Infrared absorption from Charge Density Waves in magnetic manganites

Preprint

9 October 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9810121

Abstract

The infrared absorption of charge density waves coupled to a magnetic background is first observed in two manganites La{1-x}Ca{x}MnO{3} with x = 0.5 and x = 0.67. In both cases a BCS-like gap 2 Delta (T), which for x=0.5 follows the hysteretic ferro-antiferromagnetic transition, fully opens at a finite T{0} < T{Neel}, with 2 Delta(T{0})/kT{c} close to 5. These results may also explain the unusual coexistence of charge ordering and ferromagnetism in La{0.5}Ca{0.5}MnO{3}.

Keywords

CHARGE DENSITY WAVES
ABSORPTION OF CHARGE
INFRARED ABSORPTION
ANTIFERROMAGNETIC
CHARGE ORDERING
FERROMAGNETISM
DENSITY WAVES
MANGANITES

All Related Versions

Version 1, 1998-10-09, ArXiv
Published version: Physical Review Letters, 81 (20), 4504.

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