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1. Near-Ultraviolet Radiation toward Molecular Cloud N4 in W 50/SS 433: Evidence for Direct Interaction of the Jet with Molecular Cloud

Author

Yamamoto, H., Ishikawa, T., and Takeuchi, T. T.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We compared the molecular clouds in the western part of SS 433 with near-ultraviolet radiation data obtained from GALEX. Near-ultraviolet radiation is prominently confirmed toward only N4, while no near-ultraviolet radiation is detected toward N1, N2, and N3. The radiative region of near-ultraviolet radiation is nearly the same as the CO-emitting region in N4, and does not extend beyond the jet seen in X-ray radiation. Near-ultraviolet radiation cannot be explained solely by broadband continuous radiation and may originate from line emissions. The intensity of near-ultraviolet radiation exhibits an anti-correlation with that of 13CO(J=3-2) emission. This anti-correlation, along with strong far-infrared radiation in the region with weaker near-ultraviolet radiation intensity compared to its surroundings, suggests that near-ultraviolet radiation originates from behind the molecular cloud, heating up the interstellar dust in N4. Subsequently, the dust in N4 re-radiates in the far-infrared band. In the same region, a high peak T_MB ratio of 12CO(J=3-2)/12CO(J=1-0) of ~0.9, and a high kinetic temperature of T_k ~56 K in the molecular cloud indicate that CO molecules are highly excited, and the molecular cloud is heated through photoelectric heating. This heating results from electrons released due to the photoelectric effect caused by the phenomenon where interstellar dust absorbs near-ultraviolet radiation. In terms of the timescale of near-ultraviolet radiation originating from line emissions, near-ultraviolet radiation towards N4 cannot be explained by the shock of the blast wave from a supernova that created W 50. These findings also suggest that N4 directly interacts with the jet from SS 433. As a result of this direct interaction, near-ultraviolet radiation is emitted from an interacting layer between the jet and N4., Comment: 16 pages, 7 figures, Accepted for publication in PASJ

Published
2024
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3. Renal Recovery for Patients with ANCA-Associated Vasculitis and Low eGFR in the ADVOCATE Trial of Avacopan

