Low frequency spin dynamics in undoped and Sr-doped La[sub 2]CuO[sub 4]
Journal Article
·
· Physical Review Letters; (United States)
- Science and Technology Center for Superconductivity and Department of Physics, Loomis Laboratory of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinoiis 61801-3080 (United States) Department of Chemistry and Materials Research Laboratory, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801-3080 (United States) Department of Chemistry, Faculty of Science, Kyoto University, Kyoto 606 (Japan)
We report [sup 63]Cu NQR and NMR studies of low frequency spin dynamics in the paramagnetic state of La[sub 2[minus][ital x]]Sr[sub [ital x]]CuO[sub 4] for 0[le][ital x][le]0.15 in the temperature range up to 900 K. For [ital x]=0, the results were in good agreement with the theoretical predictions for an [ital S]=1/2 two-dimensional quantum Heisenberg antiferromagnet. For Sr-doped samples, we found that [ital d] spins exhibit, above 300 K, the characteristic behavior expected for a local moment system even for the highest-[ital T][sub [ital c]] phase La[sub 1.85]Sr[sub 0.15]CuO[sub 4], and cross over to an itinerant regime before superconductivity sets in.
- DOE Contract Number:
- FG02-91ER45439
- OSTI ID:
- 7078347
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:7; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
NMR-NQR study of the crossover from the spin-glass to the superconducting phase in La{sub 2{minus}x}Sr{sub x}CuO{sub 4}
Systematic study of (La sub 1 minus x Gd sub x ) sub 1. 85 Sr sub 0. 15 CuO sub 4 (0 le x le 1): Structure, superconductivity, resistivity, and magnetic properties
Spin dynamics in a two-dimensional disordered S=(1)/(2) Heisenberg paramagnet from {sup 63}Cu NQR relaxation in Zn-doped La{sub 2}CuO{sub 4}
Journal Article
·
Tue Apr 20 00:00:00 EDT 1999
· International Journal of Modern Physics B
·
OSTI ID:687441
Systematic study of (La sub 1 minus x Gd sub x ) sub 1. 85 Sr sub 0. 15 CuO sub 4 (0 le x le 1): Structure, superconductivity, resistivity, and magnetic properties
Journal Article
·
Fri Sep 01 00:00:00 EDT 1989
· Physical Review (Section) B: Condensed Matter; (USA)
·
OSTI ID:5423389
Spin dynamics in a two-dimensional disordered S=(1)/(2) Heisenberg paramagnet from {sup 63}Cu NQR relaxation in Zn-doped La{sub 2}CuO{sub 4}
Journal Article
·
Fri Jan 31 23:00:00 EST 1997
· Physical Review, B: Condensed Matter
·
OSTI ID:450387
Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALLOYS
ANTIFERROMAGNETISM
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DOPING
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEISENBERG MODEL
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC RESONANCE
MAGNETISM
MATHEMATICAL MODELS
NUCLEAR MAGNETIC RESONANCE
NUCLEAR QUADRUPOLE RESONANCE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RESONANCE
STRONTIUM ADDITIONS
STRONTIUM ALLOYS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALLOYS
ANTIFERROMAGNETISM
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DOPING
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEISENBERG MODEL
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC RESONANCE
MAGNETISM
MATHEMATICAL MODELS
NUCLEAR MAGNETIC RESONANCE
NUCLEAR QUADRUPOLE RESONANCE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RESONANCE
STRONTIUM ADDITIONS
STRONTIUM ALLOYS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS