Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Nakanishi A"'
Autor:
Hideyuki Sato, Daisuke Kikuchi, Hitoshi Sugawara, Yoshiki Nakanishi, Masahito Yoshizawa, Chihiro Sekine, Mitsuteru Nakamura, Peijie Sun, Ichimin Shirotani
Publikováno v:
Journal of the Physical Society of Japan. 77:84-89
Filled skutterudites show various interesting physical properties, such as unconventional superconductivity, anomalous magnetism, metal–insulator transition, heavy fermion behavior and so on. We have investigated the multipole ordering state of SmR
Autor:
Masafumi Oikawa, Masahito Yoshizawa, Yoshiki Nakanishi, Chihiro Sekine, Shanta Saha, Hideyuki Sato, Hitoshi Sugawara, Ichimin Shirotani
Publikováno v:
Journal of the Physical Society of Japan. 74:2141-2144
We have studied the origin of the successive phase transitions in filled skutterudite SmRu 4 P 12 based on the results of elastic constant measurements. The temperature dependence of the elastic constants shows a sharp drop at the metal–insulator (
Autor:
Masahito Yoshizawa, T. Kumagai, Yoshiki Nakanishi, Masafumi Oikawa, Chihiro Sekine, Ichimin Shirotani
Publikováno v:
Journal of the Physical Society of Japan. 73:315-318
The longitudinal and transverse elastic constants of polycrystalline SmRu 4 P 12 have been measured as a function of temperature in the magnetic field up to 12 T. The transverse elastic constant shows a weak softening toward low temperatures. Both lo
Autor:
Y. Nakanishi, Takuo Sakon, Mitsuhiro Motokawa, Takashi Suzuki, Takeshi Matsumura, F. Takahashi
Publikováno v:
Journal of the Physical Society of Japan. 70:2703-2710
Magnetic properties of TmS have been examined in high magnetic fields by means of resistivity, specific heat and magnetization measurements using a high quality single crystal. The high-field magnetization measurements indicate that the magnetization
Autor:
Y. Nakanishi, Takashi Suzuki, Takuo Sakon, Mitsuhiro Motokawa, A. Uesawa, M. Kubota, F. Takahashi
Publikováno v:
Journal of the Physical Society of Japan. 70:2437-2442
We have investigated the magnetic properties of Ce x La 1- x Sb alloys for x =0.9 and 0.5 by means of magnetization and specific heat measurements. They exhibit the magnetic ordering below 11.4 K for x =0.9 and 1.5 K for x =0.5. Their distinct anomal
Autor:
Tsuneya Ando, Takeshi Nakanishi
Publikováno v:
Journal of the Physical Society of Japan. 70:1647-1658
The effective Hamiltonian for two crossed nanotubes is derived in a k · p scheme and the conductance between them is calculated in the Born approximation. The conductance is found to depend strongly on the crossing angle with large maxima at commens
Publikováno v:
Journal of the Physical Society of Japan. 70:481-491
An effective-mass theory is developed on transport of non-doped carbon nanotubes with local and short-range impurities in the presence of a magnetic field. The conductance is shown to be scaled com...
Publikováno v:
Scopus-Elsevier
The conductance of carbon nanotubes with a vacancy is studied in a tight-binding model. We examine the Fermi energy e dependence of the conductance and show it is quantized into zero, one, and two times the conductance quantum \(e^{2}/\pi\hbar\) depe
Publikováno v:
Journal of the Physical Society of Japan. 76:223-225
We report a compact pressure cell that is designed to measure the absolute value of electrical resistivity at hydrostatic pressures up to 10 GPa in magnetic fields at low temperatures using a commercial PPMS (physical property measurement system, Qua
Autor:
Tsuneya Ando, Takeshi Nakanishi
Publikováno v:
Journal of the Physical Society of Japan. 67:1704-1713
The effective potential of an impurity in a k · p scheme is derived in two-dimensional graphite sheet. When the potential range is smaller than the lattice constant, it has an off-diagonal matrix element between K and K ′ points comparable to the