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Cited by 889

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Structural effects on the magnetic and transport properties of perovskiteA1−xAx′MnO3(x=0.25,0.30)

Radaelli, P. G., Iannone, G., Marezio, M., Hwang, H. Y., Cheong, S-W., Jorgensen, J. D., Argyriou, D. N.·1997·Physical Review B
DOI 10.1103/physrevb.56.8265
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Abstract

The evolution of the structural properties of ${A}_{1\ensuremath{-}x}{A}_{x}^{\ensuremath{'}}{\mathrm{MnO}}_{3}$ was determined as a function of temperature, average $A$-site radius $〈{r}_{A}〉,$ and applied pressure for the ``optimal'' doping range $x=0.25,$ 0.30, by using high-resolution neutron powder diffraction. The metal-insulator transition, which can be induced both as a function of temperature and of $〈{r}_{A}〉,$ was found to be accompanied by significant structural changes. Both the paramagnetic charge-localized phase, which exists at high temperatures for all values of $〈{r}_{A}〉,$ and the spin-canted ferromagnetic charge-ordered phase, which is found at low temperatures for low values of $〈{r}_{A}〉,$ are characterized by large metric distortions of the ${\mathrm{MnO}}_{6}$ octahedra. These structural distortions are mainly incoherent with respect to the space-group symmetry, with a significant coherent component only at low $〈{r}_{A}〉.$ These distortions decrease abruptly at the transition into the ferromagnetic metal phase. These observations are consistent with the hypothesis that, in the insulating phases, lattice distortions of the Jahn-Teller type, in addition to spin scattering, provide a charge-localization mechanism. The evolution of the average structural parameters indicates that the variation of the electronic bandwidth is the driving force for the evolution of the insulator-to-metal transition at ${T}_{C}$ as a function of ``chemical'' and applied pressure.

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Metadata

Authors
Radaelli, P. G., Iannone, G., Marezio, M., Hwang, H. Y., Cheong, S.-W., Jorgensen, J. D., & Argyriou, D. N.
Venue
Physical Review B
Publisher
American Physical Society (APS)
Published
1997-10-01
Volume
56
Issue
13
Pages
8265-8276
ISSN
  • 0163-1829 (ISSN-L)
  • 1095-3795
DOI
10.1103/physrevb.56.8265
OpenAlex
W2074973493
Cited by
889
References
13
FWCI
29.32
Type
journal article
Language
en
Open access
closed

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