Spin dynamics and magnetic frustration effects in La1–xSrxCoO3 (0<x
0.5) compounds
La1–xSrxCoO3 (0<x0.5) have been thoroughly studied by means of dc magnetization, ac susceptibilities, and electron-spin-resonance (ESR) spectra. Spin-glass behavior and its transition process ...
0.5) compoundsLa1–xSrxCoO3 (0<x0.5) have been thoroughly studied by means of dc magnetization, ac susceptibilities, and electron-spin-resonance (ESR) spectra. Spin-glass behavior and its transition process ...
Universal scaling functions and multi-critical points in the site frustrated Heisenberg model
Recently, the ordering scenario of three-dimensional site frustrated Heisenberg models has been challenged. The existence of a decoupled tetracritical point (DTP) where ferromagnetic (FM) and antiferr...
Recently, the ordering scenario of three-dimensional site frustrated Heisenberg models has been challenged. The existence of a decoupled tetracritical point (DTP) where ferromagnetic (FM) and antiferr...
Absence of Kondo lattice coherence effects in Ce0.6La0.4Pb3: A magnetic-field study
J. Appl. Phys. 97, 10A510 (2005); doi:10.1063/1.1855456
Published 28 April 2005
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The specific heat of polycrystalline Ce0.6La0.4Pb3 has been measured in magnetic fields ranging from 0 to 14 T. After subtraction of a lattice contribution, the specific heat between 1 K and 10 K is well described by the S=
single-impurity Kondo model with just one adjustable parameter: the zero-field Kondo temperature. In particular, the variation in the temperature and the height of the peak in C vs T is captured with good accuracy. This fit suggests that lattice coherence effects play no significant role in the magnetic-field response of this concentrated Kondo system.
©2005 American Institute of Physics
| History: | Presented 11 November 2004; published 28 April 2005 |
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BibSonomy
KEYWORDS and PACS
cerium alloys,
lanthanum alloys,
lead alloys,
antiferromagnetic materials,
Kondo effect,
specific heat,
magnetic field effects,
impurity states
- 75.50.Ee
Antiferromagnetics - 75.30.Mb
Valence fluctuation, Kondo lattice, and heavy-fermion phenomena in magnetically ordered materials - 75.40.Cx
Static properties of magnetic materials including order parameter, static susceptibility, heat capacities, critical exponents, etc - 71.55.Ak
Impurity and defect levels in metals, semimetals, and alloys - 75.40.Mg
Numerical simulation studies of magnetic materials - YEAR: 2005
RELATED DATABASES
PUBLICATION DATA
0021-8979 (print)
1089-7550 (online)
AIP
REFERENCES (10)
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