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Your search keyword '"Pintilie, Lucian"' showing total 18 results
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18 results on '"Pintilie, Lucian"'

1. Ferroelectricity modulates polaronic coupling at multiferroic interfaces

Author

Husanu, Marius Adrian, primary, Popescu, Dana Georgeta, additional, Bisti, Federico, additional, Hrib, Luminita Mirela, additional, Filip, Lucian Dragos, additional, Pasuk, Iuliana, additional, Negrea, Raluca, additional, Istrate, Marian Cosmin, additional, Lev, Leonid, additional, Schmitt, Thorsten, additional, Pintilie, Lucian, additional, Mishchenko, Andrey, additional, Teodorescu, Cristian Mihail, additional, and Strocov, Vladimir N., additional

Published
2022
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4. ZnS stacking order influence on the formation of Zn-poor and Zn-rich Cu2ZnSnS4 phase

Author

Zaki, Mohamed Yassine, primary, El Khouja, Outman, additional, Nouneh, Khalid, additional, Ebn Touhami, Mohamed, additional, Matei, Elena, additional, Azmi, Sara, additional, Rusu, Madalin Ion, additional, Grigorescu, Cristiana Eugenia Ana, additional, Briche, Samir, additional, Boutamart, Mustapha, additional, Badica, Petre, additional, Burdusel, Mihail, additional, Secu, Mihail, additional, Pintilie, Lucian, additional, and Galca, Aurelian Catalin, additional

Published
2022
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6. Secondary phases and their influence on optical and electrical properties of electrodeposited Cu2FeSnS4 films

Author

El Khouja, Outman, primary, Galca, Aurelian Catalin, additional, Zaki, Mohamed Yassine, additional, Talbi, Abdelali, additional, Ahmoum, Hassan, additional, Nouneh, Khalid, additional, Ebn Touhami, Mohamed, additional, Taibi, M’hamed, additional, Matei, Elena, additional, Enculescu, Monica, additional, and Pintilie, Lucian, additional

Published
2021
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7. Unveiling the double-well energy landscape in a ferroelectric layer

Author

Pintilie Lucian, Stefan Slesazeck, Franz P. G. Fengler, Raluca Negrea, Terence Mittmann, Michael J. Hoffmann, Thomas Mikolajick, Benjamin Max, Melanie Herzig, and Uwe Schroeder

Subjects
010302 applied physics, Multidisciplinary, Materials science, ferroelectric materials, negative capacitance, energy efficiency, double-well energy landscape, Energy landscape, Heterojunction, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Ferroelectricity, Engineering physics, Pyroelectricity, law.invention, Capacitor, law, 0103 physical sciences, Electrical measurements, ddc:500, Thin film, 0210 nano-technology, Ferroelektrische Materialien, negative Kapazität, Energieeffizienz, Double-Well-Energielandschaft, Negative impedance converter
Abstract

The properties of ferroelectric materials, which were discovered almost a century ago¹ , have led to a huge range of applications, such as digital information storage² , pyroelectric energy conversion³ and neuromorphic computing⁴⁻⁵ . Recently, it was shown that ferroelectrics can have negative capacitance⁶⁻¹¹, which could improve the energy efficiency of conventional electronics beyond fundamental limits¹²⁻¹⁴. In Landau–Ginzburg–Devonshire theory¹⁵⁻¹⁷, this negative capacitance is directly related to the doublewell shape of the ferroelectric polarization–energy landscape, which was thought for more than 70 years to be inaccessible to experiments¹⁸. Here we report electrical measurements of the intrinsic double-well energy landscape in a thin layer of ferroelectric Hf₀.₅Zr₀.₅O₂. To achieve this, we integrated the ferroelectric into a heterostructure capacitor with a second dielectric layer to prevent immediate screening of polarization charges during switching. These results show that negative capacitance has its origin in the energy barrier in a double-well landscape. Furthermore, we demonstrate that ferroelectric negative capacitance can be fast and hysteresis-free, which is important for prospective applications¹⁹. In addition, the Hf₀.₅Zr₀.₅O₂ used in this work is currently the most industry-relevant ferroelectric material, because both HfO₂ and ZrO₂ thin films are already used in everyday electronics²⁰. This could lead to fast adoption of negative capacitance effects in future products with markedly improved energy efficiency.

Published
2019
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13. Polarization induced self-doping in epitaxial Pb(Zr0.20Ti0.80)O3 thin films

Author

Pintilie, Lucian, primary, Ghica, Corneliu, additional, Teodorescu, Cristian Mihail, additional, Pintilie, Ioana, additional, Chirila, Cristina, additional, Pasuk, Iuliana, additional, Trupina, Lucian, additional, Hrib, Luminita, additional, Boni, Andra Georgia, additional, Georgiana Apostol, Nicoleta, additional, Abramiuc, Laura Elena, additional, Negrea, Raluca, additional, Stefan, Mariana, additional, and Ghica, Daniela, additional

Published
2015
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