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arXiv 1503.07409cond-mat.mtrl-sci
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Dzyaloshinskiii-Moriya相互作用在控制之下:Fe $_{1-x}$ Co $_x$ Si的结构和磁性之间手性链接的协调翻转

The Dzyaloshinskii-Moriya interaction is under control: an orchestrated flip of the chiral link between structure and magnetism for Fe$_{1-x}$Co$_x$Si

S. -A. Siegfried, E. V. Altynbaev, N. M. Chubova, V. Dyadkin, D. Chernyshov, E. V. Moskvin, D. Menzel, A. Heinemann, A. Schreyer A., S. V. Grigoriev

摘要:

3d金属的单硅化物经常表现出手性磁有序,其绝对构型由晶体结构的手性和Dzyaloshinskiii-Moriya相互作用(Dzyaloshinskiii-Moriya interaction)的符号定义。结构和磁性的手征性在这里探讨Fe $_{1-x}$ Co $_x$ Si系列和它们的相互关系被发现是依赖于化学组成。晶体结构的手性以前被证明是由晶体生长,和的值几乎是相同的所有的单硅化物的Fe,Co和Mn。我们的研究结果表明,在Fe $_{1-x}$ Co $_x$ Si中的电子自旋的符号是由Co成分$x$控制的,因此,打开了一条路线走向手性自旋电子学器件的控制设计。

英文摘要:

Monosilicides of 3d-metals frequently show a chiral magnetic ordering with the absolute configuration defined by the chirality of the crystal structure and the sign of the Dzyaloshinskii-Moriya interaction (DMI). Structural and magnetic chiralities are probed here for Fe$_{1-x}$Co$_x$Si series and their mutual relationship is found to be dependent on the chemical composition. The chirality of crystal structure was previously shown to be governed by crystal growth, and the value of the DMI is nearly the same for all monosilicides of Fe, Co and Mn. Our findings indicate that the sign of the DMI in Fe$_{1-x}$Co$_x$Si is controlled by the Co composition $x$, thus, opening a route towards controlled design of chiral spintronics devices.

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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