Domain-wall and reverse-domain superconducting states of a Pb thin-film bridge on a ferromagnetic BaFe_{12}O_{19} single crystal

Autor:	Werner, R., Aladyshkin, A. Yu., Guenon, S., Fritzsche, J., Nefedov, I. M., Moshchalkov, V. V., Kleiner, R., Koelle, D.
Rok vydání:	2011
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. B 84, 020505(R) (2011)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.84.020505
Popis:	We report on imaging of the nonuniform superconducting states in a Pb thin film bridge on top of a ferromagnetic BaFe_{12}O_{19} single crystal with a single straight domain wall along the center of the bridge by low-temperature scanning laser microscopy. We have visualized domain wall superconductivity (DWS) close to the critical temperature of Pb, when the Pb film above the domain wall acts as a superconducting path for the current. The evolution of the DWS signal with temperature and the external-field-driven transition from DWS to reverse domain superconductivity was visualized. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1105.6048 Zobrazit plný text záznamu View this record from Arxiv