High-pressure transport properties of CeRu2Ge2
- 1. Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany)
- 2. Departement de Physique de la Matiere Condensee, Universite de Geneve, Quai Ernest-Ansermet 24, 1211 Geneve 4 (Switzerland)
- 3. Institute of Physics, Bijenicka cesta 46, PO Box 304, 10001 Zagreb (Croatia)
- 4. ETH Hoenggerberg, Laboratorium fuer Festkoerperphysik, 8093 Zuerich (Switzerland)
- 5. Paul Scherrer Institut, WHGA/123, 5232 Villigen PSI (Switzerland)
- 6. Laboratoire de Physique des Solides, Universite Paris-Sud, Batiment 510, 91405 Orsay (France)
Description
The pressure-induced changes in the temperature-dependent thermopower S(T) and electrical resistivity ρ(T) of CeRu2Ge2 are described within the single-site Anderson model. The Ce ions are treated as impurities and the coherent scattering on different Ce sites is neglected. Changing the hybridization Γ between the 4f states and the conduction band accounts for the pressure effect. The transport coefficients are calculated in the non-crossing approximation above the phase boundary line. The theoretical S(T) and ρ(T) curves show many features of the experimental data. The seemingly complicated temperature dependence of S(T) and ρ(T), and their evolution as a function of pressure, is related to the crossovers between various fixed points of the model
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/17/S823/cm5_11_012.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/0953-8984/17/S823/cm5_11_012.pdf; http://www.iop.org/;
- DOI
- 10.1088/0953-8984/17/11/012;
- PII
- S0953-8984(05)92465-X;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 17
- Journal Issue
- 11
- Journal Page Range
- p. S823-S836
- ISSN
- 0953-8984
- CODEN
- JCOMEL
Conference
- Title
- 2. international symposium on the physics of solids under high pressure using nuclear probes
- Dates
- 22-25 Jul 2004
- Place
- Cologne (Germany)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36035262
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CERIUM; CERIUM IONS; COHERENT SCATTERING; ELECTRIC CONDUCTIVITY; GERMANIUM; INTERMETALLIC COMPOUNDS; PRESSURE DEPENDENCE; RUTHENIUM; TEMPERATURE DEPENDENCE; THERMOELECTRICITY
- Descriptors DEC
- ALLOYS; CHARGED PARTICLES; ELECTRICAL PROPERTIES; ELECTRICITY; ELEMENTS; IONS; METALS; PHYSICAL PROPERTIES; PLATINUM METALS; RARE EARTHS; REFRACTORY METALS; SCATTERING; TRANSITION ELEMENTS