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2020 IPS Conference
Study Materials
Corporate Members
Home
About/Contact
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Events/Seminars
2020 IPS Conference
Study Materials
Corporate Members
We present a detail study of the electrical resistivity, thermoelectric power, magnetic susceptibility χ and the heat capacity CP in antiferromagnetic layered compounds CuCrS2 and CuCrSe2 at 2K-300K. CuCrS2 showed sharp cusp in χ and a lambda-like peak in CP at TN = 40K as expected for a 3D- magnetic order, while more metallic CuCrSe2 showed a rounded maximum in χ and the absence of sharp peak in CP around 55K, the CP at low temperature has T2–dependence in it which suggests 2D spin-liquid like excitation in its magnetic phase. We tentatively believe this behaviour of CuCrSe2 to be due to competing magnetic interactions between intralayer Cr atoms. The ferromagnetic Cr–Se–Cr indirect exchange among intralayer Cr atoms is enhanced in the selenide compound (that is more metallic than the sulfide compound), and competes with the antiferromagnetic Cr–Cr direct interactions. The interlayer antiferromagnetic exchange through Cu atoms leads to magnetic ordering at low temperature at TN =55 K.