Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Sergey Suchalkin"'
Autor:
Yuxuan Jiang, Maksim Ermolaev, Gela Kipshidze, Seongphill Moon, Mykhaylo Ozerov, Dmitry Smirnov, Zhigang Jiang, Sergey Suchalkin
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Semiconductors with large Landé g-factors allow for both highly spin-polarized states, and precise control of the spin dynamics. Here, the authors make superlattices of two semiconductors, InSb, and InAsSb, and by tuning the conduction and valence b
Externí odkaz:
https://doaj.org/article/71dfbd6820e041638226f06388b9a90d
Autor:
Yuxuan Jiang, Maksim Ermolaev, Gela Kipshidze, Seongphill Moon, Mykhaylo Ozerov, Dmitry Smirnov, Zhigang Jiang, Sergey Suchalkin
Realizing a large Landé g-factor of electrons in solid-state materials has long been thought of as a rewarding task as it can trigger abundant immediate applications in spintronics and quantum computing. Here, by using metamorphic InAsSb/InSb superl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18d592b3cfab22259a50964dd7ea41a1
http://arxiv.org/abs/2201.01938
http://arxiv.org/abs/2201.01938
Autor:
Sergey Suchalkin, Boris Laykhtman, G. Belenky, Stefan P. Svensson, Gela Kipshidze, Jhair Alzamora
Publikováno v:
Solid State Communications. 358:115010
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e1133082ac30f57d9a67e6b062b1bca
https://doi.org/10.1016/j.ssc.2022.115010
https://doi.org/10.1016/j.ssc.2022.115010
Publikováno v:
Superlattices and Microstructures. 128:438-442
We show that in superlattices with a strong band inversion no hybridization gap exists. There are two points where the bands are crossing and the spectrum has a shape of Dirac cones. Due to the absence of the hybridization gap the optical absorption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fe0d242d3f7858b48b2e8e8372dfb6
https://doi.org/10.1016/j.spmi.2019.03.001
https://doi.org/10.1016/j.spmi.2019.03.001
The system of double quantum wells separated by barriers is suggested for switching and modulation of light. The system has potential for high operational speed and large modulation depth.
Comment: 9 pages, 2 figures
Comment: 9 pages, 2 figures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0793ba3330ab7d1fa8a4724c37f8bad1
Autor:
Gela Kipshidze, Maksim Ermolaev, Takashi Hosoda, Youxi Lin, Gregory Belenky, Leon Shterengas, Sergey Suchalkin
Publikováno v:
IEEE Photonics Technology Letters. 30:869-872
Mid-infrared light emitting diodes based on cascade pumping of the type-I quantum wells were designed and fabricated. The 500- $\mu \text{m}$ -diameter mesa ten-stage devices emitted more than 2 mW of continuous wave power in a wide spectrum peaking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a4ee6beb7145806ac0915763c7b31a8
https://doi.org/10.1109/lpt.2018.2822621
https://doi.org/10.1109/lpt.2018.2822621
Autor:
Seongphill Moon, Yuxuan Jiang, Dmitry Smirnov, David Graf, Gregory Belenky, Gela Kipshidze, Leon Shterengas, Stefan P. Svensson, Sergey Suchalkin, Maksim Ermolaev, Wendy L. Sarney, Boris Laikhtman
Publikováno v:
Nano Letters. 18:412-417
Quasiparticles with Dirac type dispersion can be observed in nearly gapless bulk semiconductors alloys where the bandgap is controlled through the material composition. We demonstrate that the Dirac dispersion can be realized in short period InAs1-xS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b205092a819c2079e37a6e76d37f687a
https://doi.org/10.1021/acs.nanolett.7b04304
https://doi.org/10.1021/acs.nanolett.7b04304
Publikováno v:
Superlattices and Microstructures. 111:230-240
We show that widely used method of spectrum calculation in heterostructures based on effective mass approximation in each separate layer gives wrong results for the in-plane spectrum. We develop a new approach that is effective mass approximation in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2080d2a2f72b847ca0704c697d3ec521
https://doi.org/10.1016/j.spmi.2017.06.043
https://doi.org/10.1016/j.spmi.2017.06.043
Publikováno v:
Superlattices and Microstructures. 100:142-147
We demonstrate a two-contact, bi-directional, dual color light emitting diode with superlattice active regions operated at wavelengths near 4 μm and 8 μm. The operational wavelength of the device is controlled by the bias polarity. A modification o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::988e8719faa163bc47c2c3ddfe5754cd
https://doi.org/10.1016/j.spmi.2016.09.019
https://doi.org/10.1016/j.spmi.2016.09.019
Autor:
Gregory Belenky, Stefan P. Svensson, Zhigang Jiang, Seongphill Moon, Sergey Suchalkin, Maksim Ermolaev, Gela Kipshidze, Yuxuan Jiang, Dmitry Smirnov, Wendy L. Sarney, Tonica Valla, Mykhaylo Ozerov
A Dirac-type energy spectrum was demonstrated in gapless ultrashort-period metamorphic InAsSb/InSb superlattices by angle-resolved photoemission spectroscopy (ARPES) measurements. The Fermi velocity value of 7.4 × 105 m/s in a gapless superlattice w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31aac1447dab97aa36100cbebd618398
http://arxiv.org/abs/1909.12293
http://arxiv.org/abs/1909.12293