Author

Peh, C. Au, Chakera, A., Cooper, B., Kurtkoti, J., Langguth, D., Levidiotis, V., Luxton, G., Mount, P., Mudge, D., Noble, E., Phoon, R., Ranganathan, D., Ritchie, A., Ryan, J., Suranyi, M., Rosenkranz, A., Lhotta, K., Kronbichler, A., Demoulin, N., Bovy, C., Hellemans, R., Hougardy, J., Sprangers, B., Wissing, K., Pagnoux, C., Barbour, S., Brachemi, S., Cournoyer, S., Girard, L., Laurin, L., Liang, P., Philibert, D., Walsh, M., Tesar, V., Becvar, R., Horak, P., Rychlik, I., Szpirt, W., Dieperink, H., Gregersen, J., Ivarsen, P., Krarup, E., Lyngsoe, C., Rigothier, C., Augusto, J., Belot, A., Chauveau, D., Cornec, D., Jourde-Chiche, N., Ficheux, M., Karras, A., Klein, A., Maurier, F., Mesbah, R., Moranne, O., Neel, A., Quemeneur, T., Saadoun, D., Terrier, B., Zaoui, P., Schaier, M., Benck, U., Bergner, R., Busch, M., Floege, J., Grundmann, F., Haller, H., Haubitz, M., Hellmich, B., Henes, J., Hohenstein, B., Hugo, C., Iking-Konert, C., Arndt, F., Kubacki, T., Kotter, I., Lamprecht, P., Lindner, T., Halbritter, J., Mehling, H., Schönermarck, U., Venhoff, N., Vielhauer, V., Witzke, O., Szombati, I., Szucs, G., Garibotto, G., Alberici, F., Brunetta, E., Dagna, L., De Vita, S., Emmi, G., Gabrielli, A., Manenti, L., Pieruzzi, F., Roccatello, D., Salvarani, C., Dobashi, H., Atsumi, T., Fujimoto, S., Hagino, N., Ihata, A., Kaname, S., Kaneko, Y., Katagiri, A., Katayama, M., Kirino, Y., Kitagawa, K., Komatsuda, A., Kono, H., Kurasawa, T., Matsumura, R., Mimura, T., Morinobu, A., Murakawa, Y., Naniwa, T., Nanki, T., Ogawa, N., Oshima, H., Sada, K., Sugiyama, E., Takeuchi, T., Taki, H., Tamura, N., Tsukamoto, T., Yamagata, K., Yamamura, M., van Daele, P., Rutgers, A., Teng, Y., Walker, R., Chua, I., Collins, M., Rabindranath, K., de Zoysa, J., Svensson, M., Grevbo, B., Kalstad, S., Little, M., Clarkson, M., Molloy, E., Pamplona, I. Agraz, Anton, J., Lucia, V. Barrio, Ciggaran, S., Cid, M. Cinta, Encarnacion, M. Diaz, Oliveras, X. Fulladosa, Soler, M. Jose, Rusinol, H. Marco, Praga, M., Porras, L. Quintana, Segarra, A., Bruchfeld, A., Segelmark, M., Soveri, I., Thomaidi, E., Westman, K., Neumann, T., Burnier, M., Daikeler, T., Dudler, J., Hauser, T., Seeger, H., Vogt, B., Jayne, D., Burton, J., Al Jayyousi, R., Amin, T., Andrews, J., Baines, L., Brogan, P., Dasgupta, B., Doulton, T., Flossmann, O., Griffin, S., Harper, J., Harper, L., Kidder, D., Klocke, R., Lanyon, P., Luqmani, R., McLaren, J., Makanjuola, D., McCann, L., Nandagudi, A., Selvan, S., O'Riordan, E., Patel, M., Patel, R., Pusey, C., Rajakariar, R., Robson, J., Robson, M., Salama, A., Smyth, L., Sznajd, J., Taylor, J., Merkel, P., Sreih, A., Belilos, E., Bomback, A., Carlin, J., Chen Lin, Y. Chang, Derebail, V., Dragoi, S., Dua, A., Forbess, L., Geetha, D., Gipson, P., Gohh, R., Greenwood, G.T., Hugenberg, S., Jimenez, R., Kaskas, M., Kermani, T., Kivitz, A., Koening, C., Langford, C., Marder, G., Mohamed, A., Monach, P., Neyra, N., Niemer, G., Niles, J., Obi, R., Owens, C., Parks, D., Podoll, A., Rovin, B., Sam, R., Shergy, W., Silva, A., Specks, U., Spiera, R., Springer, J., Striebich, C., Swarup, A., Thakar, S., Tiliakos, A., Tsai, Y., Waguespack, D., Wasko, M. Chester, Cortazar, Frank B., Niles, John L., Jayne, David R.W., Merkel, Peter A., Bruchfeld, Annette, Yue, Huibin, Schall, Thomas J., and Bekker, Pirow

Published
2023
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9. Selection of AVP-Shortage Patients as Candidates for Low-Dose Oral Desmopressin Administration

Author

Takeuchi T, Maki K, Okuno Y, Hattori-Kato M, and Mikami K

Subjects
avp, osmolality, desmopressin, urination, Diseases of the genitourinary system. Urology, RC870-923
Abstract

