TY - JOUR
T1 - Substitution effect of Ba on magnetic properties of layered oxysulfide (Sr,Ba)2Cu2CoO2S2 with CoO 2 square planes
AU - Okada, S.
AU - Matoba, M.
PY - 2009
Y1 - 2009
N2 - We have studied the magnetic properties of Ba-doped layered cobalt oxysulfide (Sr,Ba)2Cu2CoO2S2 with CoO2 squre-planes. The antiferromagnetic nature was considered to originate from the CoO2 layer dominantly. However, the effect of the inter-layer of CoO2 planes has not been clear. We therefore synthesized polycrystalline (Sr, Ba)2Cu2CoO 2S2, and investigated the effect of inter-layer distance on the magnetic properties in detail. When Sr was substituted by Ba, the difference between zero-field-cooled and field-cooled magnetization was found to decrease clearly, and such difference was ascribed to reflect the increase of the distance between CoO2 layers owing to the difference of the ionic radii between smaller Sr and lager Ba. There is a possibility that two dimensional magnetic order has strengthened.
AB - We have studied the magnetic properties of Ba-doped layered cobalt oxysulfide (Sr,Ba)2Cu2CoO2S2 with CoO2 squre-planes. The antiferromagnetic nature was considered to originate from the CoO2 layer dominantly. However, the effect of the inter-layer of CoO2 planes has not been clear. We therefore synthesized polycrystalline (Sr, Ba)2Cu2CoO 2S2, and investigated the effect of inter-layer distance on the magnetic properties in detail. When Sr was substituted by Ba, the difference between zero-field-cooled and field-cooled magnetization was found to decrease clearly, and such difference was ascribed to reflect the increase of the distance between CoO2 layers owing to the difference of the ionic radii between smaller Sr and lager Ba. There is a possibility that two dimensional magnetic order has strengthened.
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U2 - 10.1088/1742-6596/150/4/042154
DO - 10.1088/1742-6596/150/4/042154
M3 - Article
AN - SCOPUS:77952488533
SN - 1742-6588
VL - 150
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 4
M1 - 042154
ER -