Zero-field μ⁺SR study of the collossal magnetoresistance material La{sub 0.67}Ca{sub 0.33}MnO₃ [electronic resource]
Zero-field μ⁺SR and resistivity experiments on La{sub 0. 67}Ca{sub 0.33}MnO₃ powder shows that the ferromagnetic transition temperature (Tc = 274 K) and resistivity peak temperature coincide to within 1K, about 10 K higher that T{sub c} determined from the bulk magnetization. The sublattice magnetiz...
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Online Access |
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| Corporate Authors: | , |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1996.
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| Subjects: |
| Summary: | Zero-field μ⁺SR and resistivity experiments on La{sub 0. 67}Ca{sub 0.33}MnO₃ powder shows that the ferromagnetic transition temperature (Tc = 274 K) and resistivity peak temperature coincide to within 1K, about 10 K higher that T{sub c} determined from the bulk magnetization. The sublattice magnetization v{sub mu}(T) is well described for T {<=} T{sub c} by (1-T/T{sub c}){sup beta}, where β = 0.345 {+-} 0.015. Unusual relaxational dynamics suggest a wide distribution of Mn-ion correlation times. These results are discussed in terms of the effects of polarons on the spin and charge dynamics. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 04/01/1996. "LA-UR--96-1233" "CONF-9604128--1" "DE96009003" Muon spin rotation meeting, Nikko (Japan), 15-19 Apr 1996. Le, L.P.; Hundley, M.F.; Heffner, R.H. |
| Physical Description: | 8 p. |