Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111083
Title: NMR and Local-Density-Approximation Evidence for Spiral Magnetic Order in the Chain Cuprate LiCu2O2
Authors: Gippius, A. A.
Morozova, E. N.
Moskvin, A. S.
Zalessky, A. V.
Bush, A. A.
Baenitz, M.
Rosner, H.
Drechsler, S. -L.
Issue Date: 2004
Publisher: American Physical Society (APS)
Citation: NMR and Local-Density-Approximation Evidence for Spiral Magnetic Order in the Chain Cuprate LiCu2O2 / A. A. Gippius, E. N. Morozova, A. S. Moskvin et al. — DOI 10.1103/PhysRevLett.99.156404 // Physical Review B - Condensed Matter and Materials Physics. — 2004. — Vol. 70. — Iss. 2. — P. 20406-1-020406-4. — 020406.
Abstract: We report on Li nuclear magnetic resonance measurements of the spin-chain compound LiCu2O2 in the paramagnetic and magnetically ordered states. Below 24 K the NMR line shape shows a clear signature of incommensurate (IC) static modulation of the local magnetic field consistent with an IC spiral modulation of the magnetic moments. Li NMR reveals strong phason-like dynamical fluctuations extending well below 24 K. A series of phase transitions at 24.2, 22.5, and 9 K is observed. Local density approximation based calculations of exchange integrals reveal a large in-chain frustration leading to a magnetical spiral.
Keywords: COPPER DERIVATIVE
LITHIUM
METAL OXIDE
ANISOTROPY
ARTICLE
DIPOLE
MAGNETIC FIELD
MATHEMATICAL ANALYSIS
MOLECULAR INTERACTION
NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
URI: http://hdl.handle.net/10995/111083
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 37649032400
ISSN: 0163-1829
DOI: 10.1103/PhysRevLett.99.156404
metadata.dc.description.sponsorship: We thank A. Vasiliev, J. Richter, J. Málek, W. Ku, and H. Eschrig for fruitful discussions. We appreciate support by Grant Nos. MD-249.2003.02, RFBR 04-03-32876, RFBR 02-02-16369 [A.G.], INTAS 01-0654, CRDF RU-P1-2599-MO-04 [A.G. and E.M.] CRDF REC-005, E 02-3.4-392, UR.01.01.042, RFBR 01-02-96404 [A.M.], DFG (SPP 1073 [S.-L.D.] and Emmy-Noether-program [H.R.]).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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