Effect of spin-flip scattering on current-in-plane giant magnetoresistance

1998 ◽  
Vol 57 (2) ◽  
pp. 1097-1101 ◽  
Author(s):  
Jian Chen ◽  
Selman Hershfield
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Flip

Spin flip diffusion length and giant magnetoresistance at low temperatures

1994 ◽  
Vol 72 (20) ◽  
pp. 3274-3277 ◽  
Author(s):  
Q. Yang ◽  
P. Holody ◽  
S.-F. Lee ◽  
L. L. Henry ◽  
R. Loloee ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Giant Magnetoresistance ◽  
Diffusion Length ◽  
Spin Flip

EFFECT OF SPIN-FLIP SCATTERING ON CURRENT-IN-PLANE MAGNETO-TRANSPORT IN MAGNETIC MULTILAYERED STRUCTURES WITH ARBITRARY MAGNETIZATION ALIGNMENTS

2000 ◽  
Vol 14 (15) ◽  
pp. 1577-1584
Author(s):  
Y. C. TAO ◽  
J. WANG ◽  
J. G. HU
Keyword(s):  
Linear Dependence ◽  
Giant Magnetoresistance ◽  
Magnetic Films ◽  
Experimental Result ◽  
Kubo Formula ◽  
Multilayered Structures ◽  
Potential Barriers ◽  
Spin Flip ◽  
Dependent Potential ◽  
Arbitrary Magnetization

By a quantization-axis transformation, we derive an extended equation which Green's function satisfies in the presence of spin-flip scattering, and then apply the Kubo formula to study the variation of the giant magnetoresistance (GMR) in magnetic multilayered structures with the angle θ between the magnetizations of succesive magnetic films. It is found that in the presence of spin-flip scattering and spin-dependent potential barriers, the linear dependence of GMR on sin 2(θ/2) can be approximately obtained, which is qualitatively consistent with the experimental result.

How to isolate effects of spin‐flip scattering on giant magnetoresistance in magnetic multilayers (invited)

1994 ◽  
Vol 75 (10) ◽  
pp. 6699-6703 ◽  
Author(s):  
J. Bass ◽  
Q. Yang ◽  
S. F. Lee ◽  
P. Holody ◽  
R. Loloee ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Magnetic Multilayers ◽  
Spin Flip

Giant Magnetoresistance Properties in CoFe/Cu Multilayers

1998 ◽  
Vol 22 (4_2) ◽  
pp. 537-540 ◽  
Author(s):  
Y. Seyama ◽  
M. Iijima ◽  
A. Tanaka ◽  
M. Oshiki
Keyword(s):  
Giant Magnetoresistance

A Combined Spin-Flip and IP/EA Approach for Handling Spin and Spatial Degeneracies: Application to Double Exchange Systems

2018 ◽  
Author(s):  
Shannon Houck ◽  
Nicholas Mayhall
Keyword(s):  
Single Molecule ◽  
Double Exchange ◽  
Computational Effort ◽  
Strongly Correlated ◽  
Single Molecule Magnets ◽  
New Approach ◽  
Spin Flip ◽  
Model Hamiltonian ◽  
Simultaneous Existence ◽  
Exchange Parameters

<div>Many multiconfigurational systems, such as single-molecule magnets, are difficult to study using traditional computational methods due to the simultaneous existence of both spin and spatial degeneracies. In this work, a new approach termed n-spin-flip Ionization Potential/Electron Affinity (<i>n</i>SF-IP or <i>n</i>SF-EA) is introduced which combines the spin-flip method of Anna Krylov with particle-number changing IP/EA methods. We demonstrate the efficacy of the approach by applying it to the strongly-correlated N<sub>2</sub><sup>+</sup> as well as several double exchange systems. We also demonstrate that when these systems are well-described by a double exchange model Hamiltonian, only 1SF-IP/EA is required to extract the double exchange parameters and accurately predict energies for the low-spin states. This significantly reduces the computational effort for studying such systems. The effects of including additional excitations (using a RAS-<i>n</i>SF-IP/EA scheme) are also examined, with particular emphasis on hole and particle excitations.</div>

A Combined Spin-Flip and IP/EA Approach for Handling Spin and Spatial Degeneracies: Application to Double Exchange Systems

2018 ◽  
Author(s):  
Shannon Houck ◽  
Nicholas Mayhall
Keyword(s):  
Single Molecule ◽  
Double Exchange ◽  
Computational Effort ◽  
Strongly Correlated ◽  
Single Molecule Magnets ◽  
New Approach ◽  
Spin Flip ◽  
Model Hamiltonian ◽  
Simultaneous Existence ◽  
Exchange Parameters

<div>Many multiconfigurational systems, such as single-molecule magnets, are difficult to study using traditional computational methods due to the simultaneous existence of both spin and spatial degeneracies. In this work, a new approach termed n-spin-flip Ionization Potential/Electron Affinity (<i>n</i>SF-IP or <i>n</i>SF-EA) is introduced which combines the spin-flip method of Anna Krylov with particle-number changing IP/EA methods. We demonstrate the efficacy of the approach by applying it to the strongly-correlated N<sub>2</sub><sup>+</sup> as well as several double exchange systems. We also demonstrate that when these systems are well-described by a double exchange model Hamiltonian, only 1SF-IP/EA is required to extract the double exchange parameters and accurately predict energies for the low-spin states. This significantly reduces the computational effort for studying such systems. The effects of including additional excitations (using a RAS-<i>n</i>SF-IP/EA scheme) are also examined, with particular emphasis on hole and particle excitations.</div>

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