Title :
Optimization of interface condition for efficient spin injection in Permalloy/Cu lateral spin valve
Author :
Yakata, S. ; Ando, Y. ; Kimura, T.
Abstract :
We have investigated the cleaning condition of the Permalloy (Py) surface optimized for the efficient pure spin current injection in Py/Cu lateral spin valve structure. The efficiency of the spin injection is found to depend on the beam voltage and milling time strongly. The post annealing is also found to improve the spin injection efficiency.
Keywords :
Permalloy; annealing; copper; interface magnetism; milling; optimisation; spin polarised transport; spin valves; surface cleaning; NiFe-Cu; beam voltage; cleaning condition; interface condition optimization; milling time; permalloy surface; permalloy-Cu lateral spin valve; post annealing; spin current injection; spin injection efficiency; Pure spin current; Spin accumulation; Spin injection;
Conference_Titel :
TENCON 2010 - 2010 IEEE Region 10 Conference
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-6889-8
DOI :
10.1109/TENCON.2010.5685852
