68 citations · 124 across the 14 of their papers we have counts for
14 papers
A Quieter State of Charge -- Ultra-Low-Noise Collective Current in Charge-Density-Wave Nanowires
Subhajit Ghosh, Nicholas Sesing, Tina Salguero +3
Electronic flicker noise limits phase stability in communication systems, reduces the sensitivity and selectivity of sensors, and degrades coherence in quantum devices. There is a…
Solution-Processed Inks with Fillers of NbS Quasi-One-Dimensional Charge-Density-Wave Material
Tekwam Geremew, Maedeh Taheri, Nicholas Sesing +4
We report on the solution processing and testing of electronic ink comprised of quasi-one-dimensional NbS charge-density-wave fillers. The ink was prepared by liquid-phase exfo…
Electronic Noise Spectroscopy of Quasi-2D van der Waals Antiferromagnetic Semiconductors
Subhajit Ghosh, Zahra Ebrahim Nataj, Fariborz Kargar +1
We investigated low-frequency current fluctuations, i.e. electronic noise, in FePS3 van der Waals, layered antiferromagnetic semiconductor. The noise measurements have been used as…
The Noise of the Charge Density Waves in NbSe Nanowires -- Contributions of Electrons and Quantum Condensate
Subhajit Ghosh, Sergey Rumyantsev, Alexander A. Balandin
Low-frequency electronic noise in charge-density-wave van der Waals materials has been an important characteristic, providing information about the material quality, phase transiti…
Phonon States in NbTe and TaTe Quasi-One-Dimensional van der Waals Crystals
Zahra Ebrahim Nataj, Fariborz Kargar, Sergiy Krylyuk +7
We report the results of polarization-dependent Raman spectroscopy of phonon states in single-crystalline quasi-one-dimensional NbTe and TaTe van der Waals materials. The m…
Temperature Dependent Low-Frequency Noise Characteristics of NiO/GaO p-n Heterojunction Diodes
Subhajit Ghosh, Dinusha Herath Mudiyanselage, Fariborz Kargar +3
We report on the temperature dependence of the low-frequency electronic noise in NiO/GaO p-n heterojunction diodes. The noise spectral density is of the 1/f-type near r…
Challenges in Interpreting the NANOGrav 15-Year Data Set as Early Universe Gravitational Waves Produced by ALP Induced Instability
Michael Geller, Subhajit Ghosh, Sida Lu +1
In this paper, we study a possible early universe source for the recent observation of a stochastic gravitational wave background at the NANOGrav pulsar timing array. The source is…
On the number of components of random polynomial lemniscates
Subhajit Ghosh
A lemniscate of a complex polynomial of degree is a sublevel set of its modulus, i.e., of the form for some In general, the nu…
Low-Frequency Electronic Noise in the Aluminum Gallium Oxide Schottky Barrier Diodes
Subhajit Ghosh, Dinusha Herath Mudiyanselage, Sergey Rumyantsev +5
We report on the low-frequency electronic noise in (AlGa)O Schottky barrier diodes. The noise spectral density reveals 1/f dependence, characteristic of the fli…
The magnificent ACT of flavor-specific neutrino self-interaction
Anirban Das, Subhajit Ghosh
We revisit the cosmology of neutrino self-interaction and use the latest cosmic microwave background data from the Atacama Cosmology Telescope (ACT) and the Planck experiment to co…
Specifics of the Elemental Excitations in "True One-Dimensional" MoI van der Waals Nanowires
Fariborz Kargar, Zahra Barani, Nicholas R. Sesing +15
We report on the temperature evolution of the polarization-dependent Raman spectrum of exfoliated MoI, a van der Waals material with a "true one-dimensional" crystal structure…
Signatures of generalized ALP interactions in SM decays of mesons
Subhajit Ghosh, Triparno Bandyopadhyay, Tuhin S. Roy
In addition to giving rise to spectacular new physics signals in the final states of meson decays, Axion-like-particles also induce modifications in the standard model decays of me…
Low-Frequency Noise Characteristics of GaN Vertical PIN Diodes -- Effects of Current and Temperature
Subhajit Ghosh, Kai Fu, Fariborz Kargar +3
We report low-frequency noise characteristics of vertical GaN PIN diodes, focusing on the effects of the diode design, current and temperature. The as-grown and regrown diodes, wit…
Flavor-specific Interaction Favors Strong Neutrino Self-coupling in the Early Universe
Anirban Das, Subhajit Ghosh
Flavor-universal neutrino self-interaction has been shown to ease the tension between the values of the Hubble constant measured from early and late Universe data. We introduce a s…