The local Jahn-Teller effect in (La/Sr){sub n+1}Mn{sub n}O{sub 3n+1}
- Los Alamos National Lab., NM (United States)
- Univ. of Pennsylvania, Philadelphia, PA (United States)
Lattice polarons form an important constituent in the mechanism of magnetism and transport of the (La/Sr){sub n+1}Mn{sub n}O{sub 3n+1} (for n = 2 and {infinity}) colossal magnetoresistance manganites. The coupling of the polaronic distortions to the local Jahn-Teller (JT) effect has been characterized by the pulsed neutron pair density function (PDF) analysis. Distortions of equal magnitude to the ones found in perovskites arising from a JT effect are found in the 2-dimensional layer crystals. The coupling of the distortions to the lattice is similar in both systems suggesting that lattice polarons are formed independently to the crystal dimensionality.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Management and Administration, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 304020
- Report Number(s):
- LA-UR--98-2537; CONF-9806129--; ON: DE99001258
- Country of Publication:
- United States
- Language:
- English
Similar Records
Double degeneracy and Jahn-Teller effects in colossal-magnetoresistance perovskites
The structure of nanoscale polaron correlations in La{sub 1.2}Sr{sub 1.8}Mn{sub 2}O{sub 7}.
Local Jahn-Teller distortion in La{sub 1{minus}x}Sr{sub x}MnO{sub 3} observed by pulsed neutron diffraction
Journal Article
·
Sun Mar 31 23:00:00 EST 1996
· Physical Review, B: Condensed Matter
·
OSTI ID:280212
The structure of nanoscale polaron correlations in La{sub 1.2}Sr{sub 1.8}Mn{sub 2}O{sub 7}.
Journal Article
·
Mon Dec 31 23:00:00 EST 2001
· Phys. Rev. B
·
OSTI ID:949370
Local Jahn-Teller distortion in La{sub 1{minus}x}Sr{sub x}MnO{sub 3} observed by pulsed neutron diffraction
Journal Article
·
Wed Oct 01 00:00:00 EDT 1997
· Physical Review, B: Condensed Matter
·
OSTI ID:632651