DIRECT MEASUREMENT OF THE ELECTRON SPIN-LATTICE RELAXATION-TIME OF PARAMAGNETIC CENTERS IN A HIGH-T(C) SUPERCONDUCTOR

Authors
ATSARKIN VA BUSH AA VASNEVA GA
Citation
Va. Atsarkin et al., DIRECT MEASUREMENT OF THE ELECTRON SPIN-LATTICE RELAXATION-TIME OF PARAMAGNETIC CENTERS IN A HIGH-T(C) SUPERCONDUCTOR, JETP letters, 58(2), 1993, pp. 106-110
Citations number
11
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
58
Issue
2
Year of publication
1993
Pages
106 - 110
Database
ISI
SICI code
0021-3640(1993)58:2<106:DMOTES>2.0.ZU;2-0
Abstract
The electron spin-lattice relaxation time T1 in a high-T(c) supercondu ctor has been measured directly by a method of modulated ESR saturatio n in which the longitudinal magnetization is detected. The temperature dependence of T1 for paramagnetic Cu2+ centers has been found for a Y Ba2Cu3O7-delta sample. The relaxation accelerates just below T(c), pos sibly because of the opening of the superconducting gap.