Magnetic phase diagram enriched by chemical substitution in a noncentrosymmetric helimagnet
Magnetic phase diagram enriched by chemical substitution in a noncentrosymmetric helimagnet
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非中心对称螺旋磁体中通过化学取代丰富的磁相图
DOI：
10.1103/physrevb.101.054414
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发表时间：
2019
影响因子：
3.7
通讯作者：
Taka-hisa Arima
中科院分区：
文献类型：
--
作者：
Tatsuki Sato;Yusuke Araki;Atsushi Miyake;Akiko Nakao;Nobuyuki Abe;Masashi Tokunaga;Shojiro Kimura;Yusuke Tokunaga;Taka-hisa Arima
通过Cr部分取代In，我们将反铁磁基螺旋磁体改性为亚铁磁基螺旋磁体。在外加磁场作用下，未补偿的磁矩导致共线亚铁磁结构的特征为平台状磁化和磁性超结构的消失。此外，我们还发现了一个与零场螺旋相不同的无公度磁相，它正好低于Néel温度，就像其他一些非中心对称磁体中的磁skyrmion晶体相一样。这些发现提供了一种基于材料数据库设计非共面磁态的方法。
We modify an antiferromagnetic-based helimagnetto a ferrimagnetic-based helimagnet by partial substitution of Cr for In. Upon applying a magnetic field, uncompensated moments bring about the collinear ferrimagnetic structure featured by the plateaulike magnetization and the disappearance of the magnetic superstructure. Furthermore, we have found an incommensurate magnetic phase distinct from the zero-field helix phase just below the Néel temperature as magnetic skyrmion crystal phases in some other noncentrosymmetric magnets. These findings provide a methodology to design non-coplanar magnetic states based on the material database.