Temperature and pressure dependence of NMR frequencies in ferromagnetic Heusler alloys containing cobalt and manganese期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Temperature and pressure dependence of NMR frequencies in ferromagnetic Heusler alloys containing cobalt and manganese

Authors:	M. Kawakami Y. Kasamatsu H. Ido

Affiliation:	Department of Physics, Kagoshima University, Kagoshima 890, Japan ^a Kure Technical College, Kure 737, Japan ^b Faculty of Technology, Tohoku Gakuin University, Tagajo, Miyagi 985, Japan

Abstract:	The ⁵⁹Co and ⁵⁵Mn NMR frequencies ν in Co₂MnZ (Z = Si, Ge, Sn and Ga) were measured as a function of temperature T and pressure P by the cw method. The ν/ν_4.2 value decreased faster for ⁵⁹Co than for ⁵⁵Mn with increasing T/T_C especially in Co₂MnGa, for which ∂ν/∂P was positive at 0°C in contrast to the results in other alloys.

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