Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Sushkov, A. B."'
Autor:
Levy, Antonio L., Sushkov, Andrei B., Liu, Fengguang, Shen, Bing, Ni, Ni, Drew, Howard D., Jenkins, Gregory S.
Publikováno v:
Phys. Rev. B 101, 125102 (2020)
Chiral pumping from optical electric fields oscillating at THz frequencies is observed in the Weyl material TaAs with electric and magnetic fields aligned along both the a- and c-axes. Free carrier spectral weight enhancement is measured directly for
Externí odkaz:
http://arxiv.org/abs/1810.05660
Akademický článek
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Publikováno v:
2017 J. Phys.: Condens. Matter 29 095802
We report on temperature dependence of the infrared reflectivity spectra of a single crystalline herbertsmithite in two polarizations --- parallel and perpendicular to the kagome plane of Cu atoms. We observe anomalous broadening of the low frequency
Externí odkaz:
http://arxiv.org/abs/1608.01240
Autor:
Jadidi, M. Mehdi, Suess, Ryan J., Tan, Cheng, Cai, Xinghan, Watanabe, Kenji, Taniguchi, Takashi, Sushkov, Andrei B., Mittendorff, Martin, Hone, James, Drew, H. Dennis, Fuhrer, Michael S., Murphy, Thomas E.
Publikováno v:
Phys. Rev. Lett. 117, 257401 (2016)
Hot electron effects in graphene are significant because of graphene's small electronic heat capacity and weak electron-phonon coupling, yet the dynamics and cooling mechanisms of hot electrons in graphene are not completely understood. We describe a
Externí odkaz:
http://arxiv.org/abs/1607.02181
Autor:
Jenkins, G. S., Lane, C., Barbiellini, B., Sushkov, A. B., Carey, R. L., Liu, Fengguang, Krizan, J. W., Kushwaha, S. K., Gibson, Q., Chang, Tay-Rong, Jeng, Horng-Tay, Lin, Hsin, Cava, R. J., Bansil, A., Drew, H. D.
Publikováno v:
Physical Review B 94, 085121 (2016)
Optical measurements and band structure calculations are reported on 3D Dirac materials. The electronic properties associated with the Dirac cone are identified in the reflectivity spectra of Cd$_3$As$_2$ and Na$_3$Bi single crystals. In Na$_3$Bi, th
Externí odkaz:
http://arxiv.org/abs/1605.02145
Autor:
Jadidi, Mohammad M., König-Otto, Jacob C., Winnerl, Stephan, Sushkov, Andrei B., Drew, H. Dennis, Murphy, Thomas E., Mittendorff, Martin
Sub-wavelength graphene structures support localized plasmonic resonances in the terahertz and mid-infrared spectral regimes. The strong field confinement at the resonant frequency is predicted to significantly enhance the light-graphene interaction,
Externí odkaz:
http://arxiv.org/abs/1512.07508
Autor:
Sushkov, Andrei B., Hofmann, Johannes B., Jenkins, Gregory S., Ishikawa, Jun, Nakatsuji, Satoru, Sarma, Sankar Das, Drew, H. Dennis
Publikováno v:
Phys. Rev. B 92, 241108 (2015)
A Weyl semimetallic state with pairs of nondegenerate Dirac cones in three dimensions was recently predicted to occur in the antiferromagnetic state of the pyrochlore iridates. Here, we show that the THz optical conductivity and temperature dependenc
Externí odkaz:
http://arxiv.org/abs/1507.01038
Autor:
Jadidi, Mohammad M., Sushkov, Andrei B., Myers-Ward, Rachael L., Boyd, Anthony K., Daniels, Kevin M., Gaskill, D. Kurt, Fuhrer, Michael S., Drew, H. Dennis, Murphy, Thomas E.
Publikováno v:
Nano Lett., 2015, 15 (10), pp 7099-7104
Among its many outstanding properties, graphene supports terahertz surface plasma waves -- sub-wavelength charge density oscillations connected with electromagnetic fields that are tightly localized near the surface[1,2]. When these waves are confine
Externí odkaz:
http://arxiv.org/abs/1506.05817
Autor:
Sushkov, A. B., Kant, Ch., Schiebl, M., Shuvaev, A. M., Pimenov, Anna, Pimenov, Andrei, Lorenz, B., Park, S., Cheong, S-W., Mostovoy, Maxim, Drew, H. D.
Publikováno v:
Physical Review B 90, 054417 (2014)
The origin of the colossal magnetodielectric effect in DyMn2O5 [1] has been an outstanding question in multiferroics. Here, we report the activation of the electric dipole mode at 4-5 cm-1 in an applied magnetic field which fully accounts for the CMD
Externí odkaz:
http://arxiv.org/abs/1403.3717
Autor:
Cai, Xinghan, Sushkov, Andrei B., Suess, Ryan J., Jadidi, Mohammad M., Jenkins, Greg S., Nyakiti, Luke O., Myers-Ward, Rachael L., Li, Shanshan, Yan, Jun, Gaskill, D. Kurt, Murphy, Thomas E., Drew, H. Dennis, Fuhrer, Michael S.
Terahertz (THz) radiation has uses from security to medicine; however, sensitive room-temperature detection of THz is notoriously difficult. The hot-electron photothermoelectric effect in graphene is a promising detection mechanism: photoexcited carr
Externí odkaz:
http://arxiv.org/abs/1305.3297