Publication result detail

Magnetization reversal and confinement effects across the metamagnetic phase transition in mesoscale FeRh structures

ARREGI URIBEETXEBARRIA, J.; HORKÝ, M.; FABIANOVÁ, K.; TOLLEY, R.; FULLERTON, E.; UHLÍŘ, V.

Original Title

Magnetization reversal and confinement effects across the metamagnetic phase transition in mesoscale FeRh structures

English Title

Magnetization reversal and confinement effects across the metamagnetic phase transition in mesoscale FeRh structures

Type

WoS Article

Original Abstract

The effects of mesoscale confinement on the metamagnetic behavior of lithographically patterned FeRh structures are investigated via Kerr microscopy. Combining the temperatureand field-dependent magnetization reversal of individual sub-micron FeRh structures provides specific phase-transition characteristics of single mesoscale objects. Relaxation of the epitaxial strain caused by patterning lowers the metamagnetic phase transition temperature by more than 15 K upon confining FeRh films below 500 nm in one lateral dimension. We also observe that the phase transition becomes highly asymmetric when comparing the cooling and heating cycles for 300 nm-wide FeRh structures. The investigation of FeRh under lateral confinement provides an interesting platform to explore emergent metamagnetic phenomena arising from the interplay of the structural, magnetic and electronic degrees of freedom at the mesoscopic length scale.

English abstract

The effects of mesoscale confinement on the metamagnetic behavior of lithographically patterned FeRh structures are investigated via Kerr microscopy. Combining the temperatureand field-dependent magnetization reversal of individual sub-micron FeRh structures provides specific phase-transition characteristics of single mesoscale objects. Relaxation of the epitaxial strain caused by patterning lowers the metamagnetic phase transition temperature by more than 15 K upon confining FeRh films below 500 nm in one lateral dimension. We also observe that the phase transition becomes highly asymmetric when comparing the cooling and heating cycles for 300 nm-wide FeRh structures. The investigation of FeRh under lateral confinement provides an interesting platform to explore emergent metamagnetic phenomena arising from the interplay of the structural, magnetic and electronic degrees of freedom at the mesoscopic length scale.

Keywords

FeRh, first-order phase transition, mesoscale confinement, magnetization reversal, Kerr microscopy, strain relaxation, phase transition asymmetry

Key words in English

FeRh, first-order phase transition, mesoscale confinement, magnetization reversal, Kerr microscopy, strain relaxation, phase transition asymmetry

Authors

ARREGI URIBEETXEBARRIA, J.; HORKÝ, M.; FABIANOVÁ, K.; TOLLEY, R.; FULLERTON, E.; UHLÍŘ, V.

RIV year

2019

Released

14.03.2018

Publisher

IOP PUBLISHING LTD

ISBN

1361-6463

Periodical

JOURNAL OF PHYSICS D-APPLIED PHYSICS

Volume

51

Number

10

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

12

Pages count

12

URL

http://iopscience.iop.org.ezproxy.lib.vutbr.cz/article/10.1088/1361-6463/aaaa5a/meta

Full text in the Digital Library

http://hdl.handle.net/11012/138316

BibTex

@article{BUT146533,
  author="Jon Ander {Arregi Uribeetxebarria} and Michal {Horký} and Kateřina {Fabianová} and Robert {Tolley} and E.E. {Fullerton} and Vojtěch {Uhlíř}",
  title="Magnetization reversal and confinement effects across the metamagnetic phase transition in mesoscale FeRh structures",
  journal="JOURNAL OF PHYSICS D-APPLIED PHYSICS",
  year="2018",
  volume="51",
  number="10",
  pages="1--12",
  doi="10.1088/1361-6463/aaaa5a",
  issn="0022-3727",
  url="http://iopscience.iop.org.ezproxy.lib.vutbr.cz/article/10.1088/1361-6463/aaaa5a/meta"
}