Zobrazeno 1 - 10
of 1 711
pro vyhledávání: '"Clarke, W P"'
Autor:
Clarke, W. A., Marangell, R.
We study the modulational stability of periodic travelling wave solutions to equations of nonlinear Schr\"odinger type. In particular, we prove that the characteristics of the quasi-linear system of equations resulting from a slow modulation approxim
Externí odkaz:
http://arxiv.org/abs/2011.09656
Autor:
Ho, L. H., Clarke, W. R., Micolich, A. P., Danneau, R., Klochan, O., Simmons, M. Y., Hamilton, A. R., Pepper, M., Ritchie, D. A.
We have developed a technique utilizing a double quantum well heterostructure that allows us to study the effect of a nearby ground-plane on the metallic behavior in a GaAs two-dimensional hole system (2DHS) in a single sample and measurement cool-do
Externí odkaz:
http://arxiv.org/abs/0804.4049
Autor:
Danneau, R., Klochan, O., Clarke, W. R., Ho, L. H., Micolich, A. P., Simmons, M. Y., Hamilton, A. R., Pepper, M., Ritchie, D. A.
We study the anomalous conductance plateau around $G = 0.7(2e^{2}/h)$ and the zero-bias anomaly in ballistic hole quantum wires with respect to in-plane magnetic fields applied parallel $B_{\parallel}$ and perpendicular $B_{\perp}$ to the quantum wir
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702210
Autor:
Klochan, O., Clarke, W. R., Danneau, R., Micolich, A. P., Ho, L. H., Hamilton, A. R., Muraki, K., Hirayama, Y.
We have fabricated and studied a ballistic one-dimensional p-type quantum wire using an undoped AlGaAs/GaAs heterostructure. The absence of modulation doping eliminates remote ionized impurity scattering and allows high mobilities to be achieved over
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607509
Autor:
Danneau, R., Klochan, O., Clarke, W. R., Ho, L. H., Micolich, A. P., Simmons, M. Y., Hamilton, A. R., Pepper, M., Ritchie, D. A., Zuelicke, U.
We have studied the effect of an in-plane magnetic field B on a one-dimensional hole system in the ballistic regime created by surface gate confinement. We observed clearly the lifting of the spin degeneracy due to the Zeeman effect on the one dimens
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607357
Autor:
Danneau, R., Klochan, O., Clarke, W. R., Ho, L. H., Micolich, A. P., Simmons, M. Y., Hamilton, A. R., Pepper, M., Ritchie, D. A., Zuelicke, U.
Publikováno v:
Phys. Rev. Lett. 97, 026403 (2006)
We have studied the Zeeman splitting in ballistic hole quantum wires formed in a (311)A quantum well by surface gate confinement. Transport measurements clearly show lifting of the spin degeneracy and crossings of the subbands when an in-plane magnet
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607355
Autor:
Danneau, R., Clarke, W. R., Klochan, O., Micolich, A. P., Hamilton, A. R., Simmons, M. Y., Pepper, M., Ritchie, D. A.
We have studied ballistic transport in a 1D channel formed using surface gate techniques on a back-gated, high-mobility, bilayer 2D hole system. At millikelvin temperatures, robust conductance quantization is observed in the quantum wire formed in th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507592
Autor:
Clarke, W. R., Micolich, A. P., Hamilton, A. R., Simmons, M. Y., Hanna, C. B., Rodriguez, J. R., Pepper, M., Ritchie, D. A.
We use high-mobility bilayer hole systems with negligible tunneling to examine how the bilayer nu = 1 quantum Hall state evolves as charge is transferred from one layer to the other at constant total density. We map bilayer nu = 1 state stability ver
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403490
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