Published February 2003
| Version v1
Journal article
Low-Energy Spin Fluctuations of the Heavy-Fermion Compound CeNi2Ge2: Origin of Non-Fermi Liquid Behavior
Creators
- 1. Department of Physics, Tokyo Metropolitan University, Tokyo (Japan)
- 2. Department of Liberal Arts and Science, Toyama Prefectural University, Toyama (Japan)
Description
Neutron scattering shows that non-Fermi-liquid behavior of the heavy-Fermion compound CeNi2Ge2 is brought about by development of low-energy spin fluctuations with an energy scale of 0.6 meV. They appear around antiferromagnetic wave vectors (1/2 1/2 0) and (0 0 3/4) at low temperatures, and coexist with high-energy spin fluctuations with an energy scale of 4 meV and a modulation vector (0.23, 0.23, 1/2). The energy dependence of the spin fluctuations is a peculiar character of CeNi2Ge2 which differs from typical heavy-Fermion compounds, and suggests importance of low-energy structures of quasiparticle bands. (author)
Additional details
Publishing Information
- Journal Title
- Acta Physica Polonica. Series B
- Journal Volume
- B34
- Journal Issue
- 2,Part one
- Journal Page Range
- p. 375-378
- ISSN
- 0587-4254
Conference
- Title
- International Conference on Strongly Correlated Electron System (SCES'2002) - Part 1
- Dates
- 10-13 Jul 2002
- Place
- Cracow (Poland)
INIS
- Country of Publication
- Poland
- Country of Input or Organization
- Poland
- INIS RN
- 34075404
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANTIFERROMAGNETISM; CERIUM COMPOUNDS; ELASTIC SCATTERING; FERMI GAS MODEL; FLUCTUATIONS; GERMANIDES; NEUTRONS; NICKEL 58; NICKEL COMPOUNDS; SPIN; TEMPERATURE RANGE 0000-0013 K
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; GERMANIUM COMPOUNDS; HADRONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; MAGNETISM; MATHEMATICAL MODELS; NICKEL ISOTOPES; NUCLEAR MODELS; NUCLEI; NUCLEONS; PARTICLE PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; STABLE ISOTOPES; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; VARIATIONS
Optional Information
- Notes
- 8 refs., 2 figs.