Zobrazeno 1 - 10
of 47
pro vyhledávání: '"John Jesudasan"'
We extract the vortex lattice parameters using low-frequency two-coil mutual inductance measurements in a 20-nm-thick superconducting a-MoGe thin film. We fit the temperature dependence of ac penetration depth in the mixed state using a model develop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f02c45362ecac57e2b6ed6e38f6a11c
http://arxiv.org/abs/2211.04276
http://arxiv.org/abs/2211.04276
Autor:
Biswajit Datta, Raghav Dhingra, Rajib Mondal, Mandar M. Deshmukh, John Jesudasan, Arumugam Thamizhavel, Subhamoy Ghatak, Jaykumar Vaidya
We report on the fabrication of nano-devices on the \hkl[-1 0 1] surface of a Weyl semimetal, a macroscopic crystal of TaAs, and low-temperature transport measurements. We can implement electron beam lithography by peeling off and transferring the re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::368f465d3344417d247098e66b9c7a62
http://arxiv.org/abs/2110.01793
http://arxiv.org/abs/2110.01793
Autor:
Avishai Benyamini, Kenji Watanabe, Pratap Raychaudhuri, Evan J. Telford, Takashi Taniguchi, John Jesudasan, James Hone, Da Wang, Abhay Pasupathy, Cory Dean
Publikováno v:
Nano letters. 21(19)
Hybrid superconductor/graphene (SC/g) junctions are excellent candidates for investigating correlations between Cooper pairs and quantum Hall (QH) edge modes. Experimental studies are challenging as Andreev reflections are extremely sensitive to junc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c44682b747fa4f3a5c6955c102b2773
https://pubmed.ncbi.nlm.nih.gov/34569787
https://pubmed.ncbi.nlm.nih.gov/34569787
Publikováno v:
Physical Review B. 103
In a Type II superconductor, the vortex core behaves like a normal metal. Consequently, the single-particle density of states in the vortex core of a conventional Type II superconductor remains either flat or (for very clean single crystals) exhibits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76fe2e21bab1ac3affec5cf36a149f5d
https://doi.org/10.1103/physrevb.103.214512
https://doi.org/10.1103/physrevb.103.214512
Autor:
Kazi Rafsanjani Amin, John Jesudasan, Hemanta Kumar Kundu, Subroto Mukerjee, Pratap Raychaudhuri, Aveek Bid
We explore the effects of sample dimensionality on vortex pinning in a type-II, low-$T_C$, s-wave superconductor, NbN, in the presence of a perpendicular magnetic field, $H$. We find significant differences in the phase diagrams in the magnetic field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4178d691e54fec556d7b5254d4a4d61
http://arxiv.org/abs/2009.09236
http://arxiv.org/abs/2009.09236
Autor:
Surajit Dutta, Lara Benfatto, Pratap Raychaudhuri, Vivas Bagwe, Soumyajit Mandal, Somak Basistha, Arumugam Thamizhavel, Indranil Roy, John Jesudasan
Superconductivity occurs in metals when attractive interactions between electrons promote the formation of Cooper pairs which get locked in a phase-coherent state, leading to superfluid behavior. In situations where the phase stiffness falls below th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62ddd1ad3ee9d490920ea2100141c70b
http://arxiv.org/abs/2003.12398
http://arxiv.org/abs/2003.12398
Autor:
Vivas Bagwe, Pratap Raychaudhuri, Soumyajit Mandal, Surajit Dutta, John Jesudasan, Indranil Roy
Publikováno v:
Physical Review B. 100
Recently, detailed real space imaging using scanning tunneling spectroscopy of the vortex lattice in a weakly pinned a-MoGe thin film revealed that the vortex lattice melts in two steps with temperature or magnetic field, going first from a vortex so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b09c68f98ed8d5dc03e72beeceb9fd70
https://doi.org/10.1103/physrevb.100.214518
https://doi.org/10.1103/physrevb.100.214518
Autor:
Pratap Raychaudhuri, Soumyajit Mandal, Somak Basistha, Vivas Bagwe, Indranil Roy, John Jesudasan, Surajit Dutta
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 32(7)
We investigate the magnetic field variation of the thermally activated flux flow resistivity, ρ TAFF and flux flow critical current density, J c, in a weakly pinned thin film of the amorphous superconductor a-MoGe, where vortices are in a fluid stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::961403d08b526a2ff7c3c68d809e5f22
https://pubmed.ncbi.nlm.nih.gov/31665705
https://pubmed.ncbi.nlm.nih.gov/31665705
Autor:
John Jesudasan, Giulia Venditti, Lara Benfatto, Nicolas Bergeal, J. Biscaras, S. Hurand, Sergio Caprara, R. C. Budhani, Jerome Lesueur, Anjana Dogra, Mintu Mondal, Pratap Raychaudhuri
Publikováno v:
Physical Review B. 100
One of the hallmarks of the Berezinskii-Kosterlitz-Thouless (BKT) transition in two-dimensional superconductors is the universal jump of the superfluid density that can be indirectly probed via the nonlinear exponent of the current-voltage $I\text{\e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2727e36294822e4315cf38f106ffd6c1
https://doi.org/10.1103/physrevb.100.064506
https://doi.org/10.1103/physrevb.100.064506
Autor:
Indranil, Roy, Surajit, Dutta, Roy Choudhury, Aditya N., Somak, Basistha, Maccari, Ilaria, Soumyajit, Mandal, John, Jesudasan, Vivas, Bagwe, Castellani, Claudio, Benfatto, Lara, Pratap, Raychaudhuri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3686::b861b174a9580f53e303c0a64e28a0e7
http://hdl.handle.net/11573/1119257
http://hdl.handle.net/11573/1119257