Magnetic phase transitions in Gd2CuO4
Creators
- 1. Institut Laue-Langevin, 156X, 38042 Grenoble CEDEX (France)
- 2. Max-Planck-Institut fuer Festkoerperforschung, Hochfeld Magnetlabor, 166X, 38042 Grenoble CEDEX (France)
- 3. Laboratoire Louis Neel, CNRS, 66X, 38042 Grenoble CEDEX (France)
- 4. Institute for Low Temperature Physics and Engineering, Ukrainian Soviet Socialist Republic, Academy of Sciences, 310164 Kharkov (U.S.S.R.)
- 5. Institute of Physics of Solids and Semiconductors, BSSR Academy of Sciences, 220726, Minsk (U.S.S.R.)
- 6. Leningrad Nuclear Physics Institute, Gatchina (188350 U.S.S.R.)
Description
We have made neutron-diffraction, magnetization, and antiferromagnetic-resonance investigations of Gd2CuO4 single crystals. Neutron-diffraction experiments on 158Gd-enriched Gd2CuO4 single crystals show that the gadolinium atoms order antiferromagnetically at TN=6.4 K with the propagation vector k=(0,0,0). The two Gd atoms of the primitive unit cell related by the center of symmetry are oppositely oriented. The antiferromagnetic-resonance spectra indicate that Gd2CuO4 belongs to the class of ''easy-plane'' antiferromagnets and show the presence of a second-order reorientation phase transition at Hc=0.88 T (H parallel[100], T=1.8 K). The magnetization measurements confirm the presence of this reorientation transition and also show a complete ferromagnetic alignment of Gd moments at H=11 T and T=1.5 K
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 44
- Journal Issue
- 17
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 9486-9491
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23021486
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- COPPER OXIDES; GADOLINIUM OXIDES; GADOLINIUM 158; HIGH-TC SUPERCONDUCTORS; MAGNETIC PROPERTIES; MONOCRYSTALS; NEUTRON DIFFRACTION; PHASE TRANSFORMATIONS
- Descriptors DEC
- CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTALS; DIFFRACTION; EVEN-EVEN NUCLEI; GADOLINIUM COMPOUNDS; GADOLINIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; ISOTOPES; NUCLEI; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RARE EARTH NUCLEI; SCATTERING; STABLE ISOTOPES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS