Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Sangeeth Kallatt"'
Autor:
Rebti Bhushan, Arkamita Bandyopadhyay, Sangeeth Kallatt, Awalendra K. Thakur, Swapan K. Pati, Prashant Kumar
Publikováno v:
npj 2D Materials and Applications, Vol 8, Iss 1, Pp 1-11 (2024)
Abstract Insufficient carrier concentration and lack of room temperature ferromagnetism in pristine graphene limit its dream applications in electronic and spintronic chips. While theoretical calculations have revealed that graphitic ultradoping can
Externí odkaz:
https://doaj.org/article/aba9a89baa9045ba9363687cb1229047
Autor:
Albert Hertel, Michaela Eichinger, Laurits O. Andersen, David M.T. van Zanten, Sangeeth Kallatt, Pasquale Scarlino, Anders Kringhøj, José M. Chavez-Garcia, Geoffrey C. Gardner, Sergei Gronin, Michael J. Manfra, András Gyenis, Morten Kjaergaard, Charles M. Marcus, Karl D. Petersson
Publikováno v:
Physical Review Applied. 18
We present a gate-voltage tunable transmon qubit (gatemon) based on planar InAs nanowires that are selectively grown on a high resistivity silicon substrate using III-V buffer layers. We show that low loss superconducting resonators with an internal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::749af46f61601ab87bee869edfabdd71
https://doi.org/10.1103/physrevapplied.18.034042
https://doi.org/10.1103/physrevapplied.18.034042
Publikováno v:
Das, S, Kallatt, S, Abraham, N & Majumdar, K 2020, ' Gate-tunable trion switch for excitonic device applications ', Physical Review B, vol. 101, no. 8, 081413 . https://doi.org/10.1103/PhysRevB.101.081413
Trions are excitonic species with a positive or negative charge, and thus, unlike neutral excitons, the flow of trions can generate a net detectable charge current. Trions under favorable doping conditions can be created in a coherent manner using re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff6c03eba586db00b96c5e48ee17a7e5
Autor:
Kausik Majumdar, Garima Gupta, Nithin Abraham, Medha Dandu, Sarthak Das, Sangeeth Kallatt, Takashi Taniguchi, Kenji Watanabe, Krishna Murali
Publikováno v:
Das, S, Dandu, M, Gupta, G, Murali, K, Abraham, N, Kallatt, S, Watanabe, K, Taniguchi, T & Majumdar, K 2020, ' Highly Tunable Layered Exciton in Bilayer WS2 : Linear Quantum Confined Stark Effect versus Electrostatic Doping ', ACS Photonics, vol. 7, no. 12, pp. 5386-5393 . https://doi.org/10.1021/acsphotonics.0c01159
In 1H monolayer transition metal dichalcogenide, the inversion symmetry is broken, while the reflection symmetry is maintained. On the contrary, in the bilayer, the inversion symmetry is restored, but the reflection symmetry is broken. As a consequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf113750a146730c3a39ca382ab98714
Graphene, owing to its zero bandgap electronic structure, is promising as an absorption material for ultra-wideband photodetection applications. However, graphene-absorption based detectors inherently suffer from poor responsivity due to weak absorpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16f3f94d45b7afb8d963294f36f04484
http://arxiv.org/abs/1908.06924
http://arxiv.org/abs/1908.06924
Publikováno v:
Communications Physics, Vol 2, Iss 1, Pp 1-9 (2019)
Conventional metals, in general, do not exhibit strong photoluminescence. 2H-TaSe2 is a layered transition metal dichalcogenide that possesses metallic property with charge density wave characteristics. Here we show that 2H-TaSe2 exhibits a surprisin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33b8a668d9d5a65dc131cd587c993a11
https://doi.org/10.1038/s42005-019-0190-0
https://doi.org/10.1038/s42005-019-0190-0
Publikováno v:
ACS applied materialsinterfaces. 11(33)
Graphene, owing to its zero-band-gap electronic structure, is promising as an absorption material for ultra-wideband photodetection applications. However, graphene-absorption-based detectors inherently suffer from poor responsivity because of weak ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ba43d86c3f3af7dfa1698f7509ac12a9
https://pubmed.ncbi.nlm.nih.gov/31347352
https://pubmed.ncbi.nlm.nih.gov/31347352
Publikováno v:
npj 2D Materials and Applications, Vol 3, Iss 1, Pp 1-8 (2019)
The possibility of electrical manipulation and detection of charged exciton (trion) before its radiative recombination makes it promising for excitonic devices. Using a few-layer graphene/monolayer WS$_{2}$/monolayer graphene vertical heterojunction,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa18d0336357409e8845b1d1b9e66760
https://doi.org/10.1038/s41699-019-0097-3
https://doi.org/10.1038/s41699-019-0097-3
Autor:
Sarthak Das, Rabindra Biswas, Medha Dandu, Mehak Mahajan, Sangeeth Kallatt, Kausik Majumdar, Suman Chatterjee, Varun Raghunathan
The strong light-matter interaction in monolayer transition metal dichalcogenides (TMDs) is promising for nanoscale optoelectronics with their direct band gap nature and the ultra-fast radiative decay of the strongly bound excitons these materials ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b9f0c40af46e24bcdaf503c770aaeb1
Publikováno v:
Nanotechnology. 29(3)
High gain photoconductive devices find wide spread applications in low intensity light detection. Ultra-thin layered materials have recently drawn a lot of attention from researchers in this regard. However, in general, a large operating voltage is r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::52fa19548c7e6f88a0aebc81f6abe71a
https://pubmed.ncbi.nlm.nih.gov/29144282
https://pubmed.ncbi.nlm.nih.gov/29144282