NMR and local-density-approximation evidence for spiral magnetic order in the chain cuprate LiCu2O2

Gippius, A. A.; Morozova, E. N.; Moskvin, A. S.; Zalessky, A. V.; Bush, A. A.; Baenitz, M.; Rosner, H.; Drechsler, S. -L.

doi:10.1103/PhysRevB.70.020406

Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/132579

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:	Gippius, A. A., Morozova, E. N., Moskvin, A. S., Zalessky, A. V., Bush, A. A., Baenitz, M., … Drechsler, S.-L. (2004). NMR and local-density-approximation evidence for spiral magnetic order in the chain cuprateLiCu2O2. Physical Review. B, Condensed Matter and Materials Physics, 70(2). doi:10.1103/physrevb.70.020406
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://elar.urfu.ru/handle/10995/132579
Access:	info:eu-repo/semantics/openAccess All Open Access; Green Open Access
SCOPUS ID:	37649032400
WOS ID:	000222996600007
PURE ID:	8359119
ISSN:	0163-1829
DOI:	10.1103/PhysRevB.70.020406
Appears in Collections:	Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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