Muon spin rotation measurements of heterogeneous field response in overdoped La2-xSrxCuO4

Journal Article · Fri Jan 01 04:00:00 EST 2010 · Physical Review. B, Condensed Matter and Materials Physics

OSTI ID:1045286

Russo, P L ^[1]; Uemura, Yasutomo J ^[2]

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1. TRIUMF
2. Columbia University

Transverse-field muon spin rotation measurements of overdoped La{sub 2-x}Sr{sub x}CuO{sub 4} reveal a large broadening of the local magnetic field distribution in response to applied field, persisting to high temperatures. The field response is approximately Curie-Weiss-like in temperature and is largest for the highest doping investigated. Such behavior is contrary to the canonical Fermi-liquid picture commonly associated with the overdoped cuprates and implies extensive heterogeneity in this region of the phase diagram. A possible explanation for the result lies in regions of staggered magnetization about dopant cations, analogous to what is argued to exist in underdoped systems.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1045286
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 1 Vol. 81; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CATIONS
CRYSTAL DEFECTS
CUPRATES
DISTRIBUTION
FERMI GAS
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETIZATION
MUON SPIN RELAXATION
PHASE DIAGRAMS
RELAXATION
SUPERCONDUCTORS