ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
We report magnetoresistance in ferromagnet / superconductor / ferromagnet structuresmade of La0.7Ca0.3MnO3 and YBa2Cu3O7 in the current in plane (CIP) geometry when thetemperature is fixed along the superconducting transition and the magnetic field is swept in anhysteresis loop sequence. We describe experiments changing the geometry of current versus field.We find that the shape and height of the magnetoresistance peaks is not modified no matter thefield is directed parallel or perpendicular to the current. This excludes interpretations in terms ofspontaneous vortices or anisotropic magnetoresistance of the ferromagnetic layers and supportsthe view that the magnetoresistance phenomenon originates at the spin dependent transport ofquasiparticles transmitted from the ferromagnetic electrodes into the superconductor
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.45.2545.pdf
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