Takumi Takeuchi,1 Kazuki Maki,1 Yumiko Okuno,1 Mami Hattori-Kato,2 Koji Mikami1 1Department of Urology, Japan Organization of Occupational Health and Safety, Kanto Rosai Hospital, Nakahara-ku, Kawasaki, Japan; 2Department of Urology, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo 102-8798, JapanCorrespondence: Takumi TakeuchiDepartment of Urology, Japan Organization of Occupational Health and Safety, Kanto Rosai Hospital, 1-1 Kizukisumiyoshi-Cho, Nakahara-ku, Kawasaki 211-8510, JapanEmail takeuchit@abelia.ocn.ne.jpObjective: We herein attempted to select male patients with an elevated nocturnal urinary frequency possibly due to a shortage of AVP. These patients may be good candidates for low-dose oral desmopressin administration.Patients and Methods: Serum and spot urine osmolality, electrolytes, serum creatinine, casual blood glucose, plasma brain natriuretic polypeptide (BNP), and plasma AVP were measured at the same time in 97 elderly male patients with urinary symptoms under free water drinking.Results: A binary plot of plasma AVP and serum osmolality indicated a region at which patients had relatively lower AVP considering higher serum osmolality. It was tentatively named the desmopressin region. Twenty out of 97 (20.6%) patients were in the desmopressin region. Daily urine output did not exceed 3 L in any patient. Urine osmolality was slightly lower in patients in the desmopressin region. No significant differences were observed in urine volume, urinary frequency, or urination questionnaire scores between both groups.Conclusion: AVP-shortage patients may be selected for treatment with oral desmopressin based on measurements of serum osmolality and plasma AVP.Keywords: AVP, osmolality, desmopressin, urination

Published
2021

11. Nintedanib in patients with progressive fibrosing interstitial lung diseases—subgroup analyses by interstitial lung disease diagnosis in the INBUILD trial: a randomised, double-blind, placebo-controlled, parallel-group trial

Author

Abe, S., Aburto, M., Acosta, O., Andrews, C., Antin-Ozerkis, D., Arce, G., Arias, M., Avdeev, S., Barczyk, A., Bascom, R., Bazdyrev, E., Beirne, P., Belloli, E., Bergna, M.A., Bergot, E., Bhatt, N., Blaas, S., Bondue, B., Bonella, F., Britt, E., Buch, K., Burk, J., Cai, H., Cantin, A., Castillo Villegas, D.M., Cazaux, A., Cerri, S., Chaaban, S., Chaudhuri, N., Cottin, V., Crestani, B., Criner, G., Dahlqvist, C., Danoff, S., Dematte D'Amico, J., Dilling, D., Elias, P., Ettinger, N., Falk, J., Fernández Pérez, E.R., Gamez-Dubuis, A., Giessel, G., Gifford, A., Glassberg, M., Glazer, C., Golden, J., Gómez Carrera, L., Guiot, J., Hallowell, R., Hayashi, H., Hetzel, J., Hirani, N., Homik, L., Hope-Gill, B., Hotchkin, D., Ichikado, K., Ilkovich, M., Inoue, Y., Izumi, S., Jassem, E., Jones, L., Jouneau, S., Kaner, R., Kang, J., Kawamura, T., Kessler, R., Kim, Y., Kishi, K., Kitamura, H., Kolb, M., Kondoh, Y., Kono, C., Koschel, D., Kreuter, M., Kulkarni, T., Kus, J., Lebargy, F., León Jiménez, A., Luo, Q., Mageto, Y., Maher, T.M., Makino, S., Marchand-Adam, S., Marquette, C., Martinez, R., Martínez, M., Maturana Rozas, R., Miyazaki, Y., Moiseev, S., Molina-Molina, M., Morrison, L., Morrow, L., Moua, T., Nambiar, A., Nishioka, Y., Nunes, H., Okamoto, M., Oldham, J., Otaola, M., Padilla, M., Park, J.S., Patel, N., Pesci, A., Piotrowski, W., Pitts, L., Poonyagariyagorn, H., Prasse, A., Quadrelli, S., Randerath, W., Refini, R., Reynaud-Gaubert, M., Riviere, F., Rodríguez Portal, J.A., Rosas, I., Rossman, M., Safdar, Z., Saito, T., Sakamoto, N., Salinas Fénero, M., Sauleda, J., Schmidt, S., Scholand, M.B., Schwartz, M., Shapera, S., Shlobin, O., Sigal, B., Silva Orellana, A., Skowasch, D., Song, J.W., Stieglitz, S., Stone, H., Strek, M., Suda, T., Sugiura, H., Takahashi, H., Takaya, H., Takeuchi, T., Thavarajah, K., Tolle, L., Tomassetti, S., Tomii, K., Valenzuela, C., Vancheri, C., Varone, F., Veeraraghavan, S., Villar, A., Weigt, S., Wemeau, L., Wuyts, W., Xu, Z., Yakusevich, V., Yamada, Y., Yamauchi, H., Ziora, D., Wells, Athol U, Flaherty, Kevin R, Brown, Kevin K, Inoue, Yoshikazu, Devaraj, Anand, Richeldi, Luca, Moua, Teng, Crestani, Bruno, Wuyts, Wim A, Stowasser, Susanne, Quaresma, Manuel, Goeldner, Rainer-Georg, Schlenker-Herceg, Rozsa, and Kolb, Martin

