scholarly journals Spin injection and spin accumulation in all-metal mesoscopic spin valves

2003 ◽  
Vol 67 (8) ◽  
Author(s):  
F. J. Jedema ◽  
M. S. Nijboer ◽  
A. T. Filip, ◽  
B. J. van Wees
Keyword(s):  
Spin Injection ◽  
Spin Valves ◽  
Spin Accumulation

Enhanced spin accumulation in nano-pillar-based lateral spin valve using spin reservoir effect

2022 ◽  
Author(s):  
Xiaomin Cui ◽  
Shaojie Hu ◽  
Takashi Kimura
Keyword(s):  
Spin Diffusion ◽  
Spin Injection ◽  
Spin Valve ◽  
Spin Current ◽  
Spin Valves ◽  
Pure Spin ◽  
Spin Accumulation ◽  
Spintronic Devices ◽  
High Bias ◽  
Angle Deposition

Abstract Lateral spin valves are ideal nanostructures for investigating spin-transport physics phenomena and promoting the development of future spintronic devices owing to dissipation-less pure spin current. The magnitude of the spin accumulation signal is well understood as a barometer for characterizing spin current devices. Here, we develop a novel fabrication method for lateral spin valves based on ferromagnetic nanopillar structures using a multi-angle deposition technique. We demonstrate that the spin-accumulation signal is effectively enhanced by reducing the lateral dimension of the nonmagnetic spin channel. The obtained results can be quantitatively explained by the confinement of the spin reservoir by considering spin diffusion into the leads. The temperature dependence of the spin accumulation signal and the influence of the thermal spin injection under a high bias current are also discussed.

scholarly journals Nanosecond spin lifetimes in bottom-up fabricated bilayer graphene spin-valves with atomic layer deposited Al2O3 spin injection and detection barriers

2015 ◽  
Vol 252 (11) ◽  
pp. 2395-2400 ◽  
Author(s):  
Marc Drögeler ◽  
Frank Volmer ◽  
Maik Wolter ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Spin Injection ◽  
Atomic Layer ◽  
Bilayer Graphene ◽  
Spin Valves ◽  
Bottom Up ◽  
Spin Injection And Detection

scholarly journals Crossover from Spin Accumulation into Interface States to Spin Injection in the Germanium Conduction Band

2012 ◽  
Vol 109 (10) ◽  
Author(s):  
A. Jain ◽  
J.-C. Rojas-Sanchez ◽  
M. Cubukcu ◽  
J. Peiro ◽  
J. C. Le Breton ◽  
...  
Keyword(s):  
Conduction Band ◽  
Spin Injection ◽  
Interface States ◽  
Spin Accumulation

Effective modulation of spin accumulation using a ferromagnetic/nonmagnetic bilayer spin channel

2021 ◽  
Author(s):  
Taisei Ariki ◽  
Tatsuya Nomura ◽  
Kohei Ohnishi ◽  
Takashi Kimura
Keyword(s):  
Spin Injection ◽  
Spin Valve ◽  
Transverse Spin ◽  
Spin Accumulation ◽  
Spin Channel ◽  
Relative Angle ◽  
Channel Layer ◽  
Spin Polarized ◽  
Resistance Model ◽  
Large Spin

Abstract A lateral spin valve consisting of highly spin-polarized CoFeAl electrodes with a CoFeAl/Cu bilayer spin channel has been developed. Despite a large spin absorption into the CoFeAl capping channel layer, an efficient spin injection and detection using the CoFeAl electrodes enable us to observe a clear spin valve signal. We demonstrate that the nonlocal spin accumulation signal is significantly modulated depending on the relative angle of the magnetizations between the spin injector and absorber. The observed modulation phenomena is explained by the longitudinal and transverse spin absorption effects into the CoFeAl channel layer with the spin resistance model.

Transition from spin accumulation into interface states to spin injection in silicon and germanium conduction bands

2013 ◽  
Vol 86 (4) ◽  
Author(s):  
Abhinav Jain ◽  
Juan-Carlos Rojas-Sanchez ◽  
Murat Cubukcu ◽  
Julian Peiro ◽  
Jean-Christophe Le Breton ◽  
...  
Keyword(s):  
Spin Injection ◽  
Interface States ◽  
Spin Accumulation ◽  
Conduction Bands ◽  
Silicon And Germanium

High spin injection polarization at an elevated dc bias in tunnel-junction-based lateral spin valves

2009 ◽  
Vol 95 (2) ◽  
pp. 022519 ◽  
Author(s):  
X. J. Wang ◽  
H. Zou ◽  
L. E. Ocola ◽  
Y. Ji
Keyword(s):  
High Spin ◽  
Tunnel Junction ◽  
Spin Injection ◽  
Spin Valves ◽  
Dc Bias

Enhanced spin injection efficiency and extended spin lifetimes in graphene spin valves

2011 ◽  
Author(s):  
Wei Han ◽  
J. R. Chen ◽  
K. M. McCreary ◽  
H. Wen ◽  
R. K. Kawakami
Keyword(s):  
Spin Injection ◽  
Spin Valves ◽  
Injection Efficiency
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