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pro vyhledávání: '"Gupta, Anjan K"'
A counterclockwise hysteresis is observed at room temperature in the transfer characteristics of SrTiO$_3$ (STO) gated MoS$_2$ field effect transistor (FET) and attributed to bistable dipoles on the STO surface. The hysteresis is expectedly found to
Externí odkaz:
http://arxiv.org/abs/2410.15112
Superconductor-to-metal transition with magnetic field and gate-voltage is studied in a Josephson junction array comprising of randomly distributed lead islands on exfoliated single-layer graphene with a back-gate. The low magnetic-field superconduct
Externí odkaz:
http://arxiv.org/abs/2408.13551
Scalable methods for improving the performance and stability of a field-effect transistor (FET) based on two-dimensional materials are crucial for its real applications. A scalable method of encapsulating the exfoliated MoS$ _{2} $ on SiO$ _{2} $/Si
Externí odkaz:
http://arxiv.org/abs/2403.05885
Resistance of a Josephson junction array consisting of randomly distributed lead (Pb) islands on exfoliated single layer graphene shows a broad superconducting transition to zero with an onset temperature close to the transition temperature of bulk P
Externí odkaz:
http://arxiv.org/abs/2401.04532
Publikováno v:
Phys. Rev. B 108, 195411 (2023)
Electrical conductivity with gate-sweep in a few layer MoS$_2$-on-SiO$_2$ field-effect-transistor shows an abrupt reduction in hysteresis when cooled. The hysteresis and time dependent conductivity of the MoS$_2$ channel are modeled using the dynamic
Externí odkaz:
http://arxiv.org/abs/2303.13902
Autor:
Gupta, Arjit Kant, Gupta, Anjan K.
A cylindrical pipe with closed ends and with a partition in-between exhibits acoustic modes in the two, thus formed, one-dimensional cavities at certain frequencies. A partial transmission through the partition leads to interaction between the two ca
Externí odkaz:
http://arxiv.org/abs/2202.08101
Autor:
Paul, Sagar, Kotagiri, Ganesh, Ganguly, Rini, Subramanian, Annapoorni, Courtois, Hervé, Winkelmann, Clemens B., Gupta, Anjan K.
Publikováno v:
Phys. Rev. B 105, L180410 (2022)
Depinning of nanoscale magnetic textures, such as domain walls, vortices and skyrmions, is of paramount importance for magnetic storage and information processing. We measure time-resolved magnetic switching statistics of an individual, non-single-do
Externí odkaz:
http://arxiv.org/abs/2201.09011
Autor:
Paul, Sagar, Kotagiri, Ganesh, Ganguly, Rini, Courtois, Hervè, Winkelmann, Clemens B., Gupta, Anjan K.
Publikováno v:
Phys. Rev. Applied 15, 024009 (2021)
Constriction-based Josephson weak-links display a thermal bi-stability between two states exhibiting zero and finite voltages. This manifests in experiments either as hysteresis in weak-links current voltage characteristics or as random telegraphic s
Externí odkaz:
http://arxiv.org/abs/2010.13349
Akademický článek
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Autor:
Biswas, Sourav, Winkelmann, Clemens B., Courtois, Hervé, Dauxois, Thierry, Biswas, Hillol, Gupta, Anjan K.
Publikováno v:
Phys. Rev. B 101, 024501 (2020)
The quantum phase-coherent behavior of superconducting weak links (WL) is often quenched in the finite voltage state, due to the heat dissipation and related thermal hysteresis. The latter can be reduced by improving heat evacuation and/or by lowerin
Externí odkaz:
http://arxiv.org/abs/1807.07720