activity
20182025
most citedMelting of the vortex lattice through intermediate hexatic fluid in a-MoGe thin film

65 citations · 130 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.supr-con2025★ 2 cited

Non-linear vortex dynamics in the mixed state of superconducting a-MoGe and NbN thin films using low-frequency two-coil mutual inductance technique

Somak Basistha, Soumyajit Mandal, John Jesudasan +2

We use a two-coil mutual inductance technique to investigate the non-linear response of the vortex lattice of two type-II superconducting thin films, namely a very weakly pinned am…

cond-mat.supr-con2024★ 5 cited

Inverse melting and re-entrant transformations of the vortex lattice in amorphous Re6Zr thin film

Rishabh Duhan, Subhamita Sengupta, John Jesudasan +2

Melting of a solid is one of the most ubiquitous phenomena observed in nature. Most solids, when heated, melt from a crystalline state to an isotropic liquid at a characteristic te…

cond-mat.supr-con2023★ 13 cited

Origin of superconductivity in tungsten thin films

Vivas Bagwe, Rishabh Duhan, Bhagyashree Chalke +3

The most common allotrope of tungsten, α-W, has a superconducting transition at a temperature of ~11 mK. However, two other forms of tungsten have been reported to have superconduc…

cond-mat.supr-con2023★ 5 cited

Low frequency electrodynamics in the mixed state of superconducting NbN and a-MoGe films using two-coil mutual inductance technique

Somak Basistha, Soumyajit Mandal, John Jesudasan +2

We investigate the low-frequency electrodynamics in the vortex state of two type-II superconducting films, namely, a moderate-to-strongly pinned Niobium Nitride (NbN) and a very we…

cond-mat.supr-con2023★ 11 cited

Structure and dynamics of a pinned vortex liquid in superconducting a-Re_xZr (x ~ 6) thin film

Rishabh Duhan, Subhamita Sengupta, Ruchi Tomar +4

We report the formation of a pinned vortex liquid spanning a very large region of the magnetic field-temperature parameter space in a 5 nm thick amorphous superconducting Re_xZr (x…

cond-mat.supr-con2022★ 2 cited

Study of vortex dynamics in an a-MoGe thin film using low-frequency two-coil mutual inductance measurements

Soumyajit Mandal, Somak Basistha, John Jesudasan +2

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 depen…

cond-mat.supr-con2020★ 27 cited

Destruction of superconductivity through phase fluctuations in ultrathin a-MoGe films

Soumyajit Mandal, Surajit Dutta, Somak Basistha +6

We investigate the evolution of superconductivity with decreasing film thickness in ultrathin amorphous MoGe (a-MoGe) films using a combination of sub-Kelvin scanning tunneling spe…

cond-mat.supr-con2019

Evidence of quantum vortex fluid in the mixed state of a very weakly pinned a-MoGe thin film

Surajit Dutta, Indranil Roy, Soumyajit Mandal +4

Quantum fluids refer to a class of systems that remain in fluid state down to absolute zero temperature. In this letter, using a combination of magnetotransport and scanning tunnel…

cond-mat.supr-con2018★ 65 cited

Melting of the vortex lattice through intermediate hexatic fluid in a-MoGe thin film

Indranil Roy, Surajit Dutta, Aditya N. Roy Choudhury +8

The hexatic fluid refers to a phase in between a solid and a liquid which has short range positional order but quasi-long range orientational order. In the celebrated theory of Ber…