TY - JOUR
AU1 - Tang, Jia-Xuan
AU2 - Wang, Pei-Hao
AU3 - You, Yu-Rong
AU4 - Wang, Ya-Dong
AU5 - Xu, Zhan
AU6 - Hou, Zhi-Peng
AU7 - Zhang, Hong-Guo
AU8 - Xu, Gui-Zhou
AU9 - Xu, Feng
AB - The new magnetic degree of freedom provided by the noncollinear structure plays an important role in the development of spintronic devices. In this work, we conducted a systematic study on the magnetic and electrical transport properties of the hexagonal noncollinear ferromagnetic MnFeGe alloy. Abnormal Hall effect and moderate magnetoresistance (MR) were observed below the Curie temperature (~ 200 K) of MnFeGe, in both bulk and thin-film forms. Notably, the perpendicular MR in all samples firstly grows, then quasi-linearly descends with magnetic field increasing, making an irregular M-type MR in the low-field region. It is speculated that the abnormal MR is related to the magnetic domain change, and combined with micromagnetic simulations, the labyrinth domain and sparse bubble formation are verified to exist in MnFeGe. Our work offers an understanding of the low-field-positive MR in a ferromagnet, as well as raises the possibility of magnetic bubble formation in this noncollinear system.Graphical abstract[graphic not available: see fulltext]
TI - Abnormal low-field M-type magnetoresistance in hexagonal noncollinear ferromagnetic MnFeGe alloy
JF - Rare Metals
DO - 10.1007/s12598-022-02008-y
DA - 2022-08-01
UR - https://www.deepdyve.com/lp/springer-journals/abnormal-low-field-m-type-magnetoresistance-in-hexagonal-noncollinear-JgYw3SksjD
SP - 2680
EP - 2687
VL - 41
IS - 8
DP - DeepDyve
ER -