Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Lea, M. J."'
Publikováno v:
Phys. Rev. Lett. 119, 256802 (2017)
We study the shift of the energy levels of electrons on helium surface due to the coupling to the quantum field of surface vibrations. As in quantum electrodynamics, the coupling is known, and it is known to lead to an ultraviolet divergence of the l
Externí odkaz:
http://arxiv.org/abs/1707.02946
Publikováno v:
Phys. Rev. B 96, 235427 (2017)
We present measurements of the resonant microwave absorption by the Rydberg energy levels of surface state electrons on the surface of superfluid liquid helium, in the frequency range 165 - 220 GHz. The resonant frequency was strongly temperature dep
Externí odkaz:
http://arxiv.org/abs/1707.02119
We study nonlinear inter-subband microwave absorption of electrons bound to the liquid helium surface. Already for a comparatively low radiation intensity, resonant absorption due to transitions between the two lowest subbands is accompanied by elect
Externí odkaz:
http://arxiv.org/abs/1201.5910
Publikováno v:
Phys. Rev. Lett. 103, 096801 (2009)
We show that electrons on liquid helium display intrinsic bistability of resonant inter-subband absorption. The bistability occurs for comparatively weak microwave power. The underlying giant nonlinearity of the many-electron response results from th
Externí odkaz:
http://arxiv.org/abs/0906.5483
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Papageorgiou, G., Glasson, P., Harrabi, K., Antonov, V., Collin, E., Fozooni, P., Frayne, P. G., Lea, M. J., Mukharsky, Y., Rees, D. G.
We show that small numbers of electrons, including a single electron, can be held in a novel electrostatic trap above the surface of superfluid helium. A potential well is created using microfabricated electrodes in a 5 micron diameter pool of helium
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405084
Autor:
Collin, E., Bailey, W., Fozooni, P., Frayne, P. G., Glasson, P., Harrabi, K., Lea, M. J., Papageorgiou, G.
We present measurements of the resonant microwave excitation of the Rydberg energy levels of surface state electrons on superfluid helium. The temperature dependent linewidth agrees well with theoretical predictions and is very small below 300 mK. Ab
Externí odkaz:
http://arxiv.org/abs/cond-mat/0208001
Autor:
Valkering, A. M. C., Sommerfeld, P. K. H., van de Ven, R. A. M., van der Heijden, R. W., Blom, F. A. P., Lea, M. J., Peeters, F. M.
Publikováno v:
Phys. Rev Lett. 81, 5398 (1998)
The magnetocapacitance of a two-dimensional electron system (2DES) is investigated experimentally, both under and away from Quantum Hall (QH) conditions, at frequencies between 1 kHz and 100 MHz. The nature of the capacitive signal in a bounded 2DES
Externí odkaz:
http://arxiv.org/abs/cond-mat/9810377
Autor:
Rubo, Yuri G., Lea, M. J.
Publikováno v:
Phys. Rev. B, v.58, pp. 13197-13203 (1998)
The a.c. response of an unpinned and finite 2D Wigner crystal to electric fields at an angular frequency $\omega$ has been calculated in the dissipative limit, $\omega \tau \ll 1$, where $\tau ^{-1}$ is the scattering rate. For electrons screened by
Externí odkaz:
http://arxiv.org/abs/cond-mat/9802200
Publikováno v:
J. Phys.: Condensed Matter 8, L215 (1996)
The forces on individual electrons in an unscreened nondegenerate electron fluid, due to electron density fluctuations, have been calculated using Monte Carlo simulations and determined experimentally over a broad range of the plasma parameter Gamma.
Externí odkaz:
http://arxiv.org/abs/cond-mat/9611180