Published
2020
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12. Room-temperature nonradiative recombination lifetimes in c-plane Al1−xInxN epilayers nearly and modestly lattice-matched to GaN (0.11 ≤ x ≤ 0.21).

Author

Li, L. Y., Shima, K., Yamanaka, M., Egawa, T., Takeuchi, T., Miyoshi, M., Ishibashi, S., Uedono, A., and Chichibu, S. F.

Subjects
CHARGE carrier lifetime, QUANTUM efficiency, DISLOCATION density, OPTOELECTRONIC devices, MOLE fraction
Abstract

Lattice-matched Al1−xInxN / GaN heterostructures with InN mole fraction (x) of 0.18 have attracted considerable interest for use in GaN-based optoelectronic devices. Because the light emission efficiency (η emission ) of Al1−xInxN alloys is far less than that of InxGa1−xN, understanding its causes is essential. For this purpose, room-temperature photoluminescence lifetime (τ PL RT ), which almost represents the nonradiative recombination lifetime that limits the internal quantum efficiency in low η emission semiconductors, of c-plane Al1−xInxN epilayers nearly and modestly lattice-matched to GaN (0.11 ≤ x ≤ 0.21) was examined. For the epilayers grown on low threading dislocation density (TDD) GaN substrates (≪ 10 7 c m − 2 ), τ PL RT principally decreased with increasing x, indicating a progressive increase in the concentration of nonradiative recombination centers (NRCs), N NRC . One of the probable causes is the growth temperature (T g ) reduction that is indispensable to incorporate more In, because in insufficient T g regime higher T g is preferred for enhancing the surface migration of adatoms to decrease the concentrations of vacancies that compose NRCs. The Al1−xInxN epilayers of the same x but grown on high TDD (> --> 10 8 c m − 2 ) GaN-on-sapphire templates exhibited shorter τ PL RT . Because the diffusion length of minority carriers was nearly zero in the Al1−xInxN epilayers, the shorter τ PL RT indicates higher bulk N NRC in high TDD epilayers. The Al1−xInxN epilayers of considerably rough surface morphologies exhibited spatially inhomogeneous τ PL RT , implying that excited carriers recombined everywhere at InN-rich to InN-poor portions, where N NRC were likely lower to higher, respectively, than the average due to the deviations in the surface stoichiometry at various non-c-plane surfaces at a given T g . [ABSTRACT FROM AUTHOR]

Published
2022
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13. Fermi Surface and Pseudogap Evolution in a Cuprate Superconductor

Author

He, Yang, Yin, Yi, Zech, M., Soumyanarayanan, Anjan, Yee, Michael M., Williams, Tess, Boyer, M. C., Chatterjee, Kamalesh, Wise, W. D., Zeljkovic, I., Kondo, Takeshi, Takeuchi, T., Ikuta, H., Mistark, Peter, Markiewicz, Robert S., Bansil, Arun, Sachdev, Subir, Hudson, E. W., and Hoffman, Jennifer. E.

