Investigation of spin-polarized carrier injection effect in YBa2Cu3O7/SrTiO3/La0.67Sr 0.33MnO3 and YBa2Cu3O7/La0.67Sr0.33MnO 3 heterostructures

B. Vengalis, V. Plausinaitiene, A. Abrutis, Z. Saltyte, R. Butkute, V. Petrauskas, Jon-Paul Maria, G. Bonfait

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We report preparation and electrical properties of the YBa2Cu3O7/SrTiO3(d ≅ 5.0 nm)/La0.67Sr0.33MnO3 (YBCO/STO/LSMO) and YBCO/LSMO multilayer structures grown heteroepitaxially on LaAlO3(100) substrates by single source pulsed injection MOCVD. The heterostructures were patterned in a cross-strip geometry to perform electrical measurements at T = 78÷300 K under magnetic field μ0H = 0÷16 T using 4-probe dc method. Suppression of a supercurrent of the patterned YBCO stripes was indicated for the YBCO/LSMO heterostructure by injecting tunneling spin-polarized current from the underlying FM layer. The transport effects were modelled taking into account current redistribution in the adjacent conducting HTS and FM layers.

Original languageEnglish (US)
JournalJournal De Physique. IV : JP
Issue number11
StatePublished - Dec 1 2001
EventInternatinal Conference on Thin Film Deposition of Oxide Multilayers Hybrid Structures TEDOM 2 - Austrans, France
Duration: Oct 18 2001Oct 19 2001

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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