Nonlinear magneto-optical Kerr effect and plasmon-assisted SHG in magneticnanomaterials exhibiting giant magnetoresistance

Authors
Murzina, TV Misuryaev, TV Kravets, AF Gudde, J Schuhmacher, D Marowsky, G Nikulin, AA Aktsipetrov, OA
Citation
Tv. Murzina et al., Nonlinear magneto-optical Kerr effect and plasmon-assisted SHG in magneticnanomaterials exhibiting giant magnetoresistance, SURF SCI, 482, 2001, pp. 1101-1106
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
482
Year of publication
2001
Part
2
Pages
1101 - 1106
Database
ISI
SICI code
0039-6028(20010620)482:<1101:NMKEAP>2.0.ZU;2-L
Abstract
Optical second harmonic generation (SHG) and nonlinear magneto-optical Kerr effect (NOMOKE) are experimentally studied in CoxAg1-x and (CoFe)(x)(Al2O3 )(1-x) granular films which exhibit giant magnetoresistance (GMR) effect. N onmonotonous dependences of the magnetoresistance, SHG intensity and NOMOKE magnetic contrast on volume fraction of the magnetic component x are found . The maximum of the NOMOKE magnetic contrast is attained at the value of x close to that providing the maximum of the magnetoresistance. The resonanc es observed in the SHG spectra are associated with the local surface plasmo n modes at the granule/host interfaces. (C) 2001 Elsevier Science B.V. All rights reserved.