Published October 2010 | Version v1
Journal article Metadata-only

Charge order and low frequency spin dynamics in lanthanum cuprates revealed by Nuclear Magnetic Resonance

Creators

  • 1. IFW Dresden, Institute for Solid State Research, Dresden (Germany)
  • 2. Department of Physics, University of California, Davis, CA (United States)
  • 3. Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan (China)
  • 4. Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY (United States)
  • 5. Kazan Zavoiskiy Physical-Technical Institute, Kazan (Russian Federation)

Description

We report detailed 17O, 139La, and 63,65Cu Nuclear Magnetic Resonance (NMR) and Nuclear Quadrupole Resonance (NQR) measurements in a stripe ordered La1.875Ba0.125CuO4 single crystal and in oriented powder samples of La1.8-xEu0.2SrxCuO4. We observe a partial wipe out of the 17O NMR intensity and a simultaneous drop of the 17O electric field gradient (EFG) at low temperatures where the spin stripe order sets in. In contrast, the 63,65Cu intensity is completely wiped out at the same temperature. The drop of the 17O quadrupole frequency is compatible with a charge stripe order. The 17O spin lattice relaxation rate shows a peak similar to that of the 139La, which is of magnetic origin. This peak is doping dependent and is maximal at x ∼ 1/8. (authors)

Availability note (English)

Available from doi: <http://dx.doi.org/10.1140/epjst/e2010-01299-6

Additional details

Identifiers

DOI
10.1140/epjst/e2010-01299-6;

Publishing Information

Journal Title
European Physical Journal. Special Topics
Journal Volume
188
Journal Issue
no.1
Journal Page Range
p. 89-101
ISSN
1951-6355

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
42010377
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CUPRATES; HIGH-TC SUPERCONDUCTORS; NUCLEAR MAGNETIC RESONANCE; SPIN-LATTICE RELAXATION; SUPERCONDUCTIVITY
Descriptors DEC
COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC RESONANCE; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RELAXATION; RESONANCE; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS

Optional Information

Notes
40 refs.