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

^*Corresponding author for this work

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",

issn = "0038-1098",

publisher = "Elsevier BV",

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

Abstract

Keywords

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