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
13 papers · 1 filter
Detailed Balance Condition and Effective Free Energy in the Primitive Chain Network Model
Takashi Uneyama, Yuichi Masubuchi
We consider statistical mechanical properties of the primitive chain network (PCN) model for entangled polymers from its dynamic equations. We show that the dynamic equation for th…
Sub-Poissonian shot noise in CoFeB/MgO/CoFeB-based magnetic tunneling junctions
Tomonori Arakawa, Koji Sekiguchi, Shuji Nakamura +7
We measured the shot noise in the CoFeB/MgO/CoFeB-based magnetic tunneling junctions with a high tunneling magnetoresistance ratio (over 200% at 3 K). Although the Fano factor in t…
Analysis of the impact degree distribution in metabolic networks using branching process approximation
Kazuhiro Takemoto, Takeyuki Tamura, Yang Cong +3
Theoretical frameworks to estimate the tolerance of metabolic networks to various failures are important to evaluate the robustness of biological complex systems in systems biology…
A Comparison of Stripe Modulations in LaBaCuO and LaNdSrCuO
S. B. Wilkins, M. P. M. Dean, Jörg Fink +10
We report combined soft and hard x-ray scattering studies of the electronic and lattice modulations associated with stripe order in LaBaCuO and LaN…
Single Chain Slip-Spring Model for Fast Rheology Simulations of Entangled Polymers on GPU
Takashi Uneyama
We propose a single chain slip-spring model, which is based on the slip-spring model by Likhtman [A. E. Likhtman, Macromolecules, 38, 6128 (2005)], for fast rheology simulations of…
Symmetry and Nonstoichiometry as Possible Origin of Ferromagnetism in Nanoscale oxides
Takashi Uchino, Toshinobu Yoko
We show through density functional theory calculations that extended magnetic states can inherently occur in oxides as the size of the crystals is reduced down to the nanometer sca…
Evolution of the Kondo Effect in a Quantum Dot Probed by the Shot Noise
Yoshiaki Yamauchi, Koji Sekiguchi, Kensaku Chida +6
We measure the current and shot noise in a quantum dot (QD) in the Kondo regime to address the non-equilibrium properties of the Kondo effect. By systematically tuning the temperat…
Anisotropic Mobility Model for Polymers under Shear and its Linear Response Functions
Takashi Uneyama, Kazushi Horio, Hiroshi Watanabe
We propose a simple dynamic model of polymers under shear with an anisotropic mobility tensor. We calculate the shear viscosity, the rheo-dielectric response function, and the para…
Equilibrium Statistics of Weakly Slip-Linked Gaussian Polymer Chains
Takashi Uneyama, Kazushi Horio
We calculate the free energy and the pressure of a weakly slip-linked Gaussian polymer chains. We show that the equilibrium statistics of a slip-linked system is different from one…
Magnetic Frustration in a Mn Honeycomb Lattice Induced by Mn-O-O-Mn Pathways
H. Wadati, K. Kato, Y. Wakisaka +9
We investigated the electronic structure of layered Mn oxide Bi3Mn4O12(NO3) with a Mn honeycomb lattice by x-ray absorption spectroscopy. The valence of Mn was determined to be 4+…
Anomalous Hall effect in field-effect structures of (Ga,Mn)As
D. Chiba, A. Werpachowska, M. Endo +4
The anomalous Hall effect in metal-insulator-semiconductor structures having thin (Ga,Mn)As layers as a channel has been studied in a wide range of Mn and hole densities changed by…
Laser-Shock Compression and Hugoniot Measurements of Liquid Hydrogen to 55 GPa
T. Sano, N. Ozaki, T. Sakaiya +19
The principal Hugoniot for liquid hydrogen was obtained up to 55 GPa under laser-driven shock loading. Pressure and density of compressed hydrogen were determined by impedance-matc…
Fluctuation Theorem and Microreversibility in a Quantum Coherent Conductor
Shuji Nakamura, Yoshiaki Yamauchi, Masayuki Hashisaka +8
Mesoscopic systems provide us a unique experimental stage to address non-equilibrium quantum statistical physics. By using a simple tunneling model, we describe the electron exchan…