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Spin wave scattering and interface magnetism in superconducting-ferromagnet-superconducting hybrid structures
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10.1063/1.3076544
/content/aip/journal/jap/105/7/10.1063/1.3076544
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3076544
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of the resistance in applied fields up to 8 T, (YBCO/LSMO/YBCO structures). Note the onset temperature of the electronic inhomogeneity, . The abrupt drop in at is a consistent signature of the pseudogap that is present above the superconducting transition temperature . This abrupt drop is strongly reduced at fields of 4 and 8 T, as shown by the arrows. A sketch of the sample geometry chosen for the tunneling of the spin-polarized quasiparticles along the -axis is shown in the inset. The film thicknesses were 300 and 50 nm for the YBCO layers and the LSMO, respectively.

Image of FIG. 2.
FIG. 2.

The pseudogap closing field and follow a simple Zeeman scale, . Here is the Bohr magnetron constant and is the Boltzmann constant.

Image of FIG. 3.
FIG. 3.

MR effect in YBCO/LSMO/YBCO structures in fields up to 5 T at 140 K . Note that the magnetization vectors switch from antiparallel to parallel at some critical field around 0.7 T.

Image of FIG. 4.
FIG. 4.

MR effect in YBCO/LSMO/YBCO structures in fields up to 8 T at 240 K . The magnetization vectors switch fully from antiparallel to parallel at some critical field around 2 T (marked by the arrow), and the MR becomes constant.

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/content/aip/journal/jap/105/7/10.1063/1.3076544
2009-04-10
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spin wave scattering and interface magnetism in superconducting-ferromagnet-superconducting hybrid structures
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3076544
10.1063/1.3076544
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