GIANT MAGNETORESISTANCE IN FE CR SUPERLATTICES WITH VERY THIN FE LAYERS

Authors
SCHAD R POTTER CD BELIEN P VERBANCK G MOSHCHALKOV VV BRUYNSERAEDE Y
Citation
R. Schad et al., GIANT MAGNETORESISTANCE IN FE CR SUPERLATTICES WITH VERY THIN FE LAYERS, Applied physics letters, 64(25), 1994, pp. 3500-3503
Citations number
22
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
25
Year of publication
1994
Pages
3500 - 3503
Database
ISI
SICI code
0003-6951(1994)64:25<3500:GMIFCS>2.0.ZU;2-1
Abstract
Carefully tailored Fe/Cr epitaxial superlattices with extremely thin F e layers have been grown on MgO(100) by molecular beam epitaxy. The lo w-angle x-ray spectra reveal the presence of sharp interfaces down to an Fe layer thickness of a few monolayers. An [Fe(4.5 angstrom)/Cr(12 angstrom)]50 superlattice shows a 220% magnetoresistance at 1.5 K, and a saturation field of 110 kOe. A further decrease of the Fe layer thi ckness produces a drastic decrease in the magnetoresistance.