Magnetic pinning effects of epitaxial LaxSr12xMnO3 nanostructured thin films on YBa2Cu3O72d layers - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Applied Physics Année : 2012

Magnetic pinning effects of epitaxial LaxSr12xMnO3 nanostructured thin films on YBa2Cu3O72d layers

C. Tiusan
V. Galluzzi
  • Fonction : Auteur
G. Celentano
  • Fonction : Auteur
S. Popa
  • Fonction : Auteur

Résumé

The present paper presents the effects of a nanostructured, ferromagnetic La1 xSrxMnO3(LSMO) thin film on the pinning characteristics of an epitaxial YBa2Cu3O7(YBCO) thin film deposited on top. Ordered arrays of LSMO grains were obtained upon growing the film on a terraced (001) SrTiO3 substrate. The analyses of magnetic measurements revealed the presence of a complex vortex pinning mechanism within the YBCO film. With respect to a reference single YBCO layer, an additional pinning potential was observed. Its temperature evolution suggests that a magnetic pinning mechanism is responsible for improved pinning characteristics in the high temperature and field region. Based on the morphology of the underlying LSMO buffer, a strong pinning force is expected to arise due to the anti-dot formations, where a high magnetization gradient exists.
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Dates et versions

hal-00786489 , version 1 (08-02-2013)

Identifiants

Citer

T. Petrisor, M.S. Gabor, C. Tiusan, V. Galluzzi, G. Celentano, et al.. Magnetic pinning effects of epitaxial LaxSr12xMnO3 nanostructured thin films on YBa2Cu3O72d layers. Journal of Applied Physics, 2012, 112, pp.053919-1-053919-7. ⟨10.1063/1.4748049⟩. ⟨hal-00786489⟩
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