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

scholarly journals Field-induced magnetic structures inTb2Ti2O7at low temperatures: From spin-ice to spin-flip structures

2010 ◽  
Vol 82 (17) ◽  
Author(s):  
A. P. Sazonov ◽  
A. Gukasov ◽  
I. Mirebeau ◽  
H. Cao ◽  
P. Bonville ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Spin Ice ◽  
Magnetic Structures ◽  
Spin Flip

scholarly journals Effect of Oxygen in Low Temperature Boron and Phosphorus Diffusion Gettering of Iron in Czochralski-Grown Silicon

2009 ◽  
Vol 156-158 ◽  
pp. 395-400 ◽  
Author(s):  
Ville Vähänissi ◽  
Antti Haarahiltunen ◽  
H. Talvitie ◽  
M.I. Asghar ◽  
Marko Yli-Koski ◽  
...  
Keyword(s):  
Low Temperature ◽  
Sheet Resistance ◽  
Low Temperatures ◽  
Minority Carrier ◽  
Diffusion Length ◽  
Minority Carrier Diffusion Length ◽  
Thermal Budget ◽  
Phosphorus Diffusion ◽  
Oxygen Precipitation ◽  
Effect Of Oxygen

Low temperature boron and phosphorous diffusion gettering (BDG and PDG) of iron in Czochralski-grown silicon were experimentally studied. Differences and similarities between the gettering techniques were clarified by using intentionally iron contaminated wafers emphasizing especially the effect of oxygen. Experiments showed that the surprisingly high gettering effects of BDG could be explained by B-Si precipitates. Oxygen precipitation was seen to decrease minority carrier diffusion length after long gettering at low temperatures in both BDG and PDG. In the case of BDG oxygen precipitation affected more as a higher thermal budget was needed to obtain similar sheet resistance to that of PDG. According to experiments the efficiency of BDG can not be concluded from the sheet resistance, whereas the efficiency of PDG can. This has practical influences in a process control environment.

scholarly journals Determination of Cobalt Spin-Diffusion Length in Co/Cu Multilayered Heterojunction Nanocylinders Based on Valet–Fert Model

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 218
Author(s):  
Saeko Mizoguchi ◽  
Masamitsu Hayashida ◽  
Takeshi Ohgai
Keyword(s):  
Layer Thickness ◽  
Giant Magnetoresistance ◽  
Spin Diffusion ◽  
Diffusion Length ◽  
Anodized Aluminum ◽  
Anodized Aluminum Oxide ◽  
Electrochemical Growth ◽  
Potential Condition ◽  
Spin Diffusion Length ◽  
Sputter Deposited

Anodized aluminum oxide (AAO) nanochannels of diameter, D, of ~50 nm and length, L, of ~60 µm (L/D: approx. 1200 in the aspect ratio), were synthesized and applied as an electrode for the electrochemical growth of Co/Cu multilayered heterojunction nanocylinders. We synthesized numerous Co/Cu multilayered nanocylinders by applying a rectangular pulsed potential deposition method. The Co layer thickness, tCo, ranged from ~8 to 27 nm, and it strongly depended on the pulsed-potential condition for Co layers, ECo. The Cu layer thickness, tCu, was kept at less than 4 nm regardless of ECo. We applied an electrochemical in situ contact technique to connect a Co/Cu multilayered nanocylinder with a sputter-deposited Au thin layer. Current perpendicular-to-plane giant magnetoresistance (CPP-GMR) effect reached up to ~23% in a Co/Cu multilayered nanocylinder with ~4760 Co/Cu bilayers (tCu: 4 nm and tCo: 8.6 nm). With a decrease in tCo, (ΔR/Rp)−1 was linearly reduced based on the Valet–Fert equation under the condition of tF > lFsf and tN < lNsf. The cobalt spin-diffusion length, lCosf, was estimated to be ~12.5 nm.

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

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.

Spin diffusion length and giant magnetoresistance in spin-valve tri-layers

2000 ◽  
Vol 284-288 ◽  
pp. 1247-1248 ◽  
Author(s):  
Yoshiaki Hashimoto ◽  
Shingo Katsumoto ◽  
Chizuko Murayama ◽  
Yasuhiro Iye
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Diffusion ◽  
Diffusion Length ◽  
Spin Valve ◽  
Spin Diffusion Length

Investigation of diffusion length and lifetime in lead chalcogenides by electron‐beam‐induced‐current measurements at low temperatures

1984 ◽  
Vol 56 (2) ◽  
pp. 362-367 ◽  
Author(s):  
A. Eisenbeiss ◽  
H. Heinrich ◽  
A. Jakubowicz ◽  
W. Maurer ◽  
L. Palmetshofer ◽  
...  
Keyword(s):  
Electron Beam ◽  
Low Temperatures ◽  
Diffusion Length ◽  
Induced Current ◽  
Lead Chalcogenides ◽  
Electron Beam Induced Current

scholarly journals Spin-Flip Diffusion Length in 5d Transition Metal Elements: A First-Principles Benchmark

2021 ◽  
Vol 126 (19) ◽  
Author(s):  
Rohit S. Nair ◽  
Ehsan Barati ◽  
Kriti Gupta ◽  
Zhe Yuan ◽  
Paul J. Kelly
Keyword(s):  
Transition Metal ◽  
First Principles ◽  
Diffusion Length ◽  
Metal Elements ◽  
Spin Flip ◽  
Transition Metal Elements

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
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