NEUTRON-DIFFRACTION STUDY OF ANISOTROPY OF CRYSTAL-LATTICE COMPRESSION IN HIGH-T-C SUPERCONDUCTORS UNDER PRESSURE

Authors
VORONIN V MIRMELSTEIN A KARKIN A TEPLYKH A GOSHCHITSKII B IVANOV A SMIRNOV L
Citation
V. Voronin et al., NEUTRON-DIFFRACTION STUDY OF ANISOTROPY OF CRYSTAL-LATTICE COMPRESSION IN HIGH-T-C SUPERCONDUCTORS UNDER PRESSURE, Fizika nizkih temperatur, 22(5), 1996, pp. 586-589
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
Fizika nizkih temperatur → ACNP
ISSN journal
01326414
Volume
22
Issue
5
Year of publication
1996
Pages
586 - 589
Database
ISI
SICI code
0132-6414(1996)22:5<586:NSOAOC>2.0.ZU;2-X
Abstract
Pressure-induced structural changes in irradiated YBa2Cu3Ox (x = 6.95) and unirradiated (x = 6.91, 6.54, 6.39) samples have been measured by neutron powder diffraction under high pressure. T-c has been measured for c irradiated superconductors under pressure and the value of dT(c )/dP is found to be high (1.5 K/kbar). The increase in T-c is associat ed with charge transfer between the CuO2 planes and CuO chains which i s reflected by anisotropy of crystal lattice compression.