Stretched exponential behavior in remanent lattice striction of a (La,Pr)$_{1.2}$Sr$_{1.8}$Mn$_{2}$O$_{7}$ bilayer manganite single crystal

M. Matsukawa; M. Chiba; R. Suryanarayanan; M. Apostu; A. Revcolevschi; S. Nimori; N. Kobayashi

doi:10.1103/PhysRevB.70.132402

paper

Stretched exponential behavior in remanent lattice striction of a (La,Pr) $_{1.2}$ Sr $_{1.8}$ Mn $_{2}$ O $_{7}$ bilayer manganite single crystal

arXiv:cond-mat/0405693 · doi:10.1103/PhysRevB.70.132402

Abstract

We have investigated the time dependence of remanent magnetostriction in a (La,Pr) $_{1.2}$ Sr $_{1.8}$ Mn $_{2}$ O $_{7}$ single crystal, in order to examine the slow dynamics of lattice distortion in bilayered manganites. A competition between double exchange and Jahn-Teller type orbital-lattice interactions results in the observed lattice profile following a stretched exponential function. This finding suggests that spatial growth of the local lattice distortions coupled with e $_{g}$ -electron orbital strongly correlates with the appearance of the field-induced CMR effect.

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References in corpus (5)

Colossal Magnetoresistant Materials: The Key Role of Phase Separation
Double Exchange Alone Does Not Explain the Resistivity of $L a_{1 - x} S r_{x} M n O_{3}$
Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in $L a_{1 - x} A_{x} M n O_{3}$
Unusual magnetic relaxation behavior in La0.5Ca0.5MnO3 and Nd0.5Sr0.5MnO3
Anisotropic phonon conduction and lattice distortions in CMR-type bilayer manganite (La $_{1 - z}$ Pr $_{z}$ ) $_{1.2}$ Sr $_{1.8}$ Mn $_{2}$ O $_{7}$ (z=0,0.2,0.4 and 0.6) single crystals

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Stretched exponential behavior in remanent lattice striction of a (La,Pr)1.2​Sr1.8​Mn2​O7​ bilayer manganite single crystal

Abstract

References in corpus (5)

Cited by in corpus (5)

Stretched exponential behavior in remanent lattice striction of a (La,Pr) $_{1.2}$ Sr $_{1.8}$ Mn $_{2}$ O $_{7}$ bilayer manganite single crystal