Universal relationship between giant magnetoresistance and anisotropic magnetoresistance in spin valve multilayers

B. H. Miller; Branko P. Stojković; E. D. Dahlberg

doi:10.1016/S0375-9601(99)00166-8

Universal relationship between giant magnetoresistance and anisotropic magnetoresistance in spin valve multilayers

B. H. Miller
, Branko P. Stojković
, E. D. Dahlberg

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the spin-up and spin-down electrons, seen in the anisotropic magnetoresi stance. We find that the difference of the GMR in the two configurations, when expressed in terms of the sheet conductance, displays a nearly universal behavior as a function of GMR. On interpreting the results within the Boltzmann transport formalism we demonstrate the importance of bulk scattering for GMR.

Original language	English (US)
Pages (from-to)	294-298
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	256
Issue number	4
DOIs	https://doi.org/10.1016/S0375-9601(99)00166-8
State	Published - 1999

Bibliographical note

Funding Information:
We wish to thank A. Balatsky for useful conversations. This work has been supported by the US Department of Energy and by the AFOSR under grant no. AF/FA9620-92-J-0185.

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@article{996047e61f2548fa846aaad1a627f89b,

title = "Universal relationship between giant magnetoresistance and anisotropic magnetoresistance in spin valve multilayers",

abstract = "We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the spin-up and spin-down electrons, seen in the anisotropic magnetoresi stance. We find that the difference of the GMR in the two configurations, when expressed in terms of the sheet conductance, displays a nearly universal behavior as a function of GMR. On interpreting the results within the Boltzmann transport formalism we demonstrate the importance of bulk scattering for GMR.",

author = "Miller, \{B. H.\} and Stojkovi{\'c}, \{Branko P.\} and Dahlberg, \{E. D.\}",

note = "Funding Information: We wish to thank A. Balatsky for useful conversations. This work has been supported by the US Department of Energy and by the AFOSR under grant no. AF/FA9620-92-J-0185.",

year = "1999",

doi = "10.1016/S0375-9601(99)00166-8",

language = "English (US)",

volume = "256",

pages = "294--298",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

issn = "0375-9601",

publisher = "Elsevier B.V.",

number = "4",

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TY - JOUR

T1 - Universal relationship between giant magnetoresistance and anisotropic magnetoresistance in spin valve multilayers

AU - Miller, B. H.

AU - Stojković, Branko P.

AU - Dahlberg, E. D.

N1 - Funding Information: We wish to thank A. Balatsky for useful conversations. This work has been supported by the US Department of Energy and by the AFOSR under grant no. AF/FA9620-92-J-0185.

PY - 1999

Y1 - 1999

N2 - We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the spin-up and spin-down electrons, seen in the anisotropic magnetoresi stance. We find that the difference of the GMR in the two configurations, when expressed in terms of the sheet conductance, displays a nearly universal behavior as a function of GMR. On interpreting the results within the Boltzmann transport formalism we demonstrate the importance of bulk scattering for GMR.

AB - We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the spin-up and spin-down electrons, seen in the anisotropic magnetoresi stance. We find that the difference of the GMR in the two configurations, when expressed in terms of the sheet conductance, displays a nearly universal behavior as a function of GMR. On interpreting the results within the Boltzmann transport formalism we demonstrate the importance of bulk scattering for GMR.

UR - https://www.scopus.com/pages/publications/0000436301

UR - https://www.scopus.com/pages/publications/0000436301#tab=citedBy

U2 - 10.1016/S0375-9601(99)00166-8

DO - 10.1016/S0375-9601(99)00166-8

M3 - Article

AN - SCOPUS:0000436301

SN - 0375-9601

VL - 256

SP - 294

EP - 298

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 4

ER -

Universal relationship between giant magnetoresistance and anisotropic magnetoresistance in spin valve multilayers

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