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Browse Journals & Magazines > Applied Physics Letters ...> Volume:78 Issue:3 Help

Effect of spin-polarized injection on the mixed state of YBa2Cu3O7-δ

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6 Author(s)
Mikheenko, P. ; University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom ; Colclough, M.S. ; Severac, C. ; Chakalov, R.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1341229 

We report measurements of the magnetic moment of YBa2Cu3O7-δ films when subjected to injection of short pulses of spin-polarized current from the colossal magnetoresistance (CMR) manganites La0.7Ca0.3MnO3 and La0.7Sr0.3MnO3, and unpolarized current from the nonmagnetic perovskite LaNiO3(LNO). We study relaxation from the Bean critical state, with and without current pulses. For pulses longer than 100 ms, the effect of injection is similar for all samples and is due to heating. Below 1 ms, we see a clear difference between the CMR and LNO samples and attribute this to the spin polarization of the current injected from the CMR materials. © 2001 American Institute of Physics.

Published in:
Applied Physics Letters  (Volume:78 ,  Issue: 3 )

Date of Publication: Jan 2001

Page(s):
356 - 358
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.1341229
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Jan 2001

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