Zobrazeno 1 - 10
of 1 061
pro vyhledávání: '"Yoshioka D"'
Publikováno v:
Phys. Rev. Lett. 97, 236804 (2006)
We measured the local density of states (LDOS) of a quasi two-dimensional (2D) electron system near point defects on a surface of highly oriented pyrolytic graphite (HOPG) with scanning tunneling microscopy and spectroscopy. Differential tunnel condu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511733
Autor:
Nakamura, Y., Yoshioka, D., Miyagawa, S., Yoshikawa, Y., Hata, H., Matsuura, R., Toda, K., Sawa, Y.
Publikováno v:
In Transplantation Proceedings December 2018 50(10):4067-4070
Deformation of the easy-axis ferromagnetic state in asymmetric bilayer systems are investigated numerically. Using the exact diagonalization the easy-axis to easy-plane ferromagnetic transition at total filling factor 3 or 4 is investigated. At still
Externí odkaz:
http://arxiv.org/abs/cond-mat/0308158
Autor:
Shibata, N., Yoshioka, D.
Publikováno v:
J. Phys. Soc. Jpn. Vol.72 (2003) 664
The ground state of 2D electrons in high magnetic field is studied by the density matrix renormalization group method. The ground state energy, excitation gap, and pair correlation functions are systematically calculated at various fillings in the lo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210569
Autor:
Shibata, N., Yoshioka, D.
Publikováno v:
Phys.Rev.Lett.86:5755-5758,2001
The ground state phase diagram of 2D electrons in a high Landau level (index N=2) is studied by the density matrix renormalization group method. Pair correlation functions are systematically calculated for various filling factors from v=1/8 to 1/2. I
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101401
Publikováno v:
J. Phys. Soc. Jpn. 66 (1997) 2580
The effects of non-magnetic impurities randomly doped into a two-leg Heisenberg spin ladder are investigated. Using the continuous time quantum Monte Carlo loop algorithm we calculate the uniform and staggered susceptibilities of such a system. The o
Externí odkaz:
http://arxiv.org/abs/cond-mat/9706123
Publikováno v:
Phys. Rev. B 55, 15735 (1997)
We show how a fine, multiple-peak structure can arise in the off-resonance, zero-bias conductance of Coulomb blockade systems. In order to understand how this effect comes about one must abandon the orthodox, mean-field understanding of the Coulomb b
Externí odkaz:
http://arxiv.org/abs/cond-mat/9612068
Autor:
Yoshioka, D., MacDonald, A. H.
A theory of transport in the quantum Hall regime is developed for separately contacted double-layer electron systems. Inter-layer tunneling provides a channel for equilibration of the distribution functions in the two layers and influences transport
Externí odkaz:
http://arxiv.org/abs/cond-mat/9607096
Autor:
Yang, Kun, Moon, K., Belkhir, Lotfi, Mori, H., Girvin, S. M., MacDonald, A. H., Zheng, L., Yoshioka, D.
At strong magnetic fields double-layer two-dimensional-electron-gas systems can form an unusual broken symmetry state with spontaneous inter-layer phase coherence. The system can be mapped to an equivalent system of pseudospin $1/2$ particles with ps
Externí odkaz:
http://arxiv.org/abs/cond-mat/9605153
Autor:
Yoshioka, D., MacDonald, A. H.
Publikováno v:
Phys. Rev. B53 (1996) R16168
We develop a theory of edge state transport in separately contacted double-layer quantum Hall systems which are tuned close to the resonance condition for tunneling between the layers. When applied to the case where contact is made to only one layer,
Externí odkaz:
http://arxiv.org/abs/cond-mat/9603192