Published February 1991 | Version v1
Journal article Metadata-only

The μSR study of the relaxation of Ho and Er magnetic moments in high-Tc 1-2-3 compounds

Creators

  • 1. Joint Inst. for Nuclear Research, Dubna (USSR)
  • 2. I.V. Kurchatov Inst. of Atomic Energy, Moscow (USSR)
  • 3. Moscow Inst. of Radioengineering, Electronics and Automation (USSR)

Description

High temperature superconductors HoBa2Cu3O7-δ (Tc≅93 K), Ho0.5Y0.5Ba2Cu3O7-δ (Tc≅93 K) and ErBa2Cu3O7-δ (Tc≅95 K) were investigated by the zero-field μSR-technique. The muon spin depolarisation rate connected with the fluctuation frequency of rare-earth ion magnetic moments was measured. It was found that the samples with holmium show a fast increase of the muon spin depolarisation rate at temperatures below 20 K, while in ErBa2Cu3O7-δ the depolarisation rate remains low in the whole temperature region studied (4.2 K-270 K). The sharp difference between the behaviours of the muon spin depolarisation rate may be explained by the difference between the ground state of Ho3+ and Er3+ ions in the crystalline field of the lattice. (orig.)

Additional details

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
63
Journal Issue
1-4,pt.1
Series
Hyperfine Interact.
Journal Page Range
241-248
ISSN
0304-3843
CODEN
HYIND

Conference

Title
5. international conference on muon spin rotation, relaxation and resonance.
Dates
9-12 Apr 1990.
Place
Oxford (UK).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Switzerland
INIS RN
22050196
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; CRYSTAL FIELD; DEPOLARIZATION; ERBIUM IONS; ERBIUM OXIDES; FLUCTUATIONS; GROUND STATES; HIGH-TC SUPERCONDUCTORS; HOLMIUM IONS; HOLMIUM OXIDES; LOW TEMPERATURE; MAGNETIC FIELDS; MAGNETIC MOMENTS; MUON PROBES; QUATERNARY COMPOUNDS; RELAXATION TIME; SPIN ORIENTATION; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; ULTRALOW TEMPERATURE; VERY LOW TEMPERATURE; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; AMINES; ATOMIC IONS; BARIUM COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY LEVELS; ERBIUM COMPOUNDS; HOLMIUM COMPOUNDS; IONS; ORGANIC COMPOUNDS; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PROBES; RARE EARTH COMPOUNDS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; VARIATIONS; YTTRIUM COMPOUNDS

Optional Information

Notes
Also published as report JINR-E--14-90-253, 1990, 8 p.