sup 35 Cl NMR study of spin dynamics in Sr sub 2 CuO sub 2 Cl sub 2

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.5756· OSTI ID:7272106

Borsa, F ^[1]; Corti, M; Goto, T; Rigamonti, A ^[2]; Johnston, D C; Chou, F C ^[3]

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1. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States) Dipartimento di Fisica A. Volta,'' Universita di Pavia, I-27100 Pavia (Italy)
2. Dipartimento di Fisica A. Volta,'' Universita di Pavia, I-27100 Pavia (Italy)
3. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)

Measurements of the {sup 35}Cl nuclear-spin--lattice relaxation rate (NSLR) are reported for Sr{sub 2}CuO{sub 2}Cl{sub 2} around the antiferromagnetic transition temperature {ital T}{sub {ital N}}=260{plus minus}0.5 K. The temperature dependence of the Cu{sup 2+} spin correlation length {xi}({ital T}) is obtained indirectly by using the conventional description of NSLR and scaling arguments and compared with the {xi}({ital T}) obtained in La{sub 2}CuO{sub 4} by neutron scattering. In both systems {xi}({ital T}) follows the two-dimensional Heisenberg behavior renormalized by quantum fluctuations except close to {ital T}{sub {ital N}} where a crossover to a power-law {ital T} dependence is observed in Sr{sub 2}CuO{sub 2}Cl{sub 2}.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 7272106
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:10; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETIC MATERIALS
CHALCOGENIDES
CHLORIDES
CHLORINE 35
CHLORINE COMPOUNDS
CHLORINE ISOTOPES
COPPER COMPOUNDS
COPPER OXIDES
HALIDES
HALOGEN COMPOUNDS
ISOTOPES
LIGHT NUCLEI
MAGNETIC MATERIALS
MATERIALS
NEEL TEMPERATURE
NMR SPECTRA
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
RELAXATION
SPECTRA
SPIN-LATTICE RELAXATION
STABLE ISOTOPES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE