Incommensurate helical magnetic order in LiCu{sub 2}O{sub 2} and NaCu{sub 2}O{sub 2} quasi-one-dimensional compounds

Journal Article · Sun Jul 15 00:00:00 EDT 2007 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776107070187· OSTI ID:21075805

Moskvin, A S ^[1]; Morozova, E N ^[2]; Okhotnikov, K S ^[1]

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1. Ural State University (Russian Federation)
2. Moscow State University (Russian Federation)

The results of the measurements of the {sup 6,7}Li and {sup 23}Na nuclear magnetic resonance (NMR) and {sup 63,65}Cu nuclear quadrupole resonance in LiCu{sub 2}O{sub 2} and NaCu{sub 2}O{sub 2} quasi-one-dimensional compounds with a spin chains in the paramagnetic and magnetically ordered states are presented. The shape of the NMR line below T{sub c} = 24 and 13 K for LiCu{sub 2}O{sub 2} and NaCu{sub 2}O{sub 2}, respectively, is characteristic of the incommensurate static modulation of the local magnetic field matching with the incommensurate spiral modulation of the magnetic moments. The differences in the shape of the NMR spectra of {sup 23}Na and {sup 7}Li are discussed in terms of the features of the crystal structure of LiCu{sub 2}O{sub 2} and NaCu{sub 2}O{sub 2}.

• OSTI ID: 21075805
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 105, Issue 1; Other Information: DOI: 10.1134/S1063776107070187; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER 63
COPPER 65
CRYSTAL STRUCTURE
CUPRATES
LITHIUM 6
LITHIUM 7
LITHIUM COMPOUNDS
MAGNETIC FIELDS
MAGNETIC MOMENTS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEAR QUADRUPOLE RESONANCE
PARAMAGNETISM
SODIUM 23
SODIUM COMPOUNDS
SPIN
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K