Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Uday, Anjana"'
Autor:
Brede, Jens, Bagchi, Mahasweta, Greichgauer, Adrian, Uday, Anjana, Bliesener, Andrea, Lippertz, Gertjan, Yazdanpanah, Roozbeh, Taskin, Alexey, Ando, Yoichi
We use scanning tunneling microscopy and spectroscopy under ultra-high vacuum and down to 1.7 K to study the local variations of the chemical potential on the surface of the topological insulator (Bi$_{1-x}$Sb$_x$)$_2$Te$_3$ thin films (thickness 7 -
Externí odkaz:
http://arxiv.org/abs/2410.03493
Autor:
Röper, Torsten, Thomas, Hugo, Rosenbach, Daniel, Uday, Anjana, Lippertz, Gertjan, Denis, Anne, Morfin, Pascal, Taskin, Alexey A., Ando, Yoichi, Bocquillon, Erwann
The quantum anomalous Hall (QAH) effect, with its single chiral, topologically protected edge state, offers a platform for flying Majorana states as well as non-reciprocal microwave devices. While recent research showed the non-reciprocity of edge pl
Externí odkaz:
http://arxiv.org/abs/2405.19983
Autor:
Lippertz, Gertjan, Breunig, Oliver, Fister, Rafael, Uday, Anjana, Bliesener, Andrea, Brede, Jens, Taskin, Alexey, Ando, Yoichi
The selective-area epitaxy (SAE) is a useful technique to grow epitaxial films with a desired shape on a pre-patterned substrate. Although SAE of patterned topological-insulator (TI) thin films has been performed in the past, there has been no report
Externí odkaz:
http://arxiv.org/abs/2404.08427
Autor:
Uday, Anjana, Lippertz, Gertjan, Moors, Kristof, Legg, Henry F., Bliesener, Andrea, Pereira, Lino M. C., Taskin, A. A., Ando, Yoichi
Inducing Cooper pairing in a thin ferromagnetic topological insulator in the quantum anomalous Hall state (called quantum anomalous Hall insulator, QAHI) is a promising way to realize topological superconductivity with associated chiral Majorana edge
Externí odkaz:
http://arxiv.org/abs/2307.08578
Autor:
Rößler, Matthias, Fan, Dingxun, Münning, Felix, Legg, Henry F., Bliesener, Andrea, Lippertz, Gertjan, Uday, Anjana, Yazdanpanah, Roozbeh, Feng, Junya, Taskin, Alexey A., Ando, Yoichi
In a nanowire (NW) of a three-dimensional topological insulator (TI), the quantum-confinement of topological surface states leads to a peculiar subband structure that is useful for generating Majorana bound states. Top-down fabrication of TINWs from
Externí odkaz:
http://arxiv.org/abs/2302.01209
Autor:
Legg, Henry F., Rößler, Matthias, Münning, Felix, Fan, Dingxun, Breunig, Oliver, Bliesener, Andrea, Lippertz, Gertjan, Uday, Anjana, Taskin, A. A., Loss, Daniel, Klinovaja, Jelena, Ando, Yoichi
Publikováno v:
Nature Nanotechnology (2022)
Wireless technology relies on the conversion of alternating electromagnetic fields to direct currents, a process known as rectification. While rectifiers are normally based on semiconductor diodes, quantum mechanical non-reciprocal transport effects
Externí odkaz:
http://arxiv.org/abs/2109.05188
Autor:
Bai, Mengmeng, Wei, Xian-Kui, Feng, Junya, Luysberg, Martina, Bliesener, Andrea, Lippertz, Gertjan, Uday, Anjana, Taskin, Alexey A., Mayer, Joachim, Ando, Yoichi
Publikováno v:
Communications Materials 3, 20 (2022)
When a topological insulator is made into a nanowire, the interplay between topology and size quantization gives rise to peculiar one-dimensional states whose energy dispersion can be manipulated by external fields. In the presence of proximity-induc
Externí odkaz:
http://arxiv.org/abs/2108.08559
Autor:
Lippertz, Gertjan, Bliesener, Andrea, Uday, Anjana, Pereira, Lino M. C., Taskin, A. A., Ando, Yoichi
The quantum anomalous Hall effect (QAHE) realizes dissipationless longitudinal resistivity and quantized Hall resistance without the need of an external magnetic field. However, when reducing the device dimensions or increasing the current density, a
Externí odkaz:
http://arxiv.org/abs/2108.02081
Autor:
Reinhoffer, Chris, Mukai, Yu, Germanskiy, Semyon, Bliesener, Andrea, Lippertz, Gertjan, Uday, Anjana, Taskin, A. A., Ando, Yoichi, Wang, Zhe, van Loosdrecht, Paul H. M.
Publikováno v:
Phys. Rev. Materials 4, 124201 (2020)
We report on time-resolved mid-infrared-pump terahertz-transmission-probe studies of the topological-insulator materials $(Bi_{1-x}Sb_{x})_{2}Te_{3}$, in which by varying x charge carriers are chemically tuned to be of n-type or p-type. Relaxation dy
Externí odkaz:
http://arxiv.org/abs/2010.00877
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