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 SMIRNOV L
Citation
V. Voronin et al., NEUTRON-DIFFRACTION STUDY OF ANISOTROPY OF CRYSTAL-LATTICE COMPRESSION IN HIGH-T-C SUPERCONDUCTORS UNDER PRESSURE, High pressure research, 14(1-3), 1995, pp. 139-144
Citations number
11
Categorie Soggetti
Physics
Journal title
High pressure research → ACNP
ISSN journal
08957959
Volume
14
Issue
1-3
Year of publication
1995
Pages
139 - 144
Database
ISI
SICI code
0895-7959(1995)14:1-3<139: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 n eutron powder diffraction in a hydrostatic liquid pressure cell. T-c h as been measured for irradiated superconductors under pressure. The va lue of dT(c)/dP is found to be high (1.5 K/K bar). Increase in Te is a ssociated with charge transfer between the CuO2 planes and CuO chains which is reflected by anisotropy of crystal lattice compression.