Superconductivity and gaint negative magnetoresistance in YBa2Cu3O7/La0.67Ba0.33MnO3 superlattices
Applied physics letters. Bd. 66. 1995 S. 2564 - 2566
Erscheinungsjahr: 1995
Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)
Sprache: Englisch
Doi/URN: 10.1063/1.113168
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Inhaltszusammenfassung
It is shown that the recently discovered giant negative magnetoresistance (GMR) effects in ferromagnetic La1?xMxMnO3 (M=Ca,Sr,Ba) are compatible with the existence of high Tc superconductivity in c?axis oriented YBa2Cu3O7/La0.67Ba0.33MnO3 superlattices. From magnetoresistivity measurements we deduce that above Tc the giant GMR persists up to room temperature. Below Tc the superlattices show a quasi?two?dimensional superconductivity of the YBa2Cu3O7 layers coexisting with magnetism in the La0....It is shown that the recently discovered giant negative magnetoresistance (GMR) effects in ferromagnetic La1?xMxMnO3 (M=Ca,Sr,Ba) are compatible with the existence of high Tc superconductivity in c?axis oriented YBa2Cu3O7/La0.67Ba0.33MnO3 superlattices. From magnetoresistivity measurements we deduce that above Tc the giant GMR persists up to room temperature. Below Tc the superlattices show a quasi?two?dimensional superconductivity of the YBa2Cu3O7 layers coexisting with magnetism in the La0.67Ba0.33MnO3 layers. © 1995 American Institute of Physics.» weiterlesen» einklappen
Autoren
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
