Zobrazeno 61 - 70
of 4 372
pro vyhledávání: '"Hirayama, Y."'
Autor:
Ideguchi, E., Ota, S., Morikawa, T., Oshima, M., Koizumi, M., Toh, Y., Kimura, A., Harada, H., Furutaka, K., Nakamura, S., Kitatani, F., Hatsukawa, Y., Shizuma, T., Sugawara, M., Miyatake, H., Watanabe, Y. X., Hirayama, Y., Oi, M.
Publikováno v:
Phys.Lett.B686:18-22,2010
A rotational band with five $\gamma$-ray transitions ranging from 2$^{+}$ to 12$^{+}$ states was identified in $^{40}$Ar. This band is linked through $\gamma$ transitions from the excited 2$^{+}$, 4$^{+}$ and 6$^{+}$ levels to the low-lying states; t
Externí odkaz:
http://arxiv.org/abs/0910.5079
Publikováno v:
International Journal of Modern Physics B, v.23, Iss. 12/13, pp.2698 - 2702 (2009)
Microwave absorption by a high mobility 2DEG has been investigated experimentally using sensitive Electron Paramagnetic Resonance cavity technique. It is found that MW absorption spectra are chiefly governed by confined magnetoplasmon excitations in
Externí odkaz:
http://arxiv.org/abs/0906.1566
Publikováno v:
In Journal of Alloys and Compounds 5 November 2018 768:608-612
We study the Zeeman splitting in induced ballistic 1D quantum wires aligned along the [233] and [011] axes of a high mobility (311)A undoped heterostructure. Our data shows that the g-factor anisotropy for magnetic fields applied along the high symme
Externí odkaz:
http://arxiv.org/abs/0809.0969
We demonstrate an alternative nuclear spin resonance using radio frequency (RF) electric field (nuclear electric resonance: NER) instead of magnetic field. The NER is based on the electronic control of electron spins forming a domain structure. The R
Externí odkaz:
http://arxiv.org/abs/0808.0538
Autor:
Hashimoto, K., Sohrmann, C., Wiebe, J., Inaoka, T., Meier, F., Hirayama, Y., Roemer, R. A., Wiesendanger, R., Morgenstern, M.
Publikováno v:
Phys. Rev. Lett. 101, 256802-4 (2008)
Using scanning tunneling spectroscopy in ultra-high vacuum at low temperature (T = 0.3 K) and high magnetic fields (B < 12 T), we directly probe electronic wave functions across an integer quantum Hall transition. In accordance with theoretical predi
Externí odkaz:
http://arxiv.org/abs/0807.3784
Publikováno v:
Appl. Phys. Lett. 92, 222104(2008)
We report electron transport measurements of a silicon double dot formed in multi-gated metal-oxide-semiconductor structures with a 15-nm-thick silicon-on-insulator layer. Tunable tunnel coupling enables us to observe an excitation spectrum in weakly
Externí odkaz:
http://arxiv.org/abs/0806.0422
Autor:
Renard, Vincent Thomas Francois, Tkachenko, O. A., Tkachenko, V. A., Ota, T., Kumada, N., Portal, J. -C., Hirayama, Y.
Publikováno v:
Physical Review Letters 100 (2008) 186801
An unusual increase of the conductance with temperature is observed in clean quantum point contacts for conductances larger than 2e^2/h. At the same time a positive magnetoresistance arises at high temperatures. A model accounting for electron-electr
Externí odkaz:
http://arxiv.org/abs/0803.3503
Autor:
Fukuda, A., Terasawa, D., Morino, M., Iwata, K., Kozumi, S., Kumada, N., Hirayama, Y., Ezawa, Z. F., Sawada, A.
We investigate a domain structure of pseudospins, a soliton lattice in the bilayer quantum Hall state at total Landau level filling factor $\nu =1$, in a tilted magnetic field, where the pseudospin represents the layer degree of freedom. An anomalous
Externí odkaz:
http://arxiv.org/abs/0711.1216
We study decoherence of nuclear spins in a GaAs quantum well structure using resistively detected nuclear magnetic resonance. The transverse decoherence time T2 of 75As nuclei is estimated from Rabi-type coherent oscillations as well as by using spin
Externí odkaz:
http://arxiv.org/abs/0710.3487