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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optical third harmonic generation in the magnetic semiconductor EuSe

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Author(s):
Lafrentz, M. [1] ; Brunne, D. [1] ; Kaminski, B. [1] ; Pavlov, V. V. [2] ; Pisarev, R. V. [2] ; Henriques, A. B. [3] ; Yakovlev, D. R. [2, 1] ; Springholz, G. [4] ; Bauer, G. [4] ; Bayer, M. [1]
Total Authors: 10
Affiliation:
[1] Tech Univ Dortmund, D-44221 Dortmund - Germany
[2] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021 - Russia
[3] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil
[4] Johannes Kepler Univ Linz, Inst Halbleiter & Festkorperphys, A-4040 Linz - Austria
Total Affiliations: 4
Document type: Journal article
Source: Physical Review B; v. 85, n. 3 JAN 17 2012.
Web of Science Citations: 9
Abstract

Third harmonic generation (THG) has been studied in europium selenide EuSe in the vicinity of the band gap at 2.1-2.6 eV and at higher energies up to 3.7 eV. EuSe is amagnetic semiconductor crystalizing in centrosymmetric structure of rock-salt type with the point group m3m. For this symmetry the crystallographic and magnetic-field-induced THG nonlinearities are allowed in the electric-dipole approximation. Using temperature, magnetic field, and rotational anisotropy measurements, the crystallographic and magnetic-field-induced contributions to THG were unambiguously separated. Strong resonant magnetic-field-induced THG signals were measured at energies in the range of 2.1-2.6 eV and 3.1-3.6 eV for which we assign to transitions from 4 f(7) to 4 f(6)5d(1) bands, namely involving 5d(t(2g)) and 5d(e(g)) states. (AU)

FAPESP's process: 10/10452-8 - Multiple harmonic spectroscopy, spin orientation and instantaneous magnetization using light
Grantee:Andre Bohomoletz Henriques
Support type: Regular Research Grants