Subjects
Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons
Abstract

The unclear relationship between cuprate superconductivity and the pseudogap state remains an impediment to understanding the high transition temperature (Tc) superconducting mechanism. Here we employ magnetic-field-dependent scanning tunneling microscopy to provide phase-sensitive proof that d-wave superconductivity coexists with the pseudogap on the antinodal Fermi surface of an overdoped cuprate. Furthermore, by tracking the hole doping (p) dependence of the quasiparticle interference pattern within a single Bi-based cuprate family, we observe a Fermi surface reconstruction slightly below optimal doping, indicating a zero-field quantum phase transition in notable proximity to the maximum superconducting Tc. Surprisingly, this major reorganization of the system's underlying electronic structure has no effect on the smoothly evolving pseudogap., Comment: For higher-resolution figures, please see the published version

Published
2013
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16. Electronic structure of silver chalcogenides investigated by hard x-ray photoemission spectroscopy and density functional theory calculations.

Author

Sato, K., Hirata, K., Singh, S., Kuga, K., Ogawa, F., Matsunami, M., and Takeuchi, T.

Subjects
PHOTOELECTRON spectroscopy, PHOTOEMISSION, HARD X-rays, ELECTRONIC structure, DENSITY functional theory, X-ray spectroscopy
Abstract

We have investigated the electronic structure of silver chalcogenides Ag2X (X = S, Se, Te) and their solid solutions using hard x-ray photoemission spectroscopy in combination with density functional theory calculations using generalized gradient approximation (GGA). By including the corrections for on-site Coulomb interactions (GGA + U), we successfully reproduced the valence band photoemission spectra, which consist mainly of the Ag 4d band, by calculation. The estimated values for U = 4–6 eV are slightly high for Ag 4d electrons but are consistent with those used in previously reported structural studies. On the other hand, the magnitude of the energy gap is virtually independent of U. These results suggest the strong correlation between Ag 4d electrons in Ag2X compounds to have surprisingly little impact on their electron transport properties. [ABSTRACT FROM AUTHOR]

Published
2022
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25. Multi-hole coupling power monitor with tapered sub-waveguide for dual-frequency high-power gyrotron.

Author

Yanai, R., Takeuchi, T., Mizuno, Y., Yoshimura, Y., Nishiura, M., Igami, H., Takahashi, H., Tsujimura, T. Ii, and Kenmochi, N.

Subjects
*DIRECTIONAL couplers, *PLASMA confinement, *ELECTRIC lines, *MICROWAVE plasmas, *POWER transmission, *ELECTRON plasma, *CYCLOTRON resonance
Abstract

In magnetically confined fusion plasmas, a gyrotron is an essential auxiliary heating device for generating and sustaining plasma through electron cyclotron resonance heating owing to its ability to generate high-power microwaves. Microwaves emitted from a gyrotron are often transmitted through waveguides, and the transmitted power is monitored by a power monitor with a multi-hole directional coupler at the miter bend of the transmission line. Recently, a high-power dual-frequency gyrotron has been installed and operated in the Large Helical Device. A power monitor with good sensitivity to multiple frequencies is required to monitor the power transmission of the different frequencies at the same transmission line. In order to realize the power monitor, which can couple with the multiple-frequency microwaves, we focused on a sub-waveguide shape in the power monitor and investigated the influence of the tapered sub-waveguide by conducting electromagnetic simulations using a simple model. We also performed the high-power test using a power monitor with a tapered sub-waveguide. The experimental result was different from the simulation, but enough receiving power was obtained at both 116 and 154 GHz. [ABSTRACT FROM AUTHOR]

Published
2023
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26. Oct4B, CD90, and CD73 are upregulated in bladder tissue following electro-resection of the bladder

Author

Takeuchi T, Tonooka A, Okuno Y, Hattori-Kato M, and Mikami K

Subjects
Oct4B, CD90, CD73, Electric, Stimulation, Bladder, Medicine, Medicine (General), R5-920
Abstract

Aim: We tested the hypothesis that stimulation by electro-resection of bladder tissue induces stem cells in the tissue repair process. Materials & Methods: After primary transurethral resection of a bladder tumor and surrounding tissue (TUR-Bt), second TUR-Bt was performed. Tissues excised by second TUR-Bt were immunohistochemically stained for Oct4, a marker of pluripotency, and for CD90 and CD73, markers of mesenchymal stromal cells, when no bladder tumor cells remained. Results and Conclusions: Oct4B protein was sporadically stained in the cytoplasm of interstitial cells in four out of eight cases. CD90 and CD73 are upregulated in interstitial and vascular endothelial cells without CD45 expression. Mesenchymal stromal cells, but not pluripotent stem cells, may be mainly involved in bladder tissue repair.

