Interval Identification of FMR Parameters for Spin Reorientation Transition in (Ga,Mn)As
(2012) In Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics 121(5-6). p.1228-1230- Abstract
- In this work we report results of ferromagnetic resonance studies of a 6% 15 nm (Ga,Mn)As layer, deposited on (001)-oriented GaAs. The measurements were performed with in-plane oriented magnetic field, in the temperature range between 5 K and 120 K. We observe a temperature induced reorientation of the effective in-plane easy axis from [(1) over bar 10] to [110] direction close to the Curie temperature. The behavior of magnetization is described by anisotropy fields, H-eff (= 4 pi M - H-2 perpendicular to), H-2 parallel to, and H-4 parallel to. In order to precisely investigate this reorientation, numerical values of anisotropy fields have been determined using powerful - but still largely unknown - interval calculations. In simulation... (More)
- In this work we report results of ferromagnetic resonance studies of a 6% 15 nm (Ga,Mn)As layer, deposited on (001)-oriented GaAs. The measurements were performed with in-plane oriented magnetic field, in the temperature range between 5 K and 120 K. We observe a temperature induced reorientation of the effective in-plane easy axis from [(1) over bar 10] to [110] direction close to the Curie temperature. The behavior of magnetization is described by anisotropy fields, H-eff (= 4 pi M - H-2 perpendicular to), H-2 parallel to, and H-4 parallel to. In order to precisely investigate this reorientation, numerical values of anisotropy fields have been determined using powerful - but still largely unknown - interval calculations. In simulation mode this approach makes possible to find all the resonance fields for arbitrarily oriented sample, which is generally intractable analytically. In "fitting" mode we effectively utilize full experimental information, not only those measurements performed in special, distinguished directions, to reliably estimate the values of important physical parameters as well as their uncertainties and correlations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2910869
- author
- Gutowski, M. W. ; Stefanowicz, W. ; Proselkov, O. ; Sawicki, M. ; Zuberek, R. and Sadowski, Janusz LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics
- volume
- 121
- issue
- 5-6
- pages
- 1228 - 1230
- publisher
- Institute of Physics, Polish Academy of Sciences
- external identifiers
-
- wos:000304789500074
- scopus:84861985420
- ISSN
- 0587-4246
- language
- English
- LU publication?
- yes
- id
- 6cfcfc55-a2b2-43cd-822c-6a9dc03f6c98 (old id 2910869)
- date added to LUP
- 2016-04-01 13:15:43
- date last changed
- 2022-03-31 14:50:57
@article{6cfcfc55-a2b2-43cd-822c-6a9dc03f6c98,
abstract = {{In this work we report results of ferromagnetic resonance studies of a 6% 15 nm (Ga,Mn)As layer, deposited on (001)-oriented GaAs. The measurements were performed with in-plane oriented magnetic field, in the temperature range between 5 K and 120 K. We observe a temperature induced reorientation of the effective in-plane easy axis from [(1) over bar 10] to [110] direction close to the Curie temperature. The behavior of magnetization is described by anisotropy fields, H-eff (= 4 pi M - H-2 perpendicular to), H-2 parallel to, and H-4 parallel to. In order to precisely investigate this reorientation, numerical values of anisotropy fields have been determined using powerful - but still largely unknown - interval calculations. In simulation mode this approach makes possible to find all the resonance fields for arbitrarily oriented sample, which is generally intractable analytically. In "fitting" mode we effectively utilize full experimental information, not only those measurements performed in special, distinguished directions, to reliably estimate the values of important physical parameters as well as their uncertainties and correlations.}},
author = {{Gutowski, M. W. and Stefanowicz, W. and Proselkov, O. and Sawicki, M. and Zuberek, R. and Sadowski, Janusz}},
issn = {{0587-4246}},
language = {{eng}},
number = {{5-6}},
pages = {{1228--1230}},
publisher = {{Institute of Physics, Polish Academy of Sciences}},
series = {{Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics}},
title = {{Interval Identification of FMR Parameters for Spin Reorientation Transition in (Ga,Mn)As}},
volume = {{121}},
year = {{2012}},
}