Ferroelastic control of magnetic domain structure: Direct imaging by magnetic force microscopy

被引：0

作者：

Seddon, S. D. ^{[1
]}

Haines, C. R. S. ^{[2
]}

Hase, T. P. A. ^{[3
]}

Lees, M. R. ^{[3
]}

Eng, L. M. ^{[1
,4
]}

Alexe, M. ^{[3
]}

Carpenter, M. A. ^{[5
]}

机构：

[1] Tech Univ Dresden, Inst Angew Phys, D-01069 Dresden, Germany

[2] Univ East Anglia, Fac Sci, Phys, Norwich NR4 7TJ, England

[3] Univ Warwick, Dept Phys, Coventry CV4 7AL, England

[4] Tech Univ Dresden, Ct qmat Dresden Wurzburg Cluster Excellence EXC 21, D-01062 Dresden, Germany

[5] Univ Cambridge, Dept Earth Sci, Downing St, Cambridge CB2 3EQ, England

来源：

PHYSICAL REVIEW B | 2024年 / 110卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

REMANENT MAGNETIZATION; PYRRHOTITE; SHOCK;

D O I：

10.1103/PhysRevB.110.L060404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pyrrhotite Fe7S8 provides an example of exceptionally strong magnetoelastic coupling through pinning of ferromagnetic domains by ferroelastic twins. Using direct imaging of magnetic domains by magnetic force microscopy (MFM), and thus elucidating the underlying ferroelastic domains, the mechanism by which this coupling controls the local magnetic switching behavior of regions on the pyrrhotite surface is revealed, and leads to quantitative fitting of field-dependent MFM phase shifts with bulk magnetometry data. It is shown that characteristic inflection points in the magnetometry data along certain directions, in particular [120](h)(& lowast;) of the hexagonal parent structure, are in fact caused by ferroelastic pinning of the magnetic moments.

引用

页数：6