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23 papers · 1 filter
Field-induced carrier delocalization in the strain-induced Mott insulating state of an organic superconductor
Yoshitaka Kawasugi, Hiroshi M. Yamamoto, Naoya Tajima +3
We report the influence of the field effect on the dc resistance and Hall coefficient in the strain-induced Mott insulating state of an organic superconductor -(BEDT-TTF)C…
Epitaxial-strain effect on charge/orbital order in Pr0.5Ca0.5MnO3 films
D. Okuyama, M. Nakamura, Y. Wakabayashi +7
Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5Ca0.5MnO3 epitaxial thin films fabricated on (LaAlO3)0.3-(SrAl0.5Ta0.5O3)0.…
Evidence for Oxygen Holes due to d-p Rehybridization in Thermoelectric Sr_{1-x}Rh_{2}O_{4}
Y. Ishida, T. Baba, R. Eguchi +8
Soft-x-ray photoemission and absorption spectroscopies are employed to investigate the electronic structures of Sr_{1-x}Rh_{2}O_{4}. Similarly to the layered cobaltates such as Na_…
Lattice-form dependent orbital shape and charge disproportionation in charge- and orbital-ordered manganites
D. Okuyama, Y. Tokunaga, R. Kumai +3
The orbital shapes and charge disproportionations at nominal Mn and Mn sites for the charge- and orbital-ordered phases have been studied on half-doped manganites Pr(…
Electric-dipole active two-magnon excitation in {\textit{ab}} spiral spin phase of a ferroelectric magnet GdTbMnO
N. Kida, Y. Yamasaki, R. Shimano +2
A broad continuum-like spin excitation (1--10 meV) with a peak structure around 2.4 meV has been observed in the ferroelectric spiral spin phase of GdTbMnO…
Metal-insulator transition in superlattices
Shuai Dong, Rong Yu, Seiji Yunoki +3
The modulation of charge density and spin order in (LaMnO)/(SrMnO) (=1-4) superlattices is studied via Monte Carlo simulations of the double-exchange model. G…