Published
2016

27. Detection of AR-V7 mRNA in whole blood may not predict the effectiveness of novel endocrine drugs for castration-resistant prostate cancer

Author

Takeuchi T, Okuno Y, Hattori-Kato M, Zaitsu M, and Mikami K

Subjects
AR-V7, prostate cancer, castration-resistant, Diseases of the genitourinary system. Urology, RC870-923
Abstract

Takumi Takeuchi, Yumiko Okuno, Mami Hattori-Kato, Masayoshi Zaitsu, Koji MikamiDepartment of Urology, Kanto Rosai Hospital, Kawasaki, JapanAbstract: A splice variant of androgen receptor (AR), AR-V7, lacks in androgen-binding portion and leads to aggressive cancer characteristics. Reverse transcription-polymerase chain reactions (PCRs) and subsequent nested PCRs for the amplification of AR-V7 and prostate-specific antigen (PSA) transcripts were done for whole blood of patients with prostate cancer and male controls. With primary reverse transcription PCRs, AR-V7 and PSA were detected in 4.5% and 4.7% of prostate cancer, respectively. With nested PCRs, AR-V7 messenger RNA (mRNA) was positive in 43.8% of castration-sensitive prostate cancer and 48.1% of castration-resistant prostate cancer (CRPC), while PSA mRNA was positive in 6.3% of castration-sensitive prostate cancer and 18.5% of CRPC. Whole-blood samples of controls showed AR-V7 mRNA expression by nested PCR. Based on multivariate analysis, expression of AR-V7 mRNA in whole blood was not significantly correlated with clinical parameters and PSA mRNA in blood, while univariate analysis showed a correlation between AR-V7 mRNA and metastasis at initial diagnosis. Detection of AR-V7 mRNA did not predict the reduction of serum PSA in patients with CRPC following abiraterone and enzalutamide administration. In conclusion, AR-V7 mRNA expression in normal hematopoietic cells may have annihilated the manifestation of aggressiveness of prostate cancer and the prediction of the effectiveness of abiraterone and enzalutamide by the assessment of AR-V7 mRNA in blood.Keywords: AR-V7, prostate cancer, castration-resistant

Published
2016

33. Hard x-ray photoemission spectroscopy of rhenium substituted higher manganese silicides.

Author

Matsunami, M., Iizuka, T., Ghodke, S., Yamamoto, A., Miyazaki, H., and Takeuchi, T.

Subjects
PHOTOELECTRON spectroscopy, HARD X-rays, X-ray spectroscopy, MANGANESE, FERMI energy, PHOTOEMISSION, ELECTRONIC structure
Abstract

We have investigated the electronic structure of a potential thermoelectric material, higher manganese silicide, and its solid solutions with supersaturated Re by means of hard x-ray photoemission spectroscopy. The unusual Re substitution dependence of thermoelectric properties in the higher manganese silicide, reducing the electrical resistivity without altering the Seebeck coefficient, can be explained in terms of the variation of the density of states at the Fermi level and its energy derivative. Such an electronic structure variation contributes to an improvement in the thermoelectric performance in combination with the suppressed thermal conductivity. [ABSTRACT FROM AUTHOR]

Published
2020
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34. Fermi Surface and Pseudogap Evolution in a Cuprate Superconductor

Author

He, Yang, Yin, Yi, Zech, M., Soumyanarayanan, Anjan, Yee, Michael M., Williams, Tess, Boyer, M. C., Chatterjee, Kamalesh, Wise, W. D., Zeljkovic, I., Kondo, Takeshi, Takeuchi, T., Ikuta, H., Mistark, Peter, Markiewicz, Robert S., Bansil, Arun, Sachdev, Subir, Hudson, E. W., and Hoffman, J. E.

