978 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyoto UniversityJP223 papers
- The University of TokyoJP53 papers
- The University of OsakaJP48 papers
- Kyoto Bunkyo UniversityJP45 papers
- Tohoku UniversityJP29 papers
- Japan Science and Technology AgencyJP26 papers
- Brookhaven National LaboratoryUS19 papers
- High Energy Accelerator Research OrganizationJP18 papers
- National Institute of Advanced Industrial Science and TechnologyJP18 papers
- Spintronics Research Network of JapanJP16 papers
- Korea Advanced Institute of Science and TechnologyKR13 papers
- Tokyo Institute of TechnologyJP13 papers
10 papers · 1 filter
Non-equilibrium Fluctuation Relations in a Quantum Coherent Conductor
Shuji Nakamura, Yoshiaki Yamauchi, Masayuki Hashisaka +8
We experimentally demonstrate the validity of non-equilibrium fluctuation relations by using a quantum coherent conductor. In equilibrium the fluctuation-dissipation relation leads…
Electron-Hole Asymmetry in Single-Walled Carbon Nanotubes Probed by Direct Observation of Transverse Quasi-Dark Excitons
Yuhei Miyauchi, Hiroshi Ajiki, Shigeo Maruyama
We studied the asymmetry between valence and conduction bands in single-walled carbon nanotubes (SWNTs) through the direct observation of spin-singlet transverse dark excitons usin…
Multiple pre-edge structures in Cu K-edge of high Tc cuprates revealed by high resolution x-ray absorption spectroscopy
C. Gougoussis, J. -P. Rueff, M. Calandra +7
Using high resolution x-ray absorption spectroscopy and state-of-the-art electronic structure calculations we demonstrate that the pre-edge region at the Cu K-edge of high T cu…
Femtosecond Excitation Correlation Spectroscopy of Single-Walled Carbon Nanotubes : Analysis Based on Nonradiative Multiexciton Recombination Processes
Yuhei Miyauchi, Kazunari Matsuda, Yoshihiko Kanemitsu
We studied the nonlinear time-resolved luminescence signals due to multiexciton recombination processes in single-walled carbon nanotubes (SWNTs) using femtosecond excitation corre…
Ferromagnetism and Electronic Structures of Nonstoichiometric Heusler-Alloy Fe_3-xMn_xSi Epilayers Grown on Ge(111)
K. Hamaya, H. Itoh, O. Nakatsuka +6
For the study of ferromagnetic materials which are compatible with group-IV semiconductor spintronics, we demonstrate control of the ferromagnetic properties of Heusler-alloys Fe_3…
Universality of Bias- and Temperature-induced Dephasing in Ballistic Electronic Interferometers
Y. Yamauchi, M. Hashisaka, S. Nakamura +8
We performed a transport measurement in a ballistic Aharonov-Bohm ring and a Fabry-Perot type interferometer. In both cases we found that the interference signal is reversed at a c…
Study of thickness dependent density in ultrathin water soluble polymer films
Mojammel H. Mondal, M. Mukherjee, K. Kawashima +2
Density of the polyacrylamide ultrathin films has been studied using X-ray reflectivity technique. Two sources (one powder and another aqueous solution) of polyacrylamide were used…
Onion structures induced by hydrophilic and hydrophobic ions in a binary mixture
Koichiro Sadakane, Akira Onuki, Koji Nishida +2
Phase transition is observed between one-phase disordered phase and an ordered phase with multi-lamellar (onion) structures in an off-critical mixture of DO and 3-methylpyridin…
Coherence factors in a high-Tc cuprate probed by quasi-particle scattering off vortices
T. Hanaguri, Y. Kohsaka, M. Ono +7
Coherence factors are a hallmark of superconductivity as a pair-condensation phenomenon. When electrons pair, quasi-particles develop an acute sensitivity to different types of sca…
Conductance Anomaly and Fano Factor Reduction in Quantum Point Contacts
Shuji Nakamura, Masayuki Hashisaka, Yoshiaki Yamauchi +3
We report an experimental study on the shot noise as well as the dc transport properties of a quantum point contact (QPC) whose conductance anomaly can be tuned electrostatically b…