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Magnetism and superconductivity in cuprate heterostructures studied by low energy μSR


Wojek, B M; Morenzoni, E; Eshchenko, D G; Suter, A; Prokscha, T; Koller, E; Treboux, E; Fischer, O; Keller, H (2009). Magnetism and superconductivity in cuprate heterostructures studied by low energy μSR. Physica B: Condensed Matter, 404(5-7):720-723.

Abstract

eterostructures consisting of magnetic and superconducting layers juxtaposed to each other are ideal systems to investigate the interplay of the two order parameters and possible interlayer coupling. We used the low energy muon spin rotation technique to study magnetic field distributions at different implantation depths in tri-layered films composed of 75 nm thick YBa2Cu3O7-δ layers enclosing a 50 nm thick barrier layer of PrBa2Cu3O7-var epsilon. The PrBa2Cu3O7-var epsilon layer shows the known antiferromagnetic ordering of the Cu and Pr moments, whereas our measurements indicate the formation of a regular vortex lattice in the YBa2Cu3O7-δ layers if an external field is applied perpendicular to the film.

Abstract

eterostructures consisting of magnetic and superconducting layers juxtaposed to each other are ideal systems to investigate the interplay of the two order parameters and possible interlayer coupling. We used the low energy muon spin rotation technique to study magnetic field distributions at different implantation depths in tri-layered films composed of 75 nm thick YBa2Cu3O7-δ layers enclosing a 50 nm thick barrier layer of PrBa2Cu3O7-var epsilon. The PrBa2Cu3O7-var epsilon layer shows the known antiferromagnetic ordering of the Cu and Pr moments, whereas our measurements indicate the formation of a regular vortex lattice in the YBa2Cu3O7-δ layers if an external field is applied perpendicular to the film.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:15 April 2009
Deposited On:17 Apr 2009 07:41
Last Modified:05 Apr 2016 12:57
Publisher:Elsevier
ISSN:0921-4526
Publisher DOI:https://doi.org/10.1016/j.physb.2008.11.189

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