Effects of magnetization on hole localization and MnO₆ octahedra disorder in hole-doped lanthanum manganese perovskites [electronic resource]
The authors review the distortions of the MnO₆ octahedra reduced by magnetization in hole-doped lanthanum manganese perovskites. The systems they consider include the colossal magnetoresistance (CMR) samples La{sub 1-x}Ca{sub x}MnO₃ (x = 0.21, 0.25, 0.30), La{sub 0.76}Ba{sub 0.33}MnO₃, and a poorer...
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Online Access |
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| 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,
1998.
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| Subjects: |
MARC
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| 088 | |a LA-UR--98-2531 | ||
| 088 | |a CONF-9806129-- | ||
| 088 | |a DE99001242 | ||
| 245 | 0 | 0 | |a Effects of magnetization on hole localization and MnO₆ octahedra disorder in hole-doped lanthanum manganese perovskites |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Dept. of Energy ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 1998. | ||
| 300 | |a 11 p. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 12/31/1998. | ||
| 500 | |a "LA-UR--98-2531" | ||
| 500 | |a "CONF-9806129--" | ||
| 500 | |a "DE99001242" | ||
| 500 | |a Euroconference on polarons: condensation, pairing, magnetism, Erice (Italy), 9-17 Jun 1998. | ||
| 500 | |a Brosha, E.L.; Booth, C.H.; Kwei, G.H.; Neumeier, J.J.; Bridges, F. | ||
| 520 | 3 | |a The authors review the distortions of the MnO₆ octahedra reduced by magnetization in hole-doped lanthanum manganese perovskites. The systems they consider include the colossal magnetoresistance (CMR) samples La{sub 1-x}Ca{sub x}MnO₃ (x = 0.21, 0.25, 0.30), La{sub 0.76}Ba{sub 0.33}MnO₃, and a poorer quality La{sub 0.76}Pb{sub 0.33}MnO₃ sample. They also report preliminary work on three samples of oxygen-doped LaMnO{sub 3+δ and a lanthanum-deficient La{sub 0.9}MnO₃ sample. They find the same exponential relationship between the removal of the distortion and the sample magnetization in the Ba- and Pb-doped CMR samples as was found previously for the Ca doped samples. The MnO₆ distortion in the oxygen-doped materials is found to slightly reduce below the magnetic transition, although much less so than in the CMR samples. Above T{sub C}, the antiferromagnetic LaMnO{sub 3.006} sample shows a softer temperature dependence of the Mn-O bond length distribution broadening. Surprisingly, even this sample shows deviations from thermal (Debye) behavior near T{sub N}, possibly due to FM coupling within MnO planes. | |
| 536 | |b W-7405-ENG-36. | ||
| 650 | 7 | |a Manganese Oxides. |2 local. | |
| 650 | 7 | |a Calcium Oxides. |2 local. | |
| 650 | 7 | |a Lanthanum Oxides. |2 local. | |
| 650 | 7 | |a Crystal Structure. |2 local. | |
| 650 | 7 | |a Magnetization. |2 local. | |
| 650 | 7 | |a Barium Oxides. |2 local. | |
| 650 | 7 | |a Lead Oxides. |2 local. | |
| 650 | 7 | |a Transition Temperature. |2 local. | |
| 650 | 7 | |a Magnetoresistance. |2 local. | |
| 650 | 7 | |a Polarons. |2 local. | |
| 650 | 7 | |a Jahn-teller Effect. |2 local. | |
| 650 | 7 | |a Lattice Parameters. |2 local. | |
| 650 | 7 | |a Materials Science. |2 edbsc. | |
| 710 | 2 | |a Los Alamos National Laboratory. |4 res. | |
| 710 | 2 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 2 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |e E 1.99:CONF-9806129-- |h Superintendent of Documents classification |i web |n 1 |