Exchange splitting and spin disorder scattering in TmAs

L. B. Rigal; D. K. Maude; J. C. Portal; M. Bennett; K. E. Singer; A. R. Peaker; G. Hill; M. A. Pate

doi:10.1016/S0038-1098(98)00056-8

Exchange splitting and spin disorder scattering in TmAs

L. B. Rigal, D. K. Maude, J. C. Portal, M. Bennett, K. E. Singer, A. R. Peaker, G. Hill, M. A. Pate

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

Abstract

Magneto-transport measurements have been used to investigate the band structure and crystal-field splitting of a thin TmAs epitaxial layer buried in GaAs. From the Fourier transform of the Shubnikov-de Haas oscillations we estimate an exchange energy of 21 ± 2 meV for the interaction between conduction electrons and the electrons in the 4f shell of Thulium. Using first-order scattering theory for the crystal-field splitting and the electron-phonon interaction a Debye temperature of 238 ± 15 K and the crystal-field splitting of the groundstate of 27 ± 3 K and 71 ± 7 K for the 1st and 2nd excited states are determined from the temperature dependence of the resistance.

Original language	English
Pages (from-to)	373-377
Number of pages	5
Journal	Solid State Communications
Volume	106
Issue number	6
DOIs	https://doi.org/10.1016/S0038-1098(98)00056-8
Publication status	Published - May 1998

Keywords

A. magnetic films and multilayers
D. electronic transport
D. exchange and superexchange

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10.1016/S0038-1098(98)00056-8

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title = "Exchange splitting and spin disorder scattering in TmAs",

abstract = "Magneto-transport measurements have been used to investigate the band structure and crystal-field splitting of a thin TmAs epitaxial layer buried in GaAs. From the Fourier transform of the Shubnikov-de Haas oscillations we estimate an exchange energy of 21 ± 2 meV for the interaction between conduction electrons and the electrons in the 4f shell of Thulium. Using first-order scattering theory for the crystal-field splitting and the electron-phonon interaction a Debye temperature of 238 ± 15 K and the crystal-field splitting of the groundstate of 27 ± 3 K and 71 ± 7 K for the 1st and 2nd excited states are determined from the temperature dependence of the resistance.",

keywords = "A. magnetic films and multilayers, D. electronic transport, D. exchange and superexchange",

author = "Rigal, {L. B.} and Maude, {D. K.} and Portal, {J. C.} and M. Bennett and Singer, {K. E.} and Peaker, {A. R.} and G. Hill and Pate, {M. A.}",

year = "1998",

month = may,

doi = "10.1016/S0038-1098(98)00056-8",

language = "English",

volume = "106",

pages = "373--377",

journal = "Solid State Communications",

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number = "6",

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TY - JOUR

T1 - Exchange splitting and spin disorder scattering in TmAs

AU - Rigal, L. B.

AU - Maude, D. K.

AU - Portal, J. C.

AU - Bennett, M.

AU - Singer, K. E.

AU - Peaker, A. R.

AU - Hill, G.

AU - Pate, M. A.

PY - 1998/5

Y1 - 1998/5

N2 - Magneto-transport measurements have been used to investigate the band structure and crystal-field splitting of a thin TmAs epitaxial layer buried in GaAs. From the Fourier transform of the Shubnikov-de Haas oscillations we estimate an exchange energy of 21 ± 2 meV for the interaction between conduction electrons and the electrons in the 4f shell of Thulium. Using first-order scattering theory for the crystal-field splitting and the electron-phonon interaction a Debye temperature of 238 ± 15 K and the crystal-field splitting of the groundstate of 27 ± 3 K and 71 ± 7 K for the 1st and 2nd excited states are determined from the temperature dependence of the resistance.

AB - Magneto-transport measurements have been used to investigate the band structure and crystal-field splitting of a thin TmAs epitaxial layer buried in GaAs. From the Fourier transform of the Shubnikov-de Haas oscillations we estimate an exchange energy of 21 ± 2 meV for the interaction between conduction electrons and the electrons in the 4f shell of Thulium. Using first-order scattering theory for the crystal-field splitting and the electron-phonon interaction a Debye temperature of 238 ± 15 K and the crystal-field splitting of the groundstate of 27 ± 3 K and 71 ± 7 K for the 1st and 2nd excited states are determined from the temperature dependence of the resistance.

KW - A. magnetic films and multilayers

KW - D. electronic transport

KW - D. exchange and superexchange

UR - http://www.scopus.com/inward/record.url?scp=0032065715&partnerID=8YFLogxK

U2 - 10.1016/S0038-1098(98)00056-8

DO - 10.1016/S0038-1098(98)00056-8

M3 - Article

AN - SCOPUS:0032065715

SN - 0038-1098

VL - 106

SP - 373

EP - 377

JO - Solid State Communications

JF - Solid State Communications

IS - 6

ER -

Exchange splitting and spin disorder scattering in TmAs

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Keywords

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