Zobrazeno 1 - 10
of 4 929
pro vyhledávání: '"Ogata, M."'
This study investigates the electronic states and physical quantities of an organic charge-transfer complex HMTSF-TCNQ, which undergoes a charge-density-wave (CDW) phase transition at temperature $T_c\simeq 30$ K. A first-principles calculation is ut
Externí odkaz:
http://arxiv.org/abs/2106.04295
A Dirac electron system in solids mimics a relativistic quantum physics that is compatible with Maxwell's equations, by which we anticipate unified electromagnetic responses. We find a large orbital diamagnetism only along the interplane direction an
Externí odkaz:
http://arxiv.org/abs/2104.13547
Publikováno v:
Phys. Rev. B 104, 165122 (2021)
We study the thermal conductivity in the excitonic insulator using a simple quasi one-dimensional two-band model consisting of electron and hole bands with the Coulomb interactions between these bands. Based on the linear response theory within a mea
Externí odkaz:
http://arxiv.org/abs/2104.03604
Autor:
Suetsugu, S., Kitagawa, K., Kariyado, T., Rost, A. W., Nuss, J., Mühle, C., Ogata, M., Takagi, H.
Publikováno v:
Phys. Rev. B 103, 115117 (2021)
In Dirac semimetals, inter-band mixing has been known theoretically to give rise to a giant orbital diamagnetism when the Fermi level is close to the Dirac point. In Bi$ _{1-x}$Sb$ _x$ and other Dirac semimetals, an enhanced diamagnetism in the magne
Externí odkaz:
http://arxiv.org/abs/2011.13182
Autor:
Fujiwara, H., Terashima, K., Sunagawa, M., Yano, Y., Nagayama, T., Fukura, T., Yoshii, F., Matsuura, Y., Ogata, M., Wakita, T., Yaji, K., Harasawa, A., Kuroda, K., Shin, S., Horiba, K., Kumigashira, H., Muraoka, Y., Yokoya, T.
Publikováno v:
Phys. Rev. Lett. 121, 257201 (2018)
Using high-resolution spin-resolved photoemission spectroscopy, we observed a thermal spin depolarization to which all spin-polarized electrons contribute. Furthermore we observed a distinct minority spin state near the Fermi level and a correspondin
Externí odkaz:
http://arxiv.org/abs/1812.07792
The kinetic features of holes (electrons) in the Hubbard model are studied using a variational Monte Carlo method. In doped Mott insulators (U>U_co), holes are classified, in the sense of conduction, into two categories: (i) The holes appearing in do
Externí odkaz:
http://arxiv.org/abs/1211.6175
Autor:
Kariyado, T., Ogata, M.
Nuclear magnetic relaxation rate 1/T_1 in iron-pnictide superconductors is calculated using the gap function obtained in a microscopic calculation. Based on the obtained results, we discuss the issues such as the rapid decrease of 1/T_1 just below th
Externí odkaz:
http://arxiv.org/abs/0911.2963
Autor:
Kariyado, T., Ogata, M.
Publikováno v:
J. Phys. Soc. Jpn. 79 (2010) 033703
We propose a simple way to parameterize the gap function in iron pnictides. The key idea is to use orbital representation, not band representation, and to assume real-space short-range pairing. Our parameterization reproduces fairly well the structur
Externí odkaz:
http://arxiv.org/abs/0911.2959
Autor:
Morimoto, Y., Sakamoto, Y., Sato, S., Musashi, M., Shirasawa, A., Konno, T., Kobayashi, T., Watanabe, Y., Seto, J., Kobayashi, Y., Sakai, K., Aihara, Y., Kiritani, R., Kataoka, S., Takayama, M., Hamamoto, N., Nakamura, M., Matsumoto, Y., Yuzawa, E., Satoh, H., Igawa, Y., Nagaoka, H., Ehara, H., Tsuchiya, Y., Tomari, K., Takeuchi, K., Tsunomori, Y., Kawai, H., Akita, H., Kuribayashi, C., Uchida, J., Ichihara, F., semba, K., Tokaji, A., Carle, Y., Honda, M., Nakamura, E., Ogata, M., Tsuru, N., Takara, T., Ikebe, T., Okuno, R., Sasaki, M., Kanda, Y., Otsuka, H., Kawahara, R., Ohya, H., Suzuki, M., Uchida, K., Nihonmatsu, H., Ohnishi, M.
Publikováno v:
In Journal of Infection and Chemotherapy February 2018 24(2):117-122
Autor:
Uemura, Y. J., Russo, P. L., Savici, A. T., Wiebe, C. R., MacDougall, G. J., Luke, G. M., Mochizuki, M., Yanase, Y., Ogata, M., Foo, M. L., Cava, R. J.
Muon spin relaxation ($\mu$SR) measurements on the new layered cobalt oxide superconductor Na$_{0.35}$CoO$_{2}\cdot$1.3H$_{2}$O and its parent, non-superconducting compounds, have revealed unconventional nature of superconductivity through: (1) a sma
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403031