The nanoscale phase separation in hole-doped manganites
نویسندگان
چکیده
1 Spin Superstructure Project (ERATO-SSS), Japan Science and Technology Agency (JST), AIST Central 4, Tsukuba 305-8562, Japan 2 Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan, and CREST, JST, Kawaguchi, Saitama 332-0012, Japan ERATO multiferroics project, JST, c/o Department of Applied Physics , University of Tokyo, Tokyo 113-8656, Japan Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan Correlated Electron Research Center (CERC), AIST Central 4, Tsukuba 305-8562, Japan
منابع مشابه
Field Effect and Magnetically Induced Capacitive Tuning in Hole Doped La1-xSrxMnO3
Electrostatic modulation of interface conduction between semiconductors and insulating oxides is the foundation of semiconductor technology. This field effect concept can be applied on complex oxides, such as high temperature superconductors and colossal magnetoresistive manganites, in order to create new electronic and magnetic phases. Competition and coexistence of multiple nanoscale phases m...
متن کاملStriped multiferroic phase in double-exchange model for quarter-doped manganites.
The phase diagram of quarter-hole-doped perovskite manganites is investigated using the double-exchange model. An exotic striped type-II multiferroic phase, where 25% of the nearest-neighbor spin couplings are orthogonal to each other, is found in the narrow-bandwidth region. Comparing with the spiral-spin ordering phase of undoped manganites, the multiferroic Curie temperature of the new phase...
متن کاملCoexistence of long-ranged charge and orbital order and spin-glass state in single-layered manganites with weak quenched disorder
The relationship between orbital and spin degrees of freedom in the single-crystals of the hole-doped Pr1−xCa1+xMnO4, 0.3 ≤ x ≤ 0.7, has been investigated by means of acmagnetometry and charge transport. We show that in an intermediate underdoped region, with 0.35 ≤ x < 0.5, the “orbital-master spin-slave” relationship commonly observed in half-doped manganites does not take place. The long-ran...
متن کاملMagnetic field induced metastability in the self-doped manganites
We observe an interesting scenario of field induced metastabilities in the resistivity measurements. The resistivity exhibits a bifurcation of zero-field cooled and field-cooled (FC) temperature dependence below the paramagnetic to ferromagnetic transition (Tc). The clear evidence of inverse thermal hysteresis of resistivity is observed under FC condition in between 85 and 200 K, indicating the...
متن کاملCoulomb interactions and nanoscale electronic inhomogeneities in manganites.
We study electronic inhomogeneities in manganites using simulations on a microscopic model with Coulomb interactions amongst two electronic fluids-one localized (polaronic), the other extended-and dopant ions. The long range Coulomb interactions frustrate phase separation induced by the large on site repulsion between the fluids. A single phase ensues which is inhomogeneous at a nanoscale, but ...
متن کامل