Giant magnetoresistance induced by magnetic barriers

Authors
Kubrak, V Edmonds, KW Neumann, AC Gallagher, BL Main, PC Henini, M Marrows, CH Hickey, BJ Thoms, S
Citation
V. Kubrak et al., Giant magnetoresistance induced by magnetic barriers, IEEE MAGNET, 37(4), 2001, pp. 1992-1994
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
1992 - 1994
Database
ISI
SICI code
0018-9464(200107)37:4<1992:GMIBMB>2.0.ZU;2-U
Abstract
We present experimental results for hybrid ferromagnet/semiconductor device s in which 2D electrons propagate through sub-micron width magnet barriers. Magnetoresistances, MR, of similar to 1000% are found at low temperatures and similar to1% at room temperature. We compared the measured behavior wit h numerical calculations and give the conditions needed to achieve large ro om temperature MR.