Impact of magnetization easy-axis distributions on the ferromagnet- antiferromagnet exchange-coupling estimation

J. Geshev; S. Nicolodi; L. G. Pereira; J. E. Schmidt; V. Skumryev; S. Suriñach; M. D. Baró

doi:https://doi.org/10.1103/PhysRevB.77.132407

Impact of magnetization easy-axis distributions on the ferromagnet- antiferromagnet exchange-coupling estimation

J. Geshev, S. Nicolodi, L. G. Pereira, J. E. Schmidt, V. Skumryev, S. Suriñach, M. D. Baró

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

10 Citations (Scopus)

Abstract

It is frequently reported that different measurement techniques may yield distinct values for the exchange anisotropy, being the difference of up to one order of magnitude on comparing magnetization loop with ac susceptibility measurements. We show, by both model calculations and a straight-forward experiment, that at least part of this difference could be attributed to big errors in the evaluation of the ferromagnet/antiferromagnet exchange coupling strengths obtained by means of ac magnetic susceptibility and dc magnetometry measurements which are caused by neglecting the easy-axis distributions or underestimating the uniaxial anisotropy of the ferromagnetic material. © 2008 The American Physical Society.

Original language	English
Article number	132407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	77
DOIs	https://doi.org/10.1103/PhysRevB.77.132407
Publication status	Published - 17 Apr 2008

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title = "Impact of magnetization easy-axis distributions on the ferromagnet- antiferromagnet exchange-coupling estimation",

abstract = "It is frequently reported that different measurement techniques may yield distinct values for the exchange anisotropy, being the difference of up to one order of magnitude on comparing magnetization loop with ac susceptibility measurements. We show, by both model calculations and a straight-forward experiment, that at least part of this difference could be attributed to big errors in the evaluation of the ferromagnet/antiferromagnet exchange coupling strengths obtained by means of ac magnetic susceptibility and dc magnetometry measurements which are caused by neglecting the easy-axis distributions or underestimating the uniaxial anisotropy of the ferromagnetic material. {\textcopyright} 2008 The American Physical Society.",

author = "J. Geshev and S. Nicolodi and Pereira, {L. G.} and Schmidt, {J. E.} and V. Skumryev and S. Suri{\~n}ach and Bar{\'o}, {M. D.}",

year = "2008",

month = apr,

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Impact of magnetization easy-axis distributions on the ferromagnet- antiferromagnet exchange-coupling estimation. / Geshev, J.; Nicolodi, S.; Pereira, L. G.; Schmidt, J. E.; Skumryev, V.; Suriñach, S.; Baró, M. D.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 77, 132407, 17.04.2008.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Impact of magnetization easy-axis distributions on the ferromagnet- antiferromagnet exchange-coupling estimation

AU - Geshev, J.

AU - Nicolodi, S.

AU - Pereira, L. G.

AU - Schmidt, J. E.

AU - Skumryev, V.

AU - Suriñach, S.

AU - Baró, M. D.

PY - 2008/4/17

Y1 - 2008/4/17

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AB - It is frequently reported that different measurement techniques may yield distinct values for the exchange anisotropy, being the difference of up to one order of magnitude on comparing magnetization loop with ac susceptibility measurements. We show, by both model calculations and a straight-forward experiment, that at least part of this difference could be attributed to big errors in the evaluation of the ferromagnet/antiferromagnet exchange coupling strengths obtained by means of ac magnetic susceptibility and dc magnetometry measurements which are caused by neglecting the easy-axis distributions or underestimating the uniaxial anisotropy of the ferromagnetic material. © 2008 The American Physical Society.

U2 - https://doi.org/10.1103/PhysRevB.77.132407

DO - https://doi.org/10.1103/PhysRevB.77.132407

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