Diamagnetic shifts of free excitons in cuins2 in magnetic fields

M.V. Yakushev, R.W. Martin, A.V. Mudryi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Single crystals of CuInS2 were studied with reflectance (RF) and photoluminescence (PL) at 4.2 K in magnetic fields up to 10 T. The diamagnetic energy shifts observed for the free excitonic lines in both the RF and PL spectra were used to calculate the reduced masses (0.141m0, 0.142m0, and 0.114m0), binding energies (18.46, 18.59, and 14.90 meV), Bohr radii (3.82, 3.79, and 4.73 nm), and hole effective masses (1.20m0, 1.28m0, and 0.40m0) for the ALPB, AUPB, and BC excitons, respectively, using a low-field perturbation approach.
LanguageEnglish
Pages042109 -042109
JournalApplied Physics Letters
Volume94
Issue number4
DOIs
Publication statusPublished - 26 Jan 2009

Fingerprint

excitons
reflectance
photoluminescence
shift
magnetic fields
binding energy
perturbation
radii
single crystals
energy

Keywords

  • binding energy
  • copper compounds
  • diamagnetic materials
  • effective mass
  • excitons
  • indium compounds
  • photoluminescence
  • reflectivity
  • ternary semiconductors

Cite this

Yakushev, M.V. ; Martin, R.W. ; Mudryi, A.V. / Diamagnetic shifts of free excitons in cuins2 in magnetic fields. In: Applied Physics Letters. 2009 ; Vol. 94, No. 4. pp. 042109 -042109.
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abstract = "Single crystals of CuInS2 were studied with reflectance (RF) and photoluminescence (PL) at 4.2 K in magnetic fields up to 10 T. The diamagnetic energy shifts observed for the free excitonic lines in both the RF and PL spectra were used to calculate the reduced masses (0.141m0, 0.142m0, and 0.114m0), binding energies (18.46, 18.59, and 14.90 meV), Bohr radii (3.82, 3.79, and 4.73 nm), and hole effective masses (1.20m0, 1.28m0, and 0.40m0) for the ALPB, AUPB, and BC excitons, respectively, using a low-field perturbation approach.",
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Diamagnetic shifts of free excitons in cuins2 in magnetic fields. / Yakushev, M.V.; Martin, R.W.; Mudryi, A.V.

In: Applied Physics Letters, Vol. 94, No. 4, 26.01.2009, p. 042109 -042109.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Diamagnetic shifts of free excitons in cuins2 in magnetic fields

AU - Yakushev, M.V.

AU - Martin, R.W.

AU - Mudryi, A.V.

PY - 2009/1/26

Y1 - 2009/1/26

N2 - Single crystals of CuInS2 were studied with reflectance (RF) and photoluminescence (PL) at 4.2 K in magnetic fields up to 10 T. The diamagnetic energy shifts observed for the free excitonic lines in both the RF and PL spectra were used to calculate the reduced masses (0.141m0, 0.142m0, and 0.114m0), binding energies (18.46, 18.59, and 14.90 meV), Bohr radii (3.82, 3.79, and 4.73 nm), and hole effective masses (1.20m0, 1.28m0, and 0.40m0) for the ALPB, AUPB, and BC excitons, respectively, using a low-field perturbation approach.

AB - Single crystals of CuInS2 were studied with reflectance (RF) and photoluminescence (PL) at 4.2 K in magnetic fields up to 10 T. The diamagnetic energy shifts observed for the free excitonic lines in both the RF and PL spectra were used to calculate the reduced masses (0.141m0, 0.142m0, and 0.114m0), binding energies (18.46, 18.59, and 14.90 meV), Bohr radii (3.82, 3.79, and 4.73 nm), and hole effective masses (1.20m0, 1.28m0, and 0.40m0) for the ALPB, AUPB, and BC excitons, respectively, using a low-field perturbation approach.

KW - binding energy

KW - copper compounds

KW - diamagnetic materials

KW - effective mass

KW - excitons

KW - indium compounds

KW - photoluminescence

KW - reflectivity

KW - ternary semiconductors

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DO - 10.1063/1.3077022

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EP - 42109

JO - Applied Physics Letters

T2 - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 4

ER -