Optical second- and third-harmonic generation on the ferromagnetic semiconductor europium oxide
Abstract
Optical second- and third-harmonic generation on epitaxial films of the ferromagnetic semiconductor europium oxide reveal selective coupling to the magnetic and crystallographic properties of the compound. Second-harmonic generation couples linearly to the order parameter parametrizing the long-range ferromagnetic order. In contrast, third-harmonic generation couples to the crystallographic lattice and to the short-range spin-spin correlations manifesting macroscopically as a magnetostrictive effect. These results demonstrate the potential of nonlinear optics for acquiring unique information about the crystallographic, electronic, and magnetic properties of spintronics compounds.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 23, 2011
- Source ID
- 10.1063/1.3540685
Entities
People
- Andreas Schmehl
- Carsten Becher
- Darrell G. Schlom
- Jochen Mannhart
- Manfred Fiebig
- Masakazu Matsubara
Organizations
- Air Force Office of Scientific Research
- Cornell University
- German Research Foundation
- University of Augsburg
- University of Bonn