Published October 2011 | Version v1
Journal article Metadata-only

Observation of a first-order phase transition deep within the vortex-solid region of YBa2Cu3O7

Creators

  • 1. Physics Institute, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
  • 2. Walther Meissner Institute, BAdW, D-85748 Garching (Germany)

Description

We have investigated the magnetic phase diagram of a fully oxygenated detwinned YBa2Cu3O7 single crystal by means of magneto-caloric and magnetization measurements, and found thermodynamic evidence for a temperature dependent first-order phase-transition line deep within the vortex-solid region. The associated discontinuities in the entropy are apparently proportional to the magnetic flux density, which may hint at a structural transition of the vortex lattice.

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-2048/24/10/105019

Additional details

Identifiers

DOI
10.1088/0953-2048/24/10/105019;
PII
S0953-2048(11)92368-9;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
24
Journal Issue
10
Journal Page Range
[5 p.]
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43015169
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CUPRATES; ENTROPY; FLUX DENSITY; MAGNETIC FLUX; MAGNETIZATION; MONOCRYSTALS; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; SOLIDS; TEMPERATURE DEPENDENCE; VORTICES; YTTRIUM COMPOUNDS
Descriptors DEC
COPPER COMPOUNDS; CRYSTALS; DIAGRAMS; INFORMATION; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS