High-field properties of single-crystal CaVO3

Philosophical Magazine Part B Pub Date : 2002-05-01 DOI:10.1080/13642810208224370

M. Jung, I. Inoue, H. Nakotte, A. Lacerda

引用次数: 3

Abstract

Abstract The magnetic properties of perovskite CaVO3 single crystals have been studied by means of magnetoresistance ρ (T, H) and magnetization M(H) measurements in fields to 18 T. At 2K, the magnetoresistance is positive and a maximum value of Δρ(18T)/ρ(0) = 16.5% is found for H//a. The magnetization exhibits a smooth increase at 2K, reaching values of M(18T) = 0.03μB (formula unit (fu))−1, 0.05,μB fu−1, 0.17/μB fu−1 for H//a, H//b and H//c, respectively. This anisotropy found in M(H) is consistent with that observed for Δρ(H//a) ≥ ρ(H//b) > Δρ(H//c). These results can be interpreted in terms of the field-dependent scattering mechanism of CaVO3.

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单晶CaVO3的高场性质

摘要:通过测量钙钛矿CaVO3单晶的磁电阻ρ(T, H)和磁化强度M(H)，研究了钙钛矿CaVO3单晶在18T的磁场中的磁性能。在2K时，磁电阻为正，H//a的最大值为Δρ(18T)/ρ(0) = 16.5%。H//a、H//b和H//c的磁化强度在2K时平稳增加，分别达到M(18T) = 0.03μB(公式单位(fu))−1,0.05、μB fu−1,0.17 /μB fu−1。M(H)的各向异性与Δρ(H//a)≥ρ(H//b) > Δρ(H//c)的各向异性一致。这些结果可以用CaVO3的场依赖散射机制来解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Philosophical Magazine Part B

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