Exchange-spring like magnetic behavior of the tetragonal Heusler compound Mn2FeGa as a candidate for spin-transfer torque

Gasi T, Nayak AK, Winterlik J, Ksenofontov V, Adler P, Nicklas M, Felser C (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 102

Article Number: 202402

Journal Issue: 20

DOI: 10.1063/1.4807427

Abstract

We report structural, magnetic, and Mössbauer studies of the Heusler compound Mn2FeGa. Theoretical calculations predict that a tetragonal phase in Mn2FeGa could be an interesting candidate for spin torque transfer applications due to the presence of perpendicular magnetic anisotropy. Experimentally, we found that Mn2FeGa crystallizes in a tetragonal structure after annealing at low temperatures (≤ 400 ° C), whereas, it becomes pseudocubic for higher annealing temperatures. The sample annealed at 400 °C shows a high Curie temperature of 650 K and a hard-magnetic behavior. We observed a nonsaturating and exchange-spring type of hysteresis loops, which indicates that the sample contains two different magnetic states. The Mössbauer measurements clearly support the structural and magnetic data. All these properties make the material a potential candidate for spintronic devices, especially in thin films with perpendicular magnetic anisotropy. © 2013 AIP Publishing LLC.

Involved external institutions

Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Gasi, T., Nayak, A.K., Winterlik, J., Ksenofontov, V., Adler, P., Nicklas, M., & Felser, C. (2013). Exchange-spring like magnetic behavior of the tetragonal Heusler compound Mn2FeGa as a candidate for spin-transfer torque. Applied Physics Letters, 102(20). https://doi.org/10.1063/1.4807427

MLA:

Gasi, Teuta, et al. "Exchange-spring like magnetic behavior of the tetragonal Heusler compound Mn2FeGa as a candidate for spin-transfer torque." Applied Physics Letters 102.20 (2013).

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