Statics and dynamics of skyrmions interacting with disorder and nanostructures

C Reichhardt, CJO Reichhardt, MV Milošević - Reviews of Modern Physics, 2022 - APS
Magnetic skyrmions are topologically stable nanoscale particlelike objects that were
discovered in 2009. Since that time, intense research interest in the field has led to the …

Nonlinear dynamics, avalanches, and noise for driven Wigner crystals

C Reichhardt, CJO Reichhardt - Physical Review B, 2022 - APS
We consider the driven dynamics of Wigner crystals interacting with random disorder. Using
numerical simulations, we find a rich variety of transport phenomena as a function of charge …

[HTML][HTML] Angular dependence of vortex instability in a layered superconductor: the case study of Fe (Se, Te) material

G Grimaldi, A Leo, A Nigro, S Pace, V Braccini… - Scientific Reports, 2018 - nature.com
Anisotropy effects on flux pinning and flux flow are strongly effective in cuprate as well as
iron-based superconductors due to their intrinsically layered crystallographic structure …

Vortex depinning as a nonequilibrium phase transition phenomenon: Scaling of current-voltage curves near the low and the high critical-current states in  …

B Bag, DJ Sivananda, P Mandal, SS Banerjee… - Physical Review B, 2018 - APS
The vortex depinning phenomenon in single crystals of 2 H-Nb S 2 superconductors is used
as a prototype for investigating properties of the nonequilibrium (NEQ) depinning phase …

Entropy-driven nonequilibrium phonon-stimulated electron-phonon coupling in tin dioxide nanorods

G Mallik, A Kabiraj, DK Swain, PP Dash, P Kumari… - Physical Review E, 2024 - APS
Nonequilibrium (NEQ) phonon fluctuation in a nanosystem has been studied through the
statistical assessment of the entropy-production and-consumption events in ultrasmall tin …

Observation of non-equilibrium fluctuation in the shear-stress-driven hemoglobin aggregates

A Kabiraj, G Mallik, PP Dash, P Kumari… - The European Physical …, 2023 - Springer
Non-equilibrium fluctuations caused by the rearrangement of hemoglobin molecules into an
aggregate state under shear stress have been investigated experimentally. The flow …

Exploring the non-equilibrium fluctuation relation for quantum mechanical tunneling of electrons across a modulating barrier

DJ Sivananda, N Roy, PC Mahato, SS Banerjee - Physical Review Research, 2020 - APS
We study the validity of the fluctuation relation for a non-equilibrium quantum mechanical
system, viz., electrons quantum mechanically tunneling across a periodically modulating …

Negative differential resistance state in the free-flux-flow regime of driven vortices in a single crystal of

B Bag, SM Karan, G Shaw, AK Sood, AK Grover… - Physical Review B, 2021 - APS
Time series measurements [G. Shaw, Phys. Rev. B 85, 174517 (2012) 10.1103/PhysRevB.
85.174517; B. Bag, Sci. Rep. 7, 5531 (2017) 10.1038/s41598-017-05191-6] in 2 H-NbS 2 …

Interplay of superconductivity and magnetic fluctuations in single crystals of BaFe2-xCoxAs2

B Bag, A Kumar, SS Banerjee, K Vinod… - AIP Conference …, 2018 - pubs.aip.org
We report unusual pinning response in optimally doped and overdoped single crystals of
BaFe2-xCoxAs2. Here we use magneto-optical imaging technique to measure the local …