Effect of deposition parameters on the CPP-GMR of NiMnSb-based spin-valve structures

Authors
Caballero, JA Reilly, AC Hao, Y Bass, J Pratt, WP Petroff, F Childress, JR
Citation
Ja. Caballero et al., Effect of deposition parameters on the CPP-GMR of NiMnSb-based spin-valve structures, J MAGN MAGN, 199, 1999, pp. 55-57
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
199
Year of publication
1999
Pages
55 - 57
Database
ISI
SICI code
0304-8853(199906)199:<55:EODPOT>2.0.ZU;2-N
Abstract
We present measurements of current perpendicular magnetoresistance of NiMnS b/Cu/NiMnSb spin-valve structures based upon the predicted half-metallic(10 0% spin polarized) ferromagnetic alloy NiMnSb. The observed effect of 5-10% is much smaller than the complete spin-valve effect expected from a 100% s pin-polarized system. The dependence of the magnetoresistance on film thick ness and deposition parameters are explored to understand the factors limit ing giant magnetoresistance in these structures. (C) 1999 Elsevier Science B.V. All rights reserved.