Static magnetic order in electron-superconductor related compounds

Luke, G. M. ; Le, L. P. ; Sternlieb, B. J. ; Uemura, Y. J. ; Brewer, J. H. ; Kadono, R. ; Kiefl, R. F. ; Kreitzman, S. R. ; Riseman, T. M. ; Maple, M. B. ; Seaman, C. L. ; Kakurai, K. ; Uchida, S. ; Takagi, H. ; Tokura, Y. ; Hidaka, Y. ; Murakami, T. ; Gopalakrishnan, J. ; Sleight, A. W. ; Subramanian, M. A. (1989) Static magnetic order in electron-superconductor related compounds Physica C: Superconductivity, 162-164 . pp. 825-826. ISSN 0921-4534

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Using the technique of muon spin relaxation, we have shown that the parent compounds Ln2CuO4-y where [Ln=(Nd, SmorPr)] of the new electron-superconductors exhibit static magnetic order below 300 K. No static magnetic order with any appreciable moment was observed above 4 K in superconducting samples of Nd2-xCexCuO4-y for X > .155. Measurements on a single crystal of Nd2CuO4-y show magnetic order with a sharp onset at 250 K, followed by a number of changes in the ordered spin direction at T ~65 K and T ~33 K.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:12736
Deposited On:11 Nov 2010 09:03
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