Reduced size of ordered moments of a quasi 1d antiferromagnet Sr{sub 2}CuO{sub 3}
- Columbia Univ., New York, NY (United States). Dept. of Physics; and others
The quasi one-dimensional antiferromagnet Sr{sub 2}CuO{sub 3} exhibits Neel order of Cu{sup 2+} moments (S = 1/2) at T{sub N} = 5.41(1) K, as demonstrated by (1) almost resolution-limited magnetic Bragg reflections in neutron scattering measurements, and (2) spontaneous muon spin precession in zero-field muon spin relaxation ({mu}SR) measurements. The temperature dependence of the order parameters are consistent between the two experimental techniques. From the neutron data, the authors obtained an upper-limit for the ordered moment size of {approximately} 0.06 {mu}{sub B}. This indicates a significant moment reduction from quantum fluctuations.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); New Energy and Industrial Technology Development Organization, Tokyo (Japan); Japan Society for the Promotion of Science, Tokyo (Japan)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 373917
- Report Number(s):
- BNL--63339; ON: DE96014897
- Country of Publication:
- United States
- Language:
- English
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