Observation of strong spin valve effect in bulk Ca3(Ru1-xCrx)2O7

The spin-valve effect is a quantum phenomenon so far only realized in multilayer thin films or heterostructures. Here we report a strong spin-valve effect existing in bulk single crystals of Ca3(Ru1-xCrx)2O7 having an anisotropic, bilayered crystal structure. This discovery opens new avenues to unde...

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Bibliographic Details
Published in:Physical review letters 2008-01, Vol.100 (1), p.016604-016604
Main Authors: Cao, G, Durairaj, V, Chikara, S, DeLong, L E, Schlottmann, P
Format: Article
Language:English
Online Access:Get full text
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Summary:The spin-valve effect is a quantum phenomenon so far only realized in multilayer thin films or heterostructures. Here we report a strong spin-valve effect existing in bulk single crystals of Ca3(Ru1-xCrx)2O7 having an anisotropic, bilayered crystal structure. This discovery opens new avenues to understand the underlying physics of spin valves, and fully realize its potential in practical devices.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.100.016604