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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34P/3LQFETP
Repositorysid.inpe.br/mtc-m21b/2016/06.02.18.44
Last Update2016:06.02.18.45.19 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m21b/2016/06.02.18.44.30
Metadata Last Update2018:06.04.02.40.50 (UTC) administrator
DOI10.1103/PhysRevB.93.201201
ISSN1098-0121
Citation KeyHenriquesGalgRappAbra:2016:LiPoMa
TitleLight-induced polaron magnetization in EuTe at temperatures reaching 150 K
Year2016
MonthMay
Access Date2024, May 18
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size415 KiB
2. Context
Author1 Henriques, A. B.
2 Galgano, G. D.
3 Rappl, Paulo Henrique de Oliveira
4 Abramof, Eduardo
Resume Identifier1
2
3 8JMKD3MGP5W/3C9JJ37
4 8JMKD3MGP5W/3C9JGUH
Group1
2
3 LAS-CTE-INPE-MCTI-GOV-BR
4 LAS-CTE-INPE-MCTI-GOV-BR
Affiliation1 Universidade de São Paulo (USP)
2 Universidade de São Paulo (USP)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1
2
3 paulo.rappl@inpe.br
4 eduardo.abramof@inpe.br
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume93
Number20
Pages201201
History (UTC)2016-06-02 18:45:19 :: simone -> administrator :: 2016
2018-06-04 02:40:50 :: administrator -> simone :: 2016
3. Content and structure
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Transferable1
Content TypeExternal Contribution
Version Typepublisher
AbstractWe demonstrate that light creates a highly magnetized region in a magnetic semiconductor far above its critical temperature. A near-gap photon generates a quasiparticle of nonzero magnetic moment, named magnetic polaron, which is constituted by the photoexcited electron and about 1000 spin-polarized lattice atoms surrounding the photoexcited electron. The photoinduced magnetization follows a Langevin function, whose shape uniquely determines the magnetic moment of an individual polaron. In EuTe at 5 K the magnetic moment reaches a giant value of over 500 Bohr magnetons, thus the photoinduced magnetization saturates with a magnetic field of only 50 mT, which characterizes the magnetic polaron system as superparamagnetic. The polaron has an average lifetime of 15μs. When temperature is increased its magnetic moment decreases, but at 150 K it still has a large value of about 80 Bohr magnetons. The paramagnet of polarons is fully controlled by light. Because the magnetic polaron affects only spin orientation, but not the charge distribution, in the superparamagnetic state the ideal optical quality of the host semiconductor is preserved.
AreaFISMAT
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4. Conditions of access and use
data URLhttp://mtc-m21b.sid.inpe.br/ibi/8JMKD3MGP3W34P/3LQFETP
zipped data URLhttp://mtc-m21b.sid.inpe.br/zip/8JMKD3MGP3W34P/3LQFETP
Languageen
User Groupself-uploading-INPE-MCTI-GOV-BR
simone
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Update Permissionnot transferred
5. Allied materials
LinkingTrabalho não Vinculado à Tese/Dissertação
Mirror Repositoryurlib.net/www/2011/03.29.20.55
Next Higher Units8JMKD3MGPCW/3ESR3H2
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.57.50 5
sid.inpe.br/bibdigital/2013/09.24.19.30 5
sid.inpe.br/mtc-m21/2012/07.13.14.44.57 1
DisseminationPORTALCAPES; SCOPUS.
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notes
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