Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Koirala, Nikesh"'
Autor:
Yue, Guang, Zhang, Can, Huemiller, Erik D., Montone, Jessica H., Arias, Gilbert R., Wild, Drew G., Zhang, Jered Y., Hamilton, David R., Yuan, Xiaoyu, Yao, Xiong, Jain, Deepti, Moon, Jisoo, Salehi, Maryam, Koirala, Nikesh, Oh, Seongshik, Van Harlingen, Dale J.
Publikováno v:
PHYS. REV. B 109, 094511 (2024)
In an extended superconductor-topological insulator-superconductor (S-TI-S) Josephson junction in a magnetic field, localized Majorana bound states (MBS) are predicted to exist at the cores of Josephson vortices where the local phase difference acros
Externí odkaz:
http://arxiv.org/abs/2311.16489
Autor:
Moon, Jisoo, Kim, Jinwoong, Koirala, Nikesh, Salehi, Maryam, Vanderbilt, David, Oh, Seongshik
The anomalous Hall effect (AHE) is a non-linear Hall effect appearing in magnetic conductors, boosted by internal magnetism beyond what is expected from the ordinary Hall effect. With the recent discovery of the quantized version of the AHE, the quan
Externí odkaz:
http://arxiv.org/abs/1905.01300
Autor:
Sedlmayr, Nicholas, Goodwin, E. W., Gottschalk, Michael, Dayton, Ian M., Zhang, Can, Huemiller, Erik, Loloee, Reza, Chasapis, Thomas C., Salehi, Maryam, Koirala, Nikesh, Kanatzidis, Mercouri G., Oh, Seongshik, Van Harlingen, D. J., Levchenko, Alex, Tessmer, S. H.
In this paper we present scanning tunneling microscopy of Bi$_2$Se$_3$ with superconducting Nb deposited on the surface. We find that the topologically protected surface states of the Bi$_2$Se$_3$ leak into the superconducting over-layer, suggesting
Externí odkaz:
http://arxiv.org/abs/1805.12330
Autor:
Liu, Yang, Besbas, Jean, Wang, Yi, He, Pan, Chen, Mengji, Zhu, Dapeng, Wu, Yang, Lee, Jong Min, Wang, Lan, Moon, Jisoo, Koirala, Nikesh, Oh, Seongshik, Yang, Hyunsoo
Charge-to-spin conversion in various material systems is the key for the fundamental understanding of spin-orbitronis as well as the development of efficient means to manipulate the magnetization. We report the direct spatial imaging of current induc
Externí odkaz:
http://arxiv.org/abs/1805.11382
Autor:
Giorgianni, Flavio, Chiadroni, Enrica, Rovere, Andrea, Cestelli-Guidi, Mariangela, Perucchi, Andrea, Bellaveglia, Marco, Castellano, Michele, Di Giovenale, Domenico, Di Pirro, Giampiero, Ferrario, Massimo, Pompili, Riccardo, Vaccarezza, Cristina, Villa, Fabio, Cianchi, Alessandro, Mostacci, Andrea, Petrarca, Massimo, Brahlek, Matthew, Koirala, Nikesh, Oh, Sean, Lupi, Stefano
Publikováno v:
Nat. Commun. 7:11421 (2016)
Electrons with a linear energy/momentum dispersion are called massless Dirac electrons and represent the low-energy excitations in exotic materials like Graphene and Topological Insulators (TIs). Dirac electrons are characterized by notable propertie
Externí odkaz:
http://arxiv.org/abs/1805.03200
Bi$_{2}$Se$_{3}$, one of the most widely studied topological insulators (TIs), is naturally electron-doped due to n-type native defects. However, many years of efforts to achieve p-type Bi$_{2}$Se$_{3}$ thin films have failed so far. Here, we provide
Externí odkaz:
http://arxiv.org/abs/1801.05437
Autor:
Belopolski, Ilya, Xu, Su-Yang, Koirala, Nikesh, Liu, Chang, Bian, Guang, Strocov, Vladimir N., Chang, Guoqing, Neupane, Madhab, Alidoust, Nasser, Sanchez, Daniel, Zheng, Hao, Brahlek, Matthew, Rogalev, Victor, Kim, Timur, Plumb, Nicholas C., Chen, Chaoyu, Bertran, François, Fèvre, Patrick Le, Taleb-Ibrahimi, Amina, Asensio, Maria-Carmen, Shi, Ming, Lin, Hsin, Hoesch, Moritz, Oh, Seongshik, Hasan, M. Zahid
Publikováno v:
Belopolski et al., Sci. Adv. 2017; 3:e1501692
Engineered lattices in condensed matter physics, such as cold atom optical lattices or photonic crystals, can have fundamentally different properties from naturally-occurring electronic crystals. Here, we report a novel type of artificial quantum mat
Externí odkaz:
http://arxiv.org/abs/1703.04537
Akademický článek
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Autor:
Besbas, Jean, Banerjee, Karan, Son, Jaesung, Wang, Yi, Wu, Yang, Brahlek, Matthew, Koirala, Nikesh, Moon, Jisoo, Oh, Seongshik, Yang, Hyunsoo
Publikováno v:
Adv. Optical Mater. 4, 1642 (2016)
Topological insulators (TIs) form a new class of materials with insulating bulk and surface conduction ensured by topologically protected surface states (TPSS). We investigate the impact of the helicity of a normally incident laser beam on the photov
Externí odkaz:
http://arxiv.org/abs/1610.07025
Autor:
Brahlek, Matthew, Koirala, Nikesh, Salehi, Maryam, Moon, Jisoo, Zhang, Wenhan, Li, Haoxiang, Zhou, Xiaoqing, Han, Myung-Geun, Wu, Liang, Emge, Thomas, Lee, Hang-Dong, Xu, Can, Rhee, Seuk Joo, Gustafsson, Torgny, Armitage, N. P., Zhu, Yimei, Dessau, Daniel S., Wu, Weida, Oh, Seongshik
Publikováno v:
Phys. Rev. B 94, 165104 (2016)
Topological insulators (TI) are a phase of matter that host unusual metallic states on their surfaces. Unlike the states that exist on the surface of conventional materials, these so-called topological surfaces states (TSS) are protected against diso
Externí odkaz:
http://arxiv.org/abs/1609.06305