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MBE growth and abnormal magnetic behaviors of epitaxial Fe100−xGax on SrTiO3

Authors :
Thi Toan Tran
Thi Hoa Vu
Anh Tuan Pham
Thi Huong Nguyen
Van Quang Nguyen
Chanyong Hwang
Sunglae Cho
Source :
AIP Advances, Vol 13, Iss 3, Pp 035334-035334-6 (2023)
Publication Year :
2023
Publisher :
AIP Publishing LLC, 2023.

Abstract

Here, we present the magnetic behaviors of disordered bcc α-Fe phase Fe100−xGax (x = 10, 20, and 30) thin films grown on a SrTiO3 substrate using molecular beam epitaxy. With the Ga content increasing from 10% to 30%, the saturation magnetization decreased from 1575 to 991 emu/cm3 while the coercivity increased from 23 to 197 Oe. A two-step-hysteresis loop was observed in all films. Specifically, the hysteresis loop of the film with 10% Ga concentration reveals an obvious kink. Magneto-optical Kerr images confirmed the abnormal magnetic domain switching in the films, which is due to the appearance of perpendicular domains under external magnetic field.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
21583226
Volume :
13
Issue :
3
Database :
Directory of Open Access Journals
Journal :
AIP Advances
Publication Type :
Academic Journal
Accession number :
edsdoj.9c46000f4faa414db02a2702a47c8b51
Document Type :
article
Full Text :
https://doi.org/10.1063/5.0136344