Published August 1990 | Version v1
Journal article Metadata-only

Calculation of nuclear spin-lattice relaxation rate due to two-magnon scattering in YBa2Cu3O6

Creators

  • 1. Ceskoslovenska Akademie Ved, Prague (Czechoslovakia). Fyzikalni Ustav

Description

YBa2Cu3O6 is known to be an antiferromagnetic insulator with high Neel temperature (TN∝400-500 K). The nuclear spin-lattice relaxation rate 1/T1 due to two-magnon scattering is calculated, using values of exchange integrals and anisotropy gap published in literature. We found approximately quadratic dependence of relaxation rate 1/T1 on temperature for temperatures above 100 K. The value of 1/T1, determined by low-energy magnons, is found to be inversely proportional to magnitude of gap in magnon spectrum. (orig.)

Additional details

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
61
Journal Issue
1-4
Series
Hyperfine Interact.
Journal Page Range
1159-1164
ISSN
0304-3843
CODEN
HYIND

Conference

Title
8. international conference on hyperfine interactions.
Dates
14-19 Aug 1989.
Place
Prague (Czechoslovakia).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Switzerland
INIS RN
22037013
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTIFERROMAGNETISM; BARIUM OXIDES; CHEMICAL COMPOSITION; COPPER OXIDES; HIGH TEMPERATURE; LOW TEMPERATURE; MAGNONS; MEDIUM TEMPERATURE; NEEL TEMPERATURE; QUATERNARY COMPOUNDS; RELAXATION TIME; SPIN-LATTICE RELAXATION; TEMPERATURE DEPENDENCE; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; AMINES; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; MAGNETISM; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; RELAXATION; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS