Giant four-fold magnetic anisotropy in nanotwinned NiMnGa epitaxial films-Reference-Cited by-同舟云学术

Giant four-fold magnetic anisotropy in nanotwinned NiMnGa epitaxial films

Published:2023-12-01 Issue:12 Volume:11 Page:
ISSN:2166-532X
Container-title:APL Materials
language:en
Short-container-title:

Author:

Bondarenko Pavlo V.¹,Kharlan Julia¹²^ORCID,Bunyaev Sergey A.³^ORCID,Salyuk Olga¹⁴,Aseguinolaza Ivan R.⁵^ORCID,Barandiaran Jose M.⁵,Kakazei Gleb N.³^ORCID,Chernenko Volodymyr⁵⁶⁷^ORCID,Golub Vladimir O.¹^ORCID

Affiliation:

1. Institute of Magnetism NAS of Ukraine and MES of Ukraine 1 , 36-B Vernadsky Blvd., 03142 Kyiv, Ukraine

2. Faculty of Physics, Adam Mickiewicz University in Poznan 3 , Umultowska 85, 61–614 Poznan, Poland

3. Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP)/Department of Physics and Astronomy, Faculty of Sciences, University of Porto 4 , 4169-007 Porto, Portugal

4. National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute 2 ,” 37 Peremohy Ave., 03056 Kyiv, Ukraine

5. University of the Basque Country (UPV/EHU) 5 , Bilbao 48080, Spain

6. Basque Center for Materials, Applications and Nanostructure, BCMaterials 6 , Leioa 48940, Spain

7. Ikerbasque, Basque Foundation for Science 7 , Bilbao 48009, Spain

Abstract

A giant four-fold magnetic anisotropy (with an anisotropy field up to 4 kOe) was observed in the twinned NiMnGa epitaxial film. Its appearance is explained in terms of moderate coupling between twin variants having strong uniaxial magnetocrystalline anisotropies directed orthogonally when the intertwin exchange field is comparable with the anisotropy field. This finding paves the way to increase the order of magnetic anisotropy in a many-component system while keeping the value of the anisotropy field by tuning the intercomponent exchange strength and can be extended to exchange-coupled multilayers and arrays of nanoelements.

Publisher

AIP Publishing

Subject

General Engineering,General Materials Science

Link

https://pubs.aip.org/aip/apm/article-pdf/doi/10.1063/5.0162561/18271212/121114_1_5.0162561.pdf

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