T. Arima

Publications498
h-index57
Citations17,835
Highly Influential Citations195
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Magnetic control of ferroelectric polarization
TLDR
The discovery of ferroelectricity in a perovskite manganite, TbMnO3, where the effect of spin frustration causes sinusoidal antiferromagnetic ordering and gigantic magnetoelectric and magnetocapacitance effects are found.
Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4
Measurement of the quantum-mechanical phase in quantum matter provides the most direct manifestation of the underlying abstract physics. We used resonant x-ray scattering to probe the relative phases…
Distorted perovskite witheg1configuration as a frustrated spin system
The evolution of spin- and orbital-ordered states has been investigated for a series of insulating perovskites $R{\mathrm{MnO}}_{3}$…
Ferroelectric polarization flop in a frustrated magnet MnWO4 induced by a magnetic field.
TLDR
This result demonstrates that an electric polarization flop can be induced by a magnetic field in a simple system without rare-earth 4f moments.
Structural and magnetoelectric properties of Ga 2 − x Fe x O 3 single crystals grown by a floating-zone method
Lattice-structural, magnetic, and magnetoelectric (ME) properties have been investigated for single crystals of prototypical polar ferrimagnet…
Magnetic-field-induced ferroelectric state in DyFeO3.
TLDR
Exchange striction working between adjacent Fe3+ and Dy3+ layers with the respective layered antiferromagnetic components is proposed as the origin of the ferroelectric polarization in the multiferroic phase.
Magnetic reversal of the ferroelectric polarization in a multiferroic spinel oxide.
TLDR
Ferroelectric transition has been detected in a ferrimagnetic spinel oxide of CoCr2O4 upon the transition to the conical spin order below 25 K, indicating the clamping of the ferromagnetic and ferroelectric domain walls.
Ferroelectricity Induced by Proper-Screw Type Magnetic Order(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
  • T. Arima
  • Materials Science, Chemistry
  • 25 June 2007
A novel type of magnetic origin of ferroelectric polarization is proposed. In crystals with triclinic, monoclinic, or trigonal (rhombohedral) symmetries, the proper screw type of magnetic ordering…
Variation of electronic structure in La 1-xSr xMnO 3 (0≤x≤0.3) as investigated by optical conductivity spectra
Optical conductivity spectra and their variation with temperature and doping level x have been investigated for single crystals of La{sub 1{minus}x}Sr{sub x}MnO{sub 3} (0{le}x{le}0.3). For the…
Impurity-induced transition to a Mott insulator in Sr 3 Ru 2 O 7
The electrical, magnetic, and structural properties of Sr$_3$(Ru$_{1-x}$Mn$_x$)$_2$O$_7$ (0 $\leq x \leq$ 0.2) are investigated. The parent compound Sr$_3$Ru$_2$O$_7$ is a paramagnetic metal,…
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