2ND-HARMONIC MAGNETOOPTIC KERR-EFFECT FROM SPIN-VALVE TEST STRUCTURES- CORRELATION WITH MAGNETORESISTANCE RESPONSE

Authors
CRAWFORD TM ROGERS CT SILVA TJ KIM YK
Citation
Tm. Crawford et al., 2ND-HARMONIC MAGNETOOPTIC KERR-EFFECT FROM SPIN-VALVE TEST STRUCTURES- CORRELATION WITH MAGNETORESISTANCE RESPONSE, IEEE transactions on magnetics, 33(5), 1997, pp. 3598-3600
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
5
Year of publication
1997
Part
2
Pages
3598 - 3600
Database
ISI
SICI code
0018-9464(1997)33:5<3598:2MKFST>2.0.ZU;2-D
Abstract
We have simultaneously measured the second-harmonic magneto-optic Kerr effect and the magnetoresistance of patterned Ta/Ni81Fe19/Cu/Ni81Fe19 /Ta spin-valve test structures. For fields applied parallel to the bia s-current direction, we observed a one-to-one correlation between the magnetoresistance and the magnetization-dependent second-harmonic inte nsity. The dependence of the second-harmonic intensity. The dependence of the second-harmonic response arises largely from the top Ni81Fe19/ Ta interface. The existence of this one-to-one correlation implies tha t the second harmonic depends linearly on magnetization, thus offering a method for interface-specific magnetometry.