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- Title
SPIN INJECTION INTO YBa[sub2]Cu[sub3]O[subx] FILMS.
- Authors
Mikheenko, P.; Allsworth, M.D.; Chakalov, R.; Colclough, M.S.; Muirhead, C.M.
- Abstract
We report a range of experiments designed to test the efficacy of spin polarized injection from colossal magnetoresistive material (CMR) into high temperature superconductors (HTS). These include traditional transport measurements, studies of CMR/YBCO contacts, measurements of penetration depth and studies of the effect of spin-injection on the critical state of square thin films and rings. We have used pulsed currents to minimize heating and have made comparisons with the non-magnetic homologue of CMR LaNiO[sub 3]. Our experiments provide evidence that there is a measurable effect, but that it is small and mainly confined to 10-20 nm of the YBCO surface. Current gain of about 0.2 has been observed.
- Subjects
HIGH temperature superconductors; POLARIZATION (Nuclear physics); MAGNETORESISTANCE
- Publication
Modern Physics Letters B, 2003, Vol 17, Issue 10-12, p491
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S0217984903005524