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Impact of bicritical fluctuation on magnetocaloric phenomena in perovskite manganites
H. Sakai, Y. Taguchi, Y. Tokura
Variation of magnetocaloric (MC) effects has been systematically investigated for colossal magnetoresistive (CMR) manganites R0.6Sr0.4MnO3 (R=La-Gd). As the one-electron bandwidth…
Electrons doped in cubic perovskite SrMnO3: isotropic metal versus chainlike ordering of Jahn-Teller polarons
H. Sakai, S. Ishiwata, D. Okuyama +5
Single crystals of electron-doped SrMnO3 with a cubic perovskite structure have been systematically investigated as the most canonical (orbital-degenerate) double-exchange system,…
Spectral dependence of photoinduced spin precession in DyFeO3
Ryugo Iida, Takuya Satoh, Tsutomu Shimura +4
Spin precession was nonthermally induced by an ultrashort laser pulse in orthoferrite DyFeO3 with a pump-probe technique. Both circularly and linearly polarized pulses led to spin…
Observation of the Magnon Hall Effect
Y. Onose, T. Ideue, H. Katsura +3
The Hall effect usually occurs when the Lorentz force acts on a charge current in a conductor in the presence of perpendicular magnetic field. On the other hand, neutral quasi-part…
Microwave imaging of mesoscopic percolating network in a manganite thin film
Keji Lai, Masao Nakamura, Worasom Kundhikanjana +4
Many unusual behaviors in complex oxides are deeply associated with the spontaneous emergence of microscopic phase separation. Depending on the underlying mechanism, the competing…
Isothermal remanent magnetization and the spin dimensionality of spin glasses
R. Mathieu, M. Hudl, P. Nordblad +5
The isothermal remanent magnetization is used to investigate dynamical magnetic properties of spatially three dimensional spin glasses with different spin dimensionality (Ising, XY…
Polaronic behavior of photoelectron spectra of Fe3O4 revealed by both hard X-ray and extremely low energy photons
Masato Kimura, Hidenori Fujiwara, Akira Sekiyama +14
Hard X-ray and extremely low energy bulk-sensitive photoelectron spectroscopy has been performed in the temperature range of 100-330 K for Fe3O4. In the high temperature phase just…