Nearly ferromagnetic metals AFe4Sb12 (A = Ca, Sr, and Ba)

The magnetic, transport and thermal properties of alkaline-earth-filled skutterudites AFe4Sb12 (A = Ca, Sr, Ba) are reported. All three compounds show maximum magnetic susceptibility and thermopower at 50 K and a large electronic specific heat coefficient of 100 mJ/mol K2. The electrical resistivity...

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Published in:Journal of the Physical Society of Japan 2005-05, Vol.74 (5), p.1382-1385
Main Authors: MATSUOKA, Eiichi, HAYASHI, Katsuyuki, IKEDA, Akiko, TANAKA, Kazue, TAKABATAKE, Toshiro, MATSUMURA, Masahiro
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic conduction in metals and alloys
Electronic transport in condensed matter
Exact sciences and technology
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Physics
Saturation moments and magnetic susceptibilities
Thermoelectric and thermomagnetic effects
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container_issue 5
container_start_page 1382
container_title Journal of the Physical Society of Japan
container_volume 74
creator MATSUOKA, Eiichi
HAYASHI, Katsuyuki
IKEDA, Akiko
TANAKA, Kazue
TAKABATAKE, Toshiro
MATSUMURA, Masahiro
description The magnetic, transport and thermal properties of alkaline-earth-filled skutterudites AFe4Sb12 (A = Ca, Sr, Ba) are reported. All three compounds show maximum magnetic susceptibility and thermopower at 50 K and a large electronic specific heat coefficient of 100 mJ/mol K2. The electrical resistivity exhibits a shoulder at 70 K and follows quadratic temperature dependence below 9 K. These properties are the characteristics of a nearly ferromagnetic metal. The suppression of ferromagnetic spin fluctuations of the Fe 3d band by applying magnetic fields was manifested as a negative magnetoresistance between 50 and 80 K.
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic conduction in metals and alloys
Electronic transport in condensed matter
Exact sciences and technology
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Physics
Saturation moments and magnetic susceptibilities
Thermoelectric and thermomagnetic effects
title Nearly ferromagnetic metals AFe4Sb12 (A = Ca, Sr, and Ba)
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