Giant low-temperature enhancement of magneto-optic Kerr effects in PtMnSb

Authors
Carey, R Newman, DM Wears, ML
Citation
R. Carey et al., Giant low-temperature enhancement of magneto-optic Kerr effects in PtMnSb, PHYS REV B, 62(3), 2000, pp. 1520-1523
Citations number
26
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
3
Year of publication
2000
Pages
1520 - 1523
Database
ISI
SICI code
0163-1829(20000715)62:3<1520:GLEOMK>2.0.ZU;2-H
Abstract
In PtMnSb the magneto-optic Kerr effect exhibits extreme temperature depend ence in the range 100-320 K. The large polar Kerr rotation of about -1.5 de grees at photon energies around 1.85 eV at room temperature, is anomalously enhanced to almost -5 degrees as the temperature reaches 80 K. This extrem e value is shown to arise because the diagonal elements of the permittivity tensor change with temperature.