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arXiv 1508.04701cond-mat.mtrl-sci
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3d金属单晶锗化物的热膨胀和压缩性

Thermal expansion and compressibility of monogermanides of 3d-metals

G. A. Valkovskiy, E. V. Altynbaev, M. D. Kuchugura, E. G. Yashina, V. A. Dyadkin, A. V. Tsvyashchenko, V. A. Sidorov, L. N. Fomicheva, M. Bykov, E. Bykova, L. D… 展开作者

G. A. Valkovskiy, E. V. Altynbaev, M. D. Kuchugura, E. G. Yashina, V. A. Dyadkin, A. V. Tsvyashchenko, V. A. Sidorov, L. N. Fomicheva, M. Bykov, E. Bykova, L. Dubrovinsky, D. Yu. Chernyshov, S. V. Grigoriev

摘要:

同步辐射衍射作为温度和压力的函数,比热,磁化率和小角中子散射实验揭示了MnGe的异常响应。在Mn $_{1-x}$ Co $_x$ Ge和Mn $_{1-x}$ Fe $_x$ Ge固溶体中也观察到类似但不太明显的行为。自旋密度的波动和Mn自旋态的不稳定性进行了讨论所观察到的效果作为可能的候选人。

英文摘要:

Synchrotron diffraction as a function of temperature and pressure, specific heat, magnetic susceptibility and small-angle neutron scattering experiments have revealed an anomalous response of MnGe. Similar but less pronounced behavior has also been observed in Mn$_{1-x}$Co$_x$Ge and Mn$_{1-x}$Fe$_x$Ge solid solutions. Spin density fluctuations and Mn spin state instability are discussed as possible candidates for the observed effects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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