[8p-E217-1~15] 9.5 New functional materials and new phenomena

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-E217-6] Large and Multi-step Anomalous Hall Effect in Ferrimagnetic Fe_1/2(Ti,Fe)Se₂ Crystals

〇Daiki Okuda¹, Rikizo Yano², Michi-To Suzuki², Daigo Ito³, Naoyuki Katayama³, Haruka Taniguchi⁴, Satoshi Kashiwaya⁴, Takao Sasagawa¹ (1.MSL Science Tokyo, 2.Osaka Metropolitan Univ., 3.Okayama Univ., 4.Nagoya Univ.)

Keywords:

Anomalous Hall Effect

In recent years, magnetic materials exhibiting a large anomalous Hall effect (AHE) despite a small net magnetization have attracted considerable attention as candidates for magnetic memory applications. Systems showing multi-step changes in the AHE are of particular interest for realizing multilevel data storage. In this study, we focused on the ferrimagnet Fe_1/2(Ti,Fe)Se₂ and performed single-crystal growth and physical property measurements. We observed an anomalously large AHE exceeding that expected from the measured magnetization. Furthermore, Hall resistivity measurements with varying magnetic-field orientations revealed multi-step changes in the Hall response.