Complex anomalous Hall effect in ferrimagnetic CoxGd100−x (39 ≤ x ≤ 73) alloys-Reference-Cited by-同舟云学术

Complex anomalous Hall effect in ferrimagnetic CoxGd100−x (39 ≤ x ≤ 73) alloys

Published:2023-04-01 Issue:4 Volume:13 Page:
ISSN:2158-3226
Container-title:AIP Advances
language:en
Short-container-title:

Author:

Tang Wei¹²^ORCID,Yang Huali³^ORCID,Mo Zhaojun¹²,Xie Yali³^ORCID,Gong Liguang³^ORCID,Li Mengchao³^ORCID,Liu Chenxu³,Huang Kai³,Pan Lili³^ORCID,Li Run-Wei³⁴

Affiliation:

1. University of Science and Technology of China 1 , Hefei 230026, China

2. Ganjiang Innovation Academy, Chinese Academy of Sciences 2 , Ganzhou 341000, China

3. CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences 3 , Ningbo 315201, China

4. University of Chinese Academy of Sciences 4 , Beijing 100049, China

Abstract

Rare-earth and transition-metal (RE-TM) alloys have been studied extensively due to their unique optical and magneto-transport properties for advanced magnetic memory devices. Recent studies reveal an extra hump in the anomalous Hall effect in ferrimagnetic CoxGd100−x alloys with x ≈ 78, yet its origin is still ambiguous. In this article, the magnetic properties and Hall effect have been studied in CoxGd100−x alloys with varying Co concentrations in the range of 39 ≤ x ≤ 73. Complex anomalous Hall effect, including temperature-dependent polarity reversal and the appearance of an extra hump, has been found in a certain range of Co concentration. These characteristics were explained by the combined effect of magnetic domain evolution and spin-flop behavior. These results are helpful for understanding the complex transport properties in the RE-TM ferrimagnetic alloys.

Funder

National Natural Science Foundation of China

K. C. Wong Education Foundation

Ningbo Key Scientific and Technological Project

Publisher

AIP Publishing

Subject

General Physics and Astronomy

Link

https://pubs.aip.org/aip/adv/article-pdf/doi/10.1063/5.0141298/16819395/045104_1_5.0141298.pdf

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