Two-Dimensional Magnetic and Superconducting Phases in Metal-InsulatorLa2−xSrxCuO4Superlattices Measured by Muon-Spin Rotation

Autor:	G. J. Nieuwenhuys, Andreas Suter, Ivan Božović, B. M. Wojek, Adrian Gozar, Thomas Prokscha, Hubertus Luetkens, Gennady Logvenov, Elvezio Morenzoni
Rok vydání:	2011
Předmět:	Superconductivity Materials science Condensed matter physics Condensed Matter::Superconductivity Superlattice General Physics and Astronomy Condensed Matter::Strongly Correlated Electrons Metal insulator Muon spin spectroscopy Rotation Spin (physics) Quantum fluctuation Molecular beam epitaxy
Zdroj:	Physical Review Letters. 106
ISSN:	1079-7114 0031-9007
Popis:	We show, by means of low-energy muon-spin rotation measurements, that few-unit-cells thick ${\mathrm{La}}_{2}{\mathrm{CuO}}_{4}$ layers synthesized digitally by molecular beam epitaxy are antiferromagnetically ordered. Below a thickness of about 5 ${\mathrm{CuO}}_{2}$ 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 \AA{}) to high-temperature superconducting layers, without transmitting supercurrents.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ab195e296cfa987475548b8a9789aec1 https://doi.org/10.1103/physrevlett.106.237003 Zobrazit plný text záznamu