Spin fluctuations in Gd3Rh induced by f-d exchange: the influence on the T-linear specific heat
Creators
- 1. Institute of Metal Physics, Russian Academy of Science, 620219 Ekaterinburg (Russian Federation)
- 2. Institute for Molecular Science, Myodaiji, Okazaki (Japan)
- 3. Institut fuer Festkoerperphysik, TU Wien, A-1040 Vienna (Austria)
Description
The results of specific heat, magnetization and magnetic susceptibility measurements for the antiferromagnetic (AF) compound Gd3Rh are presented. Below its Neel temperature TN = 112 K, this compound exhibits a field-induced phase transition from the AF to the ferromagnetic state in a relatively small magnetic field (∼0.4 T). Specific heat measurements revealed a giant enhancement of the coefficient of the T-linear specific heat in Gd3Rh (γ = 118 mJ mol-1 K-2) in comparison with that observed for the isostructural nonmagnetic partner Y3Rh (γ = 11 mJ mol-1 K-2). An anomalous behaviour of the heat capacity as well as a set of peculiarities of magnetic properties in Gd3Rh are associated with the existence of spin fluctuations induced by f-d exchange interaction in the d-electron subsystem that arises from features of the crystal and electronic structure of the R3M-type compounds
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/15/531/c30317.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/15/531/c30317.pdf; http://www.iop.org/;
- PII
- S0953-8984(03)54320-X;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 15
- Journal Issue
- 3
- Journal Page Range
- p. 531-538
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34026087
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANTIFERROMAGNETIC MATERIALS; ANTIFERROMAGNETISM; CRYSTAL STRUCTURE; ELECTRONIC STRUCTURE; GADOLINIUM; INTERMETALLIC COMPOUNDS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; NEEL TEMPERATURE; PHASE STUDIES; PHASE TRANSFORMATIONS; RHODIUM; SPECIFIC HEAT; SPIN
- Descriptors DEC
- ALLOYS; ANGULAR MOMENTUM; ELEMENTS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MAGNETISM; MATERIALS; METALS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PLATINUM METALS; RARE EARTHS; REFRACTORY METALS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS; TRANSITION TEMPERATURE