Published
2014

35. Operation-induced degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light-emitting diodes fabricated on a sapphire substrate.

Author

Chichibu, S. F., Nagata, K., Oya, M., Kasuya, T., Okuno, K., Ishiguro, H., Saito, Y., Takeuchi, T., and Shima, K.

Subjects
LIGHT emitting diodes, POSITRON annihilation, SAPPHIRES, QUANTUM wells, QUANTUM efficiency, ENERGY bands, GOLD clusters
Abstract

Degradation mechanisms of 275-nm-band AlxGa1-xN multiple quantum well deep-ultraviolet light-emitting diodes fabricated on a (0001) sapphire substrate were investigated under hard operation conditions with the current of 350 mA and the junction temperature of 105 °C. The optical output power (Po) initially decreased by about 20% within the operating time less than 102 h and then gradually decreased to about 60% by 484 h. For elucidating the causes for the initial and subsequent degradations, complementary electrical, time-resolved photoluminescence (TRPL), and impurity characterizations were carried out making a connection with the energy band profiles. Because the degradation of the wells was less significant than the Po reduction, the initial degradation is attributed essentially to the decrease in carrier injection efficiency ( η injection ), not in internal quantum efficiency of the wells, most likely due to depassivation of initially H-passivated preexisting nonradiative recombination centers (NRCs) in a Mg-doped p-type Al0.85Ga0.15N electron blocking layer. The principal cause for the subsequent Po reduction until 484 h is attributed to further decrease in η injection due to the appearance of certain current bypasses in addition to continuous depassivation of the NRCs in p-type AlxGa1-xN layers. According to our database on the species of vacancy-type defects acting as NRCs in GaN and AlN, which have been identified using the combination of positron annihilation and TRPL measurements, vacancy clusters comprised of a cation vacancy (VIII) and nitrogen vacancies (VN), such as V III V N 2 ∼ 4 , are the most suspicious origins of the NRCs in Mg-doped p-type AlxGa1-xN layers. [ABSTRACT FROM AUTHOR]

Published
2023
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50. The Herschel ATLAS

Author

Eales, S., Dunne, L., Clements, D., Cooray, A., De Zotti, G., Dye, S., Ivison, R., Jarvis, M., Lagache, G., Maddox, S., Negrello, M., Serjeant, S., Thompson, M. A., Kampen, E. Van, Amblard, A., Andreani, P., Baes, M., Beelen, A., Bendo, G. J., Benford, D., Bertoldi, F., Bock, J., Bonfield, D., Boselli, A., Bridge, C., Buat, V., Burgarella, D., Carlberg, R., Cava, A., Chanial, P., Charlot, S., Christopher, N., Coles, P., Cortese, L., Dariush, A., da Cunha, E., Dalton, G., Danese, L., Dannerbauer, H., Driver, S., Dunlop, J., Fan, L., Farrah, D., Frayer, D., Frenk, C., Geach, J., Gardner, J., Gomez, H., González-Nuevo, J., González-Solares, E., Griffin, M., Hardcastle, M., Hatziminaoglou, E., Herranz, D., Hughes, D., Ibar, E., Jeong, Woong-Seob, Lacey, C., Lapi, A., Lawrence, A., Lee, M., Leeuw, L., Liske, J., López-Caniego, M., Müller, T., Nandra, K., Panuzzo, P., Papageorgiou, A., Patanchon, G., Peacock, J., Pearson, C., Phillipps, S., Pohlen, M., Popescu, C., Rawlings, S., Rigby, E., Rigopoulou, M., Robotham, A., Rodighiero, G., Sansom, A., Schulz, B., Scott, D., Smith, D. J. B., Sibthorpe, B., Smail, I., Stevens, J., Sutherland, W., Takeuchi, T., Tedds, J., Temi, P., Tuffs, R., Trichas, M., Vaccari, M., Valtchanov, I., van der Werf, P., Verma, A., Vieria, J., Vlahakis, C., and White, Glenn J.

Published
2010
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