[sup 35]Cl nuclear-magnetic-resonance study of magnetic ordering in Sr[sub 2]CuO[sub 2]Cl[sub 2] single crystal

Journal Article · Sun May 15 04:00:00 EDT 1994 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.356706· OSTI ID:7072385

Corti, M; Borsa, F ^[1]; Miller, L L ^[2]; Rigamonti, A ^[1]

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

[sup 35]Cl nuclear-magnetic-resonance (NMR) and relaxation measurements have been performed in a Sr[sub 2]CuO[sub 2]Cl[sub 2] single crystal as a function of orientation between the external magnetic field [bold H][sub 0] and the tetragonal [bold c] axis. The onset is found of an anisotropic inhomogeneous broadening of the NMR line without paramagnetic shift starting below about 320 K. The broadening is strongly temperature dependent and it increases with increasing [bold H][sub 0]. The relaxation rate [ital T][sup [minus]1][sub 1], on the other hand, diverges at [ital T][sub [ital N]][congruent]260 K in agreement with previous results in powder sample. It is suggested that the observed broadening is due to the onset at [ital T][gt][ital T][sub [ital N]] of a spontaneous nonzero thermal average of the Cu[sup 2+] moment lying in the [ital a]-[ital b] plane.

• OSTI ID: 7072385
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 75:10; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHLORIDES
CHLORINE 35
CHLORINE COMPOUNDS
CHLORINE ISOTOPES
COPPER CHLORIDES
COPPER COMPOUNDS
COPPER HALIDES
CRYSTALS
HALIDES
HALOGEN COMPOUNDS
ISOTOPES
LIGHT NUCLEI
MAGNETIC PROPERTIES
MONOCRYSTALS
NMR SPECTRA
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RELAXATION
SPECTRA
STABLE ISOTOPES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TRANSITION ELEMENT COMPOUNDS