Magnetic Properties of Single-Crystalline FeRh Alloy Thin Films

Author

Inoue, Sho ; Ko, Hnin Yu Yu ; Suzuki, Takao

Author_Institution

Inf. Storage Mater. Lab., Toyota Technol. Inst., Nagoya

Volume

44

Issue

11

fYear

2008

Firstpage

2875

Lastpage

2878

Abstract

The structural and magnetic properties of single-crystalline Fe_100-XRh_X (26lesXles63) grown on MgO (100) substrates were systematically studied as a function of composition, temperature and applied magnetic field. The first-order magnetic phase transition of Fe_100-XRh_X was observed with the range of 51lesXles60. The temperature dependent magnetization behavior for all the samples under investigation is presented. The transition temperature for the change from anti-ferromagnetic (AFM) to a ferromagnetic (FM) state vary between 70 to 150degC. The change in entropy, DeltaS, estimated by the change in transition temperature with applied magnetic field during cooling process, decreases with increasing X and at Xcong62, it become zero. The observed hysteresis loop performed P-MOKE shows shaper transition as compared to VSM, indicates that surface magnetization distribution is different from the overall film.

Keywords

Kerr magneto-optical effect; ferromagnetic-antiferromagnetic transitions; iron alloys; magnetic hysteresis; magnetic thin films; magnetic transition temperature; rhodium alloys; FeRh; P-MOKE; anti-ferromagnetic-ferromagnetic phase transformation; first-order magnetic phase transition; hysteresis loop; polar magneto-optical Kerr effect; single-crystalline FeRh alloy thin films; structural properties; surface magnetization distribution; temperature dependent magnetization behavior; transition temperature; FeRh; magnetic transition; polar magneto-optical Kerr effect; thin film;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2008.2001846

Filename

4717455