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Two-Dimensional Magnetic and Superconducting Phases in Metal-Insulator La2−xSrxCuO4 Superlattices Studied by Low-Energy Muon-Spin Rotation
Universität Zürich, Switzerland; Paul Scherrer Institut, Switzerland.ORCID iD: 0000-0002-8216-5321
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2014 (English)In: Proceedings of the International Symposium on Science Explored by Ultra Slow Muon (USM2013), Physical society of Japan, 2014, Vol. 2, 010204-010204 p., 010204Conference paper, Published paper (Refereed)
Abstract [en]

We show, by means of low-energy muon-spin-rotation measurements, that few-unit-cells thick La2CuO4 layers synthesized digitally by molecular beam epitaxy are antiferromagnetically ordered. Below a thickness of about 5 CuO2 layers the long-range ordered state breaks down, and a magnetic state appears with enhanced quantum fluctuations and a reduced spin stiffness. This magnetic state can exist in close proximity (few Å) to high-temperature superconducting layers, without transmitting supercurrents. Charge-transfer effects and potential softening of the antiferromagnetic state due to the proximity to the superconducting state are discussed.

Place, publisher, year, edition, pages
Physical society of Japan, 2014. Vol. 2, 010204-010204 p., 010204
Series
JPS Conference Proceedings
Keyword [en]
low energy muons, magnetism, superconductivity, superlattices
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:kth:diva-163173DOI: 10.7566/JPSCP.2.010204OAI: oai:DiVA.org:kth-163173DiVA: diva2:799034
Conference
International Symposium on Science Explored by Ultra Slow Muon (USM2013), Matsue, Shimane, Japan, August 9-12, 2013
Note

QC 20150330

Available from: 2015-03-28 Created: 2015-03-28 Last updated: 2015-03-30Bibliographically approved

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Morenzoni, ElvezioWojek, Bastian M.

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