Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Drew, H. Dennis"'
Autor:
Jadidi, M. Mehdi, Kargarian, Mehdi, Mittendorff, Martin, Aytac, Yigit, Shen, Bing, König-Otto, Jacob C., Winnerl, Stephan, Ni, Ni, Gaeta, Alexander L., Murphy, Thomas E., Drew, H. Dennis
Publikováno v:
Phys. Rev. B 102, 245123 (2020)
Solids with topologically robust electronic states exhibit unusual electronic and optical transport properties that do not exist in other materials. A particularly interesting example is chiral charge pumping, the so-called chiral anomaly, in recentl
Externí odkaz:
http://arxiv.org/abs/1905.02236
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:
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
We propose an experiment to use the magneto-optical Faraday effect to probe the dynamic Hall conductivity of spin liquid candidates. Theory predicts that an external magnetic field will generate an internal gauge field. If the source of conductivity
Externí odkaz:
http://arxiv.org/abs/1407.6346
Autor:
Bao, Wenzhong, Wan, Jiayu, Han, Xiaogang, Cai, Xinghan, Zhu, Hongli, Kim, Dohun, Ma, Dakang, Xu, Yunlu, Munday, Jeremy, Drew, H. Dennis, Fuhrer, Michael S., Hu, Liangbing
Various bandstructure engineering methods have been studied to improve the performance of graphitic transparent conductors; however none demonstrated an increase of optical transmittance in the visible range. Here we measure in situ optical transmitt
Externí odkaz:
http://arxiv.org/abs/1407.1416
We propose a terahertz radiation source based on the excitation of plasma resonances in graphene structures by means of mixing two NIR laser signals with a THz difference frequency. The process is the photo-thermo-electric effect which has recently b
Externí odkaz:
http://arxiv.org/abs/1311.1605
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