Mn2VAl Heusler alloy thin films: Appearance of antiferromagnetism and exchange bias in a layered structure with Fe

Tomoki Tsuchiya; Ryota Kobayashi; Takahide Kubota; Kotaro Saito; Kanta Ono; Takashi Ohhara; Akiko Nakao; Koki Takanashi

doi:10.1088/1361-6463/aaa41a

Mn₂VAl Heusler alloy thin films: Appearance of antiferromagnetism and exchange bias in a layered structure with Fe

Tomoki Tsuchiya, Ryota Kobayashi, Takahide Kubota, Kotaro Saito, Kanta Ono, Takashi Ohhara, Akiko Nakao, Koki Takanashi

Materials Development Division

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Mn₂VAl Heusler alloy films were epitaxially grown on MgO(1 0 0) single-crystal substrates by ultra-high-vacuum magnetron sputtering. A2- and L2₁-type Mn₂VAl order was controlled by the deposition temperature. A2-type Mn₂VAl films showed no spontaneous magnetization, while L2₁-type Mn₂VAl films showed ferrimagnetic behaviour with a maximum saturation magnetization of 220 emu cm^-3 at room temperature (RT). An antiferromagnetic reflection was observed with neutron diffraction at RT for an A2-type Mn₂VAl film deposited at 400 °C. A bilayer sample of the antiferromagnetic A2-type Mn₂VAl and Fe showed an exchange bias of 120 Oe at 10 K.

Original language	English
Article number	065001
Journal	Journal of Physics D: Applied Physics
Volume	51
Issue number	6
DOIs	https://doi.org/10.1088/1361-6463/aaa41a
Publication status	Published - 2018 Jan 19

Keywords

Heusler alloy
antiferromagnetism
exchange bias

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/1361-6463/aaa41a

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Tsuchiya, T., Kobayashi, R., Kubota, T., Saito, K., Ono, K., Ohhara, T., Nakao, A., & Takanashi, K. (2018). Mn₂VAl Heusler alloy thin films: Appearance of antiferromagnetism and exchange bias in a layered structure with Fe. Journal of Physics D: Applied Physics, 51(6), [065001]. https://doi.org/10.1088/1361-6463/aaa41a

Mn₂VAl Heusler alloy thin films : Appearance of antiferromagnetism and exchange bias in a layered structure with Fe. / Tsuchiya, Tomoki; Kobayashi, Ryota; Kubota, Takahide; Saito, Kotaro; Ono, Kanta; Ohhara, Takashi; Nakao, Akiko; Takanashi, Koki.

In: Journal of Physics D: Applied Physics, Vol. 51, No. 6, 065001, 19.01.2018.

Research output: Contribution to journal › Article

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abstract = "Mn2VAl Heusler alloy films were epitaxially grown on MgO(1 0 0) single-crystal substrates by ultra-high-vacuum magnetron sputtering. A2- and L21-type Mn2VAl order was controlled by the deposition temperature. A2-type Mn2VAl films showed no spontaneous magnetization, while L21-type Mn2VAl films showed ferrimagnetic behaviour with a maximum saturation magnetization of 220 emu cm-3 at room temperature (RT). An antiferromagnetic reflection was observed with neutron diffraction at RT for an A2-type Mn2VAl film deposited at 400 °C. A bilayer sample of the antiferromagnetic A2-type Mn2VAl and Fe showed an exchange bias of 120 Oe at 10 K.",

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AU - Saito, Kotaro

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AU - Ohhara, Takashi

AU - Nakao, Akiko

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