150% magnetoresistance in sputtered Fe/Cr(100) superlattices

Abstract

Giant magetoresistance in epitaxial sputtered Fe/Cr(211) superlattices (abstract) J. Appl. Phys. 75, 7080 (1994); 10.1063/1.356734 Structure and giant magnetoresistance in sputtered and MBE grown Fe/Cr superlattices (invited) (abstract)

Antiferromagnetic dipolar ordering in[Co2MnGe∕V]Nmultilayers

“…This is in good agreement with GMR measurements on [Co 2 MnGe/V] N multilayers [74]. The GMR values are far below the values obtained in transition metal multilayer system, which can be as large as 150% at room temperature [75].…”

Structural and magneto-transport properties of electrodeposited bismuth nanowires

“…In this work, we report the successful fabrication of semimetallic Bi nanowires in which we have observed positive magnetoresistance ͑MR͒ as high as 300% at low temperatures and 70% at room temperature, with a quasilinear field dependence. In previous studies of negative GMR in metallic nanostructures, 11,12 the effect size is generally on the order of a few to a few tens of percent, except in nearly perfect superlattices which show the largest GMR effect of about 150% at 4.2 K. 13 The MR effect in the present semimetallic nanostructures not only has a much larger magnitude, but also is characteristically different.…”

Very large magnetoresistance in electrodeposited single-crystal Bi thin films (invited)

“…The discovery in 1988 of giant MR ͑GMR͒ in antiferromagnetically coupled magnetic multilayers ͑e.g., Co/Cu͒, 2,3 and subsequently in other geometries such as granular systems ͑e.g., Co particles in a Cu matrix͒, 4,5 has attracted worldwide attention. The term GMR now refers to MR effects due to spin-dependent scattering, which can be ''giant'' ͑as much as 150% in ideal cases͒ 6 or small ͑of order 10% in most cases͒. In the multilayer geometry, GMR varies as cos , where is the angle between the magnetizations of the two FM layers.…”