Anomalous pressure effect on the remanent lattice striction of a (La,Pr)SrMnO bilayered manganite single crystal
arXiv:cond-mat/0609055 · doi:10.1103/PhysRevB.75.014427
Abstract
We have studied the pressure effect on magnetostriction, both in the -plane and along the c-axis, of a (La,Pr)SrMnO bilayered manganite single crystal over the temperature region where the field-induced ferromagnetic metal (FMM) transition takes place. For comparison, we have also examined the pressure dependence of magnetization curves at the corresponding temperatures. The applied pressure reduces the critical field of the FMM transition and it enhances the remanent magnetostriction. An anomalous pressure effect on the remanent lattice relaxation is observed and is similar to the pressure effect on the remanent magnetization along the c-axis. These findings are understood from the view point that the double-exchange interaction driven FMM state is strengthened by application of pressure.
7 pages,7 figures
References in corpus (9)
- Colossal Magnetoresistant Materials: The Key Role of Phase Separation
- Double Exchange Alone Does Not Explain the Resistivity of
- Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in
- Charge Ordering and Phase Competition in the Layered Perovskite Lasr2mn2o7
- Glass Transition in the Polaron Dynamics of CMR Manganites
- Spin and orbital ordering in double-layered manganites
- Anisotropic phonon conduction and lattice distortions in CMR-type bilayer manganite (LaPr)SrMnO (z=0,0.2,0.4 and 0.6) single crystals
- Resistive relaxation in field-induced insulator-metal transition of a (LaPr)SrMnO bilayer manganite single crystal
- Stretched exponential behavior in remanent lattice striction of a (La,Pr)SrMnO bilayer manganite single crystal