Chiral phenomena in magnetic multilayers

This chapter discusses the spin-transfer effect, which is described as the transfer of the spin angular momentum between the conduction electrons and the magnetization of the ferromagnet that occurs due to the conservation of the spin angular momentum. L. Berger, who introduced the concept in 1984, considered the exchange interaction between the conduction electron and the localized magnetic moment, and predicted that a magnetic domain wall can be moved by flowing the spin current. The spin-transfer effect was brought into the limelight by the progress in microfabrication techniques and the discovery of the giant magnetoresistance effect in magnetic multilayers. Berger, at the same time, separately studied the spin-transfer torque in a system similar to Slonczewski’s magnetic multilayered system and predicted spontaneous magnetization precession.

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First-Principles Quantum Transport Modeling of Spin-Transfer and Spin-Orbit Torques in Magnetic Multilayers

Handbook of Materials Modeling ◽

10.1007/978-3-319-50257-1_112-1 ◽

2018 ◽

pp. 1-35 ◽

Cited By ~ 2

Author(s):

Branislav K. Nikolić ◽

Kapildeb Dolui ◽

Marko D. Petrović ◽

Petr Plecháč ◽

Troels Markussen ◽

...

Keyword(s):

Quantum Transport ◽

First Principles ◽

Magnetic Multilayers ◽

Spin Transfer ◽

Transport Modeling ◽

Spin Orbit

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Modelling of the Peltier effect in magnetic multilayers

Journal of Applied Physics ◽

10.1063/1.4942163 ◽

2016 ◽

Vol 119 (7) ◽

pp. 073906 ◽

Cited By ~ 4

Author(s):

Isaac Juarez-Acosta ◽

Miguel A. Olivares-Robles ◽

Subrojati Bosu ◽

Yuya Sakuraba ◽

Takahide Kubota ◽

...

Keyword(s):

Magnetic Multilayers ◽

Peltier Effect

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Thermal Gating of Magnon Exchange in Magnetic Multilayers with Antiferromagnetic Spacers

Physical Review Letters ◽

10.1103/physrevlett.126.227203 ◽

2021 ◽

Vol 126 (22) ◽

Author(s):

D. M. Polishchuk ◽

Yu. O. Tykhonenko-Polishchuk ◽

Ya. M. Lytvynenko ◽

A. M. Rostas ◽

O. V. Gomonay ◽

...

Keyword(s):

Magnetic Multilayers

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Anomalous magnetoresistance of magnetic multilayers

Journal of Physics Condensed Matter ◽

10.1088/0953-8984/12/39/102 ◽

2000 ◽

Vol 12 (39) ◽

pp. L621-L626

Author(s):

R Seviour ◽

S Sanvito ◽

C J Lambert ◽

J H Jefferson

Keyword(s):

Magnetic Multilayers

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Structural Characterization of Epitaxial GMR Magnetic Multilayers and Spin Valves Grown by Sputter Deposition

MRS Proceedings ◽

10.1557/proc-614-f4.7.1 ◽

2000 ◽

Vol 614 ◽

Author(s):

H. Geng ◽

R. Loloee ◽

J.W. Heckman ◽

J. Bass ◽

W.P. Pratt ◽

...

Keyword(s):

High Resolution ◽

Epitaxial Growth ◽

Magnetic Multilayers ◽

Sputter Deposition ◽

Dc Magnetron Sputtering ◽

Cu Films ◽

Electron Backscatter ◽

High Resolution Tem ◽

Fcc Structure

ABSTRACTEpitaxial Cu/Py/FeMn and (Cu/Co)×20 GMR magnetic multilayers were grown on single crystal (011) Nb that was deposited on (1121) Al2O3 substrates by dc magnetron sputtering. Electron backscatter patterns (EBSPs) revealed that the Cu films display two twin variants, corresponding to two stacking sequences of {111} planes in fcc. The epitaxial orientation relationship between the bcc Nb and both fcc Cu variants was the Nishiyama-Wasserman (N-W) relationship. Conventional TEM observations revealed epitaxial growth for both the Cu/Py/FeMn and (Cu/Co)×20 multilayers. High-resolution TEM confirmed epitaxial growth of close packed (011) Nb on (1120) Al2O3 substrates with [111]Nb∥[0001]Al2O3. Numerous small twins were observed in the Cu near the Cu-Nb interface of the Cu/Py/FeMn multilayer. In the Cu/Co multilayer, the growth planes of the Cu and Co were found to be {100} instead of the expected close-packed {111} planes of the fcc structure.

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