Low-temperature transport properties in a bilayered manganite
- 1 August 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 60 (5), 3370-3374
- https://doi.org/10.1103/physrevb.60.3370
Abstract
Low-temperature magnetotransport properties have been investigated for a single crystal of with a bilayered structure to reveal the ground-state nature of the quasi-two-dimensional ferromagnetic state. The specific heat measured in a magnetic field indicates a finite density of state of electrons at the Fermi level with seemingly least mass renormalization, which are subject to the weak-localization effect as evidenced by the dependence of the conductivity. The highly anisotropic magnetoresistance at low temperatures with respect to the field direction arises from the spin-valve effect due to the ferromagnetic-domain rotation as well as from the field destruction of the localization effect, proving a quasi-two-dimensional diffusive metal as the ground state.
Keywords
This publication has 26 references indexed in Scilit:
- Critical Behavior of the Metal-Insulator Transition inPhysical Review Letters, 1998
- Direct Observation of Charge and Orbital Ordering inPhysical Review Letters, 1998
- Fermi-liquid-to-polaron crossover. II. Double exchange and the physics of colossal magnetoresistancePhysical Review B, 1996
- Dynamic Jahn-Teller Effect and Colossal Magnetoresistance inPhysical Review Letters, 1996
- Giant magnetoresistance of manganese oxides with a layered perovskite structureNature, 1996
- Anomalous Magnetotransport Properties of Pr1-xCaxMnO3Journal of the Physics Society Japan, 1995
- Anomalous Variation of Optical Spectra with Spin Polarization in Double-Exchange Ferromagnet:Physical Review Letters, 1995
- Double Exchange Alone Does Not Explain the Resistivity ofPhysical Review Letters, 1995
- Effects of Double Exchange in Magnetic CrystalsPhysical Review B, 1960
- Interaction between the-Shells in the Transition Metals. II. Ferromagnetic Compounds of Manganese with Perovskite StructurePhysical Review B, 1951