Unusual impurity effect on room-temperature ferromagnet Sr3YCo4O10.56

Wataru Kobayashi; S. Yoshida; I. Terasaki

doi:10.1016/j.progsolidstchem.2007.01.008

Unusual impurity effect on room-temperature ferromagnet Sr₃YCo₄O_10.56

Wataru Kobayashi^*, S. Yoshida, I. Terasaki

^*この研究の対応する著者

研究成果: Review article › 査読

11 被引用数 (Scopus)

抄録

We have prepared polycrystalline samples of Sr₃YCo₄O_10.56, Sr_2.4Ca_0.6YCo₄O_10.54, and Sr₃YCo_3.76Mn_0.24O_10.59, and found that these materials show unusual impurity effects on their transport and magnetic properties. A tiny amount of impurities such as Mn or Ca suppresses room-temperature ferromagnetism of Sr₃YCo₄O_10.56. With the suppression, their resistivities and thermopowers are also dramatically changed. We propose that the unusual impurity effects are caused by the suppression of orbital ordering.

本文言語	English
ページ（範囲）	355-360
ページ数	6
ジャーナル	Progress in Solid State Chemistry
巻	35
号	2-4 SPEC. ISS.
DOI	https://doi.org/10.1016/j.progsolidstchem.2007.01.008
出版ステータス	Published - 2007

ASJC Scopus subject areas

材料化学

文献へのアクセス

10.1016/j.progsolidstchem.2007.01.008

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引用スタイル

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title = "Unusual impurity effect on room-temperature ferromagnet Sr3YCo4O10.56 ",

abstract = "We have prepared polycrystalline samples of Sr3YCo4O10.56, Sr2.4Ca0.6YCo4O10.54, and Sr3YCo3.76Mn0.24O10.59, and found that these materials show unusual impurity effects on their transport and magnetic properties. A tiny amount of impurities such as Mn or Ca suppresses room-temperature ferromagnetism of Sr3YCo4O10.56. With the suppression, their resistivities and thermopowers are also dramatically changed. We propose that the unusual impurity effects are caused by the suppression of orbital ordering.",

keywords = "A-site ordering, Cobalt oxide, Ferromagnetism",

author = "Wataru Kobayashi and S. Yoshida and I. Terasaki",

year = "2007",

doi = "10.1016/j.progsolidstchem.2007.01.008",

language = "English",

volume = "35",

pages = "355--360",

journal = "Progress in Solid State Chemistry",

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TY - JOUR

T1 - Unusual impurity effect on room-temperature ferromagnet Sr3YCo4O10.56

AU - Kobayashi, Wataru

AU - Yoshida, S.

AU - Terasaki, I.

PY - 2007

Y1 - 2007

N2 - We have prepared polycrystalline samples of Sr3YCo4O10.56, Sr2.4Ca0.6YCo4O10.54, and Sr3YCo3.76Mn0.24O10.59, and found that these materials show unusual impurity effects on their transport and magnetic properties. A tiny amount of impurities such as Mn or Ca suppresses room-temperature ferromagnetism of Sr3YCo4O10.56. With the suppression, their resistivities and thermopowers are also dramatically changed. We propose that the unusual impurity effects are caused by the suppression of orbital ordering.

AB - We have prepared polycrystalline samples of Sr3YCo4O10.56, Sr2.4Ca0.6YCo4O10.54, and Sr3YCo3.76Mn0.24O10.59, and found that these materials show unusual impurity effects on their transport and magnetic properties. A tiny amount of impurities such as Mn or Ca suppresses room-temperature ferromagnetism of Sr3YCo4O10.56. With the suppression, their resistivities and thermopowers are also dramatically changed. We propose that the unusual impurity effects are caused by the suppression of orbital ordering.

KW - A-site ordering

KW - Cobalt oxide

KW - Ferromagnetism

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U2 - 10.1016/j.progsolidstchem.2007.01.008

DO - 10.1016/j.progsolidstchem.2007.01.008

M3 - Review article

AN - SCOPUS:34347242462

SN - 0079-6786

VL - 35

SP - 355

EP - 360

JO - Progress in Solid State Chemistry

JF - Progress in Solid State Chemistry

IS - 2-4 SPEC. ISS.

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