NMR and local-density-approximation evidence for spiral magnetic order in the chain cuprate LiCu2O2 / Gippius AA,Morozova EN,Moskvin AS,Zalessky AV,Bush AA,Baenitz M,Rosner H,Drechsler SL // PHYSICAL REVIEW B. - 2004. - V. 70, l. 2.

ISSN/EISSN:

1098-0121 / нет данных

Type:

Article

Abstract:

We report on Li-6,Li-7 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-7 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.

Author keywords:

COMPOUND LICU2O2; COPPER; STATE; SYSTEMS; CRYSTAL

DOI:

10.1103/PhysRevB.70.020406

Web of Science ID:

ISI:000222996600007

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	JUL
Publisher	AMERICAN PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	020406
Keywords-Plus	COMPOUND LICU2O2; COPPER; STATE; SYSTEMS; CRYSTAL
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Gippius, Andrey/D-1139-2010 Alexandr, Bush/R-2287-2016 Baenitz, Michael/E-4085-2016
ORCID-Numbers	Alexandr, Bush/0000-0003-3990-9847
Number-of-Cited-References	19
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	19
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	842IH