Published 2002 | Version v1
Journal article Metadata-only

Static spin correlations induced by Zn doping in La1.79Sr0.21Cu1-yZnyO4 (y=0, 0.01)

Creators

  • 1. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)
  • 2. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
  • 3. Department of Applied Physics, Tohoku University, Sendai 980-8579 (Japan)
  • 4. Institute for Chemical Research, Kyoto University, Uji 610-0011 (Japan)
  • 5. Institute for Material Research, Tohoku University, Sendai 980-8577 (Japan)
  • 6. Institute for Solid State Physics, University of Tokyo, Tokai, Ibaraki 319-1195 (Japan)
  • 7. Low Temperature Center, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043 (Japan)

Description

Static antiferromagnetic (AF) spin correlations of overdoped La2-xSrxCuO4 (LSCO) with and without Zn doping have been studied by neutron scattering. In a single crystal of Zn-free LSCO for x=0.21, no elastic magnetic signals were observed even at 80 mK. However, elastic signals appear below 22 K in 1% Zn-doped LSCO for x=0.21, indicating that Zn stabilizes the static AF spin correlations even in the overdoped LSCO. The present study confirmed that the AF propagation wave vector is incommensurate with the lattice, characterized as QAF=(1/2-+η 1/2±ε0) with η=0.005(2) and ε=0.135(2). The appearance temperature (Tm) of the elastic signal degrades under higher-energy resolution, suggesting that the static correlations induced by Zn have a spin-glass-like nature. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1007/s003390201351

Additional details

Identifiers

DOI
10.1007/s003390201351;

Publishing Information

Journal Title
Applied Physics. A, Materials Science and Processing
Journal Volume
74
Journal Issue
1,Suppl
Journal Page Range
p. s649-s651
ISSN
0947-8396
CODEN
APAMFC

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
34024278
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANTIFERROMAGNETISM; CORRELATIONS; CUPRATES; DOPED MATERIALS; ELASTIC SCATTERING; LANTHANUM COMPOUNDS; MONOCRYSTALS; NEUTRON DIFFRACTION; SPIN GLASS STATE; SPIN ORIENTATION; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; ZINC ADDITIONS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTALS; DIFFRACTION; MAGNETISM; MATERIALS; ORIENTATION; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; ZINC ALLOYS

Optional Information

Notes
With 3 figs., 14 refs.