4.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- RIKENJP217 papers
- The University of TokyoJP179 papers
- University of MichiganUS135 papers
- Japan Science and Technology AgencyJP81 papers
- Tokyo Institute of TechnologyJP26 papers
- Chinese Academy of SciencesCN25 papers
- Loughborough UniversityGB23 papers
- Nagoya UniversityJP23 papers
- Tsinghua UniversityCN23 papers
- University of Naples Federico IIIT22 papers
- Tohoku UniversityJP19 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT17 papers
14 papers · 2 filters
Pseudogap of metallic layered nickelate R2-xSrxNiO4 (R=Nd, Eu) crystals measured using angle-resolved photoemission spectroscopy
M. Uchida, K. Ishizaka, P. Hansmann +11
We have investigated charge dynamics and electronic structures for single crystals of metallic layered nickelates, R2-xSrxNiO4 (R=Nd, Eu), isostructural to La2-xSrxCuO4. Angle-reso…
Metal-Insulator Transition and Magnetic Order in the Pyrochlore Oxide Hg2Ru2O7
Makoto Yoshida, Masashi Takigawa, Ayako Yamamoto +1
We report results of NMR experiments on the ruthenium oxide Hg2Ru2O7 with the pyrochlore structure, which exhibits a metal-insulator transition at TMI = 107 K. In the metallic phas…
Theory of electric polarization in multi-orbital Mott insulators
Maxim Mostovoy, Kentaro Nomura, Naoto Nagaosa
The interaction between the electric field, E, and spins in multi-orbital Mott insulators is studied theoretically. We find a generic dynamical coupling mechanism, which works for…
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,…
Sharp transition for single polarons in the one-dimensional Su-Schrieffer-Heeger model
D. J. J. Marchand, G. De Filippis, V. Cataudella +5
We study a single polaron in the Su-Schrieffer-Heeger (SSH) model using four different techniques (three numerical and one analytical). Polarons show a smooth crossover from weak t…
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…
Cupric chloride CuCl2 as an S=1/2 chain multiferroic
S. Seki, T. Kurumaji, S. Ishiwata +6
Magnetoelectric properties were investigated for an S=1/2 chain antiferromagnet CuCl2, which turns out to be the first example of non-chalcogen based spiral-spin induced multiferro…
Electromagnons in the spin collinear state of a triangular lattice antiferromagnet
S. Seki, N. Kida, S. Kumakura +2
Terahertz time-domain spectroscopy was performed to directly probe the low-energy (1-5 meV) electrodynamics of triangular lattice antiferromagnets CuFe1-xGaxO2 (x = 0.00, 0.01, and…
Photo-induced insulator-metal transition of a spin-electron coupled system
W. Koshibae, N. Furukawa, N. Nagaosa
The photo-induced metal-insulator transition is studied by the numerical simulation of real-time quantum dynamics of a double-exchange model. The spatial and temporal evolutions of…
Ferroelectricity induced by spin-dependent metal-ligand hybridization in BaCoGeO
H. Murakawa, Y. Onose, S. Miyahara +2
We have investigated the variation of induced ferroelectric polarization under magnetic field with various directions and magnitudes in a staggered antiferromagnet BaCoGeO$…
Epitaxially stabilized iridium spinel oxide without cations in the tetrahedral site
Hiromichi Kuriyama, Jobu Matsuno, Seiji Niitaka +7
Single-crystalline thin film of an iridium dioxide polymorph Ir2O4 has been fabricated by the pulsed laser deposition of LixIr2O4 precursor and the subsequent Li-deintercalation us…
Interplay between charge-lattice interaction and strong electron correlations in cuprates: phonon anomaly and spectral kinks
G. De Filippis, V. Cataudella, R. Citro +3
We investigate the interplay between strong electron correlations and charge-lattice interaction in cuprates. The coupling between half breathing bond stretching phonons and doped…
Spin Oscillations in Antiferromagnetic NiO Triggered by Circularly Polarized Light
Takuya Satoh, Sung-Jin Cho, Ryugo Iida +7
Coherent spin oscillations were non-thermally induced by circularly polarized pulses in fully compensated antiferromagnetic NiO. This effect is attributed to an entirely new mechan…
Electromagnons in the multiferroic state of perovskite manganites with symmetric-exchange striction
Y. Takahashi, S. Ishiwata, S. Miyahara +5
We have investigated electrically-active magnetic excitations (electromagnons) in perovskite manganites with the -type (up-up-down-down) spin structure by terahertz spectroscopy…