Zobrazeno 1 - 10
of 1 018
pro vyhledávání: '"OSTERWALDER, J."'
Autor:
Locher, R., Castiglioni, L., Lucchini, M., Greif, M., Gallmann, L., Osterwalder, J., Hengsberger, M., Keller, U.
Publikováno v:
Optica, 2 (2015) 405
How quanta of energy and charge are transported on both atomic spatial and ultrafast time scales is at the heart of modern technology. Recent progress in ultrafast spectroscopy has allowed us to directly study the dynamical response of an electronic
Externí odkaz:
http://arxiv.org/abs/1403.5449
Autor:
Leuenberger, D., Yanagisawa, H., Roth, S., Dil, J. H., Wells, J. W., Hofmann, P., Osterwalder, J., Hengsberger, M.
We present time-resolved photoemission experiments from a peculiar bismuth surface, Bi(114). The strong one-dimensional character of this surface is reflected in the Fermi surface, which consists of spin-polarized straight lines. Our results show tha
Externí odkaz:
http://arxiv.org/abs/1303.2718
Autor:
Xu, Su-Yang, Neupane, M., Liu, Chang, Zhang, D., Richardella, A., Wray, L. A., Alidoust, N., Leandersson, M., Balasubramanian, T., Sánchez-Barriga, J., Rader, O., Landolt, G., Slomski, B., Dil, J. H., Chang, T. -R., Osterwalder, J., Jeng, H. -T., Lin, Hsin, Bansil, A., Samarth, Nitin, Hasan, M. Zahid
The surface of topological insulators is proposed as a promising platform for spintronics and quantum information applications. In particular, when time- reversal symmetry is broken, topological surface states are expected to exhibit a wide range of
Externí odkaz:
http://arxiv.org/abs/1206.2090
Autor:
Xu, Su-Yang, Neupane, M., Liu, Chang, Jia, S., Wray, L. A., Landolt, G., Slomski, B., Dil, J. H., Alidoust, N., Basak, S., Lin, H., Osterwalder, J., Bansil, A., Cava, R. J., Hasan, M. Z.
We perform spin-resolved and spin-integrated angle-resolved photoemission spectroscopy measurements on a series of compositions in the BiTl(S1-xSex)2 system, focusing on x-values in the vicinity of the critical point for the topological phase transit
Externí odkaz:
http://arxiv.org/abs/1204.6518
Autor:
Xu, Su-Yang, Xia, Y., Wray, L. A., Qian, D., Jia, Shuang, Dil, J. H., Meier, F., Osterwalder, J., Slomski, B., Lin, H., Cava, R. J., Hasan, M. Z.
Publikováno v:
Science 332:560,2011
The recently discovered three dimensional or bulk topological insulators are expected to exhibit exotic quantum phenomena. It is believed that a trivial insulator can be twisted into a topological state by modulating the spin-orbit interaction or the
Externí odkaz:
http://arxiv.org/abs/1104.4633
Autor:
Hsieh, D., Xia, Y., Wray, L., Qian, D., Dil, J. H., Meier, F., Patthey, L., Osterwalder, J., Bihlmayer, G., Hor, Y. S., Cava, R. J., Hasan, M. Z.
We report high-resolution spin-resolved photoemission spectroscopy (Spin-ARPES) measurements on the parent compound Sb of the first discovered 3D topological insulator Bi{1-x}Sb{x} [D. Hsieh et al., Nature 452, 970 (2008) Submitted 2007]. By modulati
Externí odkaz:
http://arxiv.org/abs/1103.3413
Autor:
King, P. D. C., Hatch, R. C., Bianchi, M., Ovsyannikov, R., Lupulescu, C., Landolt, G., Slomski, B., Dil, J. H., Guan, D., Mi, J. L., Rienks, E. D. L., Fink, J., Lindblad, A., Svensson, S., Bao, S., Balakrishnan, G., Iversen, B. B., Osterwalder, J., Eberhardt, W., Baumberger, F., Hofmann, Ph.
Publikováno v:
Phys. Rev. Lett. 107 (2011) 096802
We report a Rashba spin splitting of a two-dimensional electron gas in the topological insulator Bi$_2$Se$_3$ from angle-resolved photoemission spectroscopy. We further demonstrate its electrostatic control, and show that spin splittings can be achie
Externí odkaz:
http://arxiv.org/abs/1103.3220
Autor:
Xu, Su-Yang, Wray, L. A., Xia, Y., von Rohr, F., Hor, Y. S., Dil, J. H., Meier, F., Slomski, B., Osterwalder, J., Neupane, M., Lin, H., Bansil, A., Fedorov, A., Cava, R. J., Hasan, M. Z.
The development of spin-based applications of topological insulators requires the knowledge and understanding of spin texture configuration maps as they change via gating in the vicinity of an isolated Dirac node. An isolated (graphene-like) Dirac no
Externí odkaz:
http://arxiv.org/abs/1101.3985
Autor:
Xu, Su-Yang, Wray, L. A., Xia, Y., Shankar, R., Jia, S., Fedorov, A., Dil, J. H., Meier, F., Slomski, B., Osterwalder, J., Cava, R. J., Hasan, M. Z.
A topological insulator is characterized by spin-momentum locking on its boundary. The spin momentum locking on the surface of a three dimensional topological insulator leads to the existence of a non-trivial Berry's phase which leads to exotic trans
Externí odkaz:
http://arxiv.org/abs/1008.3557
Autor:
Hsieh, D., Xia, Y., Qian, D., Wray, L., Dil, J. H., Meier, F., Osterwalder, J., Patthey, L., Checkelsky, J. G., Ong, N. P., Fedorov, A. V., Lin, H., Bansil, A., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.
Publikováno v:
Hsieh et.al., NATURE 460, 1101-1105 (2009)
Both the theoretical and experimental discovery of single-Dirac-cone topological-insulator-class was reported at arXiv:0812.2078 (2008) [Y. Xia et.al., Nature Physics 5, 398-402 (2009) http://www.nature.com/nphys/journal/v5/n6/full/nphys1294.html]. H
Externí odkaz:
http://arxiv.org/abs/1001.1590