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Your search keyword '"V. N. Duginov"' showing total 2 results
Start Over Author "V. N. Duginov" Journal journal of magnetism and magnetic materials
2 results on '"V. N. Duginov"'

1. Magnetic transitions in Y2Cu2O5 studied by μSR

Author

V. Yu. Pomjakushin, I. A. Krivosheev, A. N. Ponomarev, A. J. Zaleski, V. A. Zhukov, V. G. Olshevsky, A. V. Pirogov, J. Klamut, V. G. Grebinnik, V. N. Duginov, T. N. Mamedov, R. Horyń, and B. F. Kirillov

Subjects
Superconductivity, Paramagnetism, Phase transition, Muon, Materials science, Condensed matter physics, Atmospheric temperature range, Condensed Matter Physics, Néel temperature, Magnetic susceptibility, Electronic, Optical and Magnetic Materials, Magnetic field
Abstract

μSR investigation of magnetic properties of Y 2 Cu 2 O 5 has been performed in the temperature range 4.2–30 K. Besides the known magnetic phase transition at T N1 = 13 K the peculiarity in the temperature dependence of the local magnetic field on muon was observed near T N2 = 7.5 K. The applying of a small external magnetic field of 50 Oe leads to smearing of this peculiarity.

Published
1995

2. Charge transfer and carrier density in Bi-2212 high-Tc superconductors

Author

A. N. Ponomarev, V. N. Duginov, Y.Yu. Pomjakushin, A. V. Pirogov, V. G. Grebinnik, B. F. Kirillov, V. G. Olshevsky, J. Bock, Anthony A. Amato, F. N. Gygax, A. Schenck, S. Kapusta, E. Preisler, M. Weber, H. Maletta, Vyacheslav G. Storchak, and V. A. Zhukov

Subjects
Superconductivity, Materials science, Charge-carrier density, Condensed matter physics, Astrophysics::High Energy Astrophysical Phenomena, Condensed Matter::Superconductivity, Doping, Neutron diffraction, Relaxation (NMR), Charge (physics), Muon spin spectroscopy, Condensed Matter Physics, Electronic, Optical and Magnetic Materials
Abstract

Muon spin relaxation and neutron diffraction measurements were performed in Y and Pb substituted Bi-2212 superconductors in order to study the correlation between T c and hole density. We observe first an increase of both T c and the superconducting carrier density via hole transfer, but subsequently (at higher “doping”) more and more holes are prevented from forming superconducting pairs.

Published
1992

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