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The static and dynamic lattice effects in La1−xCaxMnO3

✍ Scribed by P. Dai; Jiandi Zhang; H.A. Mook; F. Foong; S.-H. Liou; P.A. Dowben; E.W. Plummer

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
484 KB
Volume
100
Category
Article
ISSN
0038-1098

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✦ Synopsis

The structural and magnetic behavior of the perovskite insulator La,&ao,rMn03

were studied as a function of temperature from 15 to 300 K by neutron powder diffraction. Although this compound shows an anomalous response of the lattice parameters around T, (150 K), the behavior of the oxygen/manganese Debye-Waller factors is in clear contrast to its "colossal magnetoresistance" (CMR) counterpart Lao,&ae,3sMnO3. We speculate that the difference is intimately associated with the metal-insulator transition in the latter compound.

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