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Large positive magnetoresistance in Cr/Ag/Cr trilayers (1997)

Verbanck, G. ; Temst, K. ; Mae, K. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 70 (1997), S. 1477-1479

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: Large positive magnetoresistance (LPMR) effects have been measured at temperatures T〈100 K in epitaxial Cr/Ag/Cr trilayers grown by molecular beam epitaxy. Compared to single Ag films, the magnetoresistance at 4.2 K is enhanced by nearly two orders of magnitude reaching values up to 120% in a field of 8 Tesla. This behavior is related to a drastic modification of the electron scattering at the Ag interfaces due to the presence of the buffer and cap Cr layers. The LPMR curves measured at different temperatures demonstrate a scaling behavior typical for electron transport in two-dimensional systems. The magnitude of the LPMR is a function of temperature and residual resistance ratio and is influenced by the direction of the applied magnetic field. © 1997 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.118567

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