Spin transport enhancement by controlling the Ag growth in lateral spin valves

The role of the growth conditions onto the spin transport properties of silver (Ag) have been studied by using lateral spin valve structures. By changing the deposition conditions of Ag from polycrystalline to epitaxial growth, we have observed a considerable enhancement of the spin diffusion length...

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Bibliographic Details
Published inJournal of physics. D, Applied physics Vol. 48; no. 21; pp. 215003 - 4
Main Authors Isasa, Miren, Villamor, Estitxu, Fallarino, Lorenzo, Idigoras, Olatz, Suszka, Anna K, Tollan, Christopher, Berger, Andreas, Hueso, Luis E, Casanova, Fèlix
Format Journal Article
LanguageEnglish
Published IOP Publishing 06.06.2015
Subjects
Channels
Deposition
Diffusion length
Epitaxial growth
epitaxial silver
Grain boundaries
Grain size
lateral spin valves
Silver
spin diffusion length
Spin valves
spintronics
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Summary:The role of the growth conditions onto the spin transport properties of silver (Ag) have been studied by using lateral spin valve structures. By changing the deposition conditions of Ag from polycrystalline to epitaxial growth, we have observed a considerable enhancement of the spin diffusion length, from to  nm. This enhancement in the spin diffusion length is closely related to the grain size of the Ag channel, which is 19   ±   6 nm for polycrystalline Ag and 41   ±   4 nm for epitaxial Ag. This study shows that diminishing the grain boundary contribution to the spin relaxation mechanism is an effective way to improve the spin diffusion length in metallic nanostructures.
Bibliography:JPhysD-104589.R1
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/48/21/215003