Giant Magnetoresistance of (001)Fe/(001)Cr Magnetic Superlattices

1988/11/21 by M. N. Baibich, J.M. Broto, A. Fert +6 · 13 citations
Physics and Astronomy · #Magnetic properties of thin films #Quantum and electron transport phenomena #Surface and Thin Film Phenomena #Magnetoresistance #Superlattice #Condensed matter physics #Giant magnetoresistance #Materials science #Electrical resistivity and conductivity #Epitaxy #Electron #Colossal magnetoresistance #Magnetic field #Physics #Nanotechnology #Layer (electronics)

paper · pdf · doi:10.1103/physrevlett.61.2472

openalex publication_date 1988/11/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We have studied the magnetoresistance of (001)Fe/(001)Cr superlattices prepared by molecularbeam epitaxy. A huge magnetoresistance is found in superlattices with thin Cr layers: For example, with t_Cr=9 \AA, at T=4.2 K, the resistivity is lowered by almost a factor of 2 in a magnetic field of 2 T. We ascribe this giant magnetoresistance to spin-dependent transmission of the conduction electrons between Fe layers through Cr layers.

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