Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites

descriptionPublicationkeyboard_double_arrow_right Article 15 Jun 2001 English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 87 (issn: 0031-9007, eissn: 1079-7114,

Copyright policy )

Authors: R D, Averitt; A I, Lobad; C, Kwon; S A, Trugman; V K, Thorsmølle; A J, Taylor;

doi: 10.1103/physrevlett.87.017401

pmid: 11461494

Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites

- Summary
- Metrics

Abstract

Ultrafast picosecond measurements of optically induced changes in the absolute conductivity (0.4-1.0 THz) of La0.7M0.3MnO3 thin films ( M = Ca, Sr) from 10 K to approximately 0.9 Tc reveal a two-component relaxation. A fast, approximately 2 ps, conductivity decrease arises from an optically induced modification of the effective phonon temperature. The slower component, related to spin-lattice relaxation, has a lifetime that increases upon approaching Tc from below in accordance with an increasing spin specific heat. We show that, for T<

Related Organizations

California State University, Long Beach
United States
Los Alamos National Laboratory
United States

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	147
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 1%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%