91 citations · 327 across the 14 of their papers we have counts for
15 papers
Flow field disturbance due to point viscosity variations in a heterogeneous fluid
Debasish Das
We derive the flow field disturbance produced by point viscosity variations in a heterogeneous fluid when subject to a background flow while neglecting fluid inertia. The disturban…
Transition to bound states for bacteria swimming near surfaces
Debasish Das, Eric Lauga
It is well known that flagellated bacteria swim in circles near surfaces. However, recent experiments have shown that a sulfide-oxidizing bacterium named Thiovulum majus can transi…
Active particles powered by Quincke rotation in a bulk fluid
Debasish Das, Eric Lauga
Dielectric particles suspended in a weakly conducting fluid are known to spontaneously start rotating under the action of a sufficiently strong uniform DC electric field due to the…
Self-organization of swimmers drives long-range fluid transport in bacterial colonies
Haoran Xu, Justas Dauparas, Debasish Das +2
Bacteria commonly live in structured communities that affect human health and influence ecological systems. Heterogeneous populations, such as motile and non-motile populations, of…
Skyrmion Based Spin-Torque Nano-Oscillator
Debasis Das, Bhaskaran Muralidharan, Ashwin Tulapurkar
Using micromagnetic simulation, we investigate the self-sustained oscillation of magnetic skyrmion in a ferromagnetic circular nanodot, driven by spin-torque which is generated fro…
Effects of Elastic Dephasing on Scaling of ultra-small Magnetic Tunnel Junctions
Debasis Das, Ashwin Tulapurkar, Bhaskaran Muralidharan
The study of the effects of scaling on magnetic tunnel junction (MTJ) devices has become an important topic in the field of spin-based memory devices. Here, we investigate the effe…