Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Stormer, H."'
Autor:
Henriksen, E. A., Cadden-Zimansky, P., Jiang, Z., Li, Z. Q., Tung, L. -C., Schwartz, M. E., Takita, M., Wang, Y. -J., Kim, P., Stormer, H. L.
Publikováno v:
PRL 104, 067404 (2010)
We report a study of the cyclotron resonance (CR) transitions to and from the unusual $n=0$ Landau level (LL) in monolayer graphene. Unexpectedly, we find the CR transition energy exhibits large (up to 10%) and non-monotonic shifts as a function of t
Externí odkaz:
http://arxiv.org/abs/0910.4575
Autor:
Li, Z. Q., Henriksen, E. A., Jiang, Z., Hao, Z., Martin, M. C., Kim, P., Stormer, H. L., Basov, D. N.
Publikováno v:
Nature Physics 4, 532 (2008)
A remarkable manifestation of the quantum character of electrons in matter is offered by graphene, a single atomic layer of graphite. Unlike conventional solids where electrons are described with the Schrodinger equation, electronic excitations in gr
Externí odkaz:
http://arxiv.org/abs/0807.3780
Autor:
Li, Z. Q., Henriksen, E. A., Jiang, Z., Hao, Z., Martin, M. C., Kim, P., Stormer, H. L., Basov, D. N.
Publikováno v:
Phys. Rev. Lett. 102, 037403 (2009).
We report on infrared spectroscopy of bilayer graphene integrated in gated structures. We observed a significant asymmetry in the optical conductivity upon electrostatic doping of electrons and holes. We show that this finding arises from a marked as
Externí odkaz:
http://arxiv.org/abs/0807.3776
The resistivity of ultra-clean suspended graphene is strongly temperature dependent for 5K0.5*10^11 cm^-2, the res
Externí odkaz:
http://arxiv.org/abs/0805.1830
Autor:
Bolotin, K. I., Sikes, K. J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P., Stormer, H. L.
Publikováno v:
Solid State Communications 146, 351-355 (2008)
We have achieved mobilities in excess of 200,000 cm^2/Vs at electron densities of ~2*10^11 cm^-2 by suspending single layer graphene. Suspension ~150 nm above a Si/SiO_2 gate electrode and electrical contacts to the graphene was achieved by a combina
Externí odkaz:
http://arxiv.org/abs/0802.2389
Autor:
Henriksen, E. A., Jiang, Z., Tung, L. -C., Schwartz, M. E., Takita, M., Wang, Y. -J., Kim, P., Stormer, H. L.
Publikováno v:
Phys. Rev. Lett. 100, 087403 (2008)
We present the first measurements of cyclotron resonance of electrons and holes in bilayer graphene. In magnetic fields up to B = 18 T we observe four distinct intraband transitions in both the conduction and valence bands. The transition energies ar
Externí odkaz:
http://arxiv.org/abs/0801.1861
Autor:
Pan, W., Xia, J. S., Stormer, H. L., Tsui, D. C., Vicente, C., Adams, E. D., Sullivan, N. S., Pfeiffer, L. N., Baldwin, K. W., West, K. W.
We present a spectrum of experimental data on the fractional quantum Hall effect (FQHE) states in the first excited Landau level, obtained in an ultrahigh mobility two-dimensional electron system (2DES) and at very low temperatures and report the fol
Externí odkaz:
http://arxiv.org/abs/0801.1318
Autor:
Tan, Y. -W., Zhang, Y., Bolotin, K., Zhao, Y., Adam, S., Hwang, E. H., Sarma, S. Das, Stormer, H. L., Kim, P.
Publikováno v:
Phys. Rev. Lett. 99, 246803 (2007)
The conductivity of graphene samples with various levels of disorder is investigated for a set of specimens with mobility in the range of $1-20\times10^3$ cm$^2$/V sec. Comparing the experimental data with the theoretical transport calculations based
Externí odkaz:
http://arxiv.org/abs/0707.1807
Publikováno v:
Phys. Rev. Lett. 99, 106802 (2007)
We investigate the quantum Hall (QH) states near the charge neutral Dirac point of a high mobility graphene sample in high magnetic fields. We find that the QH states at filling factors $\nu=\pm1$ depend only on the perpendicular component of the fie
Externí odkaz:
http://arxiv.org/abs/0705.1102
Autor:
Jiang, Z., Henriksen, E. A., Tung, L. C., Wang, Y. -J., Schwartz, M. E., Han, M. Y., Kim, P., Stormer, H. L.
Publikováno v:
Phys. Rev. Lett. 98, 197403 (2007).
We report infrared studies of the Landau level (LL) transitions in single layer graphene. Our specimens are density tunable and show \textit{in situ} half-integer quantum Hall plateaus. Infrared transmission is measured in magnetic fields up to B=18
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703822