In this paper, noncollinear antiferromagnets Mn3.1Sn0.9 and Mn2.5Cr0.6Sn0.9 with an Ni3Sn-type hexagonal structure has been synthesized. An exchange bias (EB) from 5 K to room temperature has been observed in Mn 2.5 Cr 0.6 Sn 0.9 with a maximum EB field of 3166 Oe at 5 K, which decreases gradually to 60 Oe at 300 K. It is proposed that the EB is ascribed to the exchange anisotropy between the ferromagnetic component and the antiferromagnetic host due to the magnetic inhomogeneity of the materials. Large anomalous Hall effect ranging from 3.5 to 1 µ Ω · cm persists from 5 K to 300 K, which is attributed to the non-vanishing Berry phase arising from the non-collinear spin structure. Both the exchange bias and anomalous Hall effect in a wide temperature range of 5–300 K suggest that the Mn–Cr–Sn alloy has a promising application prospect in antiferromagnetic based spintronics devices.

中文翻译：

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非共线反铁磁性Mn-Cr-Sn合金在5-300 K的宽温度范围内的交换偏压和异常霍尔效应

本文合成了具有Ni3Sn型六方结构的非共线反铁磁体Mn3.1Sn0.9和Mn2.5Cr0.6Sn0.9。在Mn 2.5 Cr 0.6 Sn 0.9中观察到从5 K到室温的交换偏压（EB），在5 K时最大EB场为3166 Oe，在300 K时逐渐减小到60 Oe。归因于材料的磁性不均匀性，铁磁组分和反铁磁主体之间的交换各向异性。从5 K到300 K持续存在范围从3.5到1 µΩ·cm的较大的异常霍尔效应，这归因于非共线自旋结构引起的不消失的Berry相。