Structure, exchange stiffness, and magnetic anisotropy of Co 2MnAlxSi1-x Heusler compounds

Takahide Kubota, Jaroslav Hamrle, Yuya Sakuraba, Oksana Gaier, Mikihiko Oogane, Akimasa Sakuma, Burkard Hillebrands, Koki Takanashi, Yasuo Ando

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

We have investigated the exchange constant A (exchange stiffness D) and the magnetic anisotropy of Co2MnAlxSi1-x (CMAS) Heusler compounds as a function of the film composition. In case of Co 2 MnSi, A was found to be 23.5 pJ/m (D=5.86 meV nm2). Furthermore, A decreased with an increase in the Al content x. In the case of Co2MnAl, it was found to be 4.8 pJ/m (D=1.90 meV nm2). Finally, the cubic anisotropy constant K1 of CMAS films was found to be small (below 10 kJ/ m3) and did not exhibit simple dependence on x.

Original languageEnglish
Article number113907
JournalJournal of Applied Physics
Volume106
Issue number11
DOIs
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Structure, exchange stiffness, and magnetic anisotropy of Co <sub>2</sub>MnAl<sub>x</sub>Si<sub>1-x</sub> Heusler compounds'. Together they form a unique fingerprint.

Cite this