28 citations · 95 across the 9 of their papers we have counts for
9 papers
Thin film growth of the Weyl semimetal NbAs
Wilson Yanez, Yu-Sheng Huang, Supriya Ghosh +5
We report the synthesis and characterization of thin films of the Weyl semimetal NbAs grown on GaAs (100) and GaAs (111)B substrates. By choosing the appropriate substrate, we can…
Influence of magnetic and electric fields on universal conductance fluctuations in thin films of the Dirac semi-metal Cd3As2
Run Xiao, Saurav Islam, Wilson Yanez +6
Time-reversal invariance and inversion symmetry are responsible for the topological band structure in Dirac semimetals. These symmetries can be broken by applying an external magne…
Observation of excess resistance anomaly at resistive transitions in Ag/Au nanostructures
Phanibhusan S Mahapatra, Subham Kumar Saha, Rekha Mahadevu +8
The resistive transition in nanocomposite films of silver (Ag) nanoclusters of ~ 1 nm diameter embedded in gold (Au) matrix exhibits an anomalous resistance peak at the onset of th…
Current-voltage characteristics in Ag/Au nanostructures at resistive transitions
Saurav Islam, Rekha Mahadevu, Subham Kumar Saha +7
Transitions to immeasurably small electrical resistance in thin films of Ag/Au nanostructure-based films have generated significant interest because such transitions can occur even…
Low temperature saturation of phase coherence length in topological insulators
Saurav Islam, Semonti Bhattacharyya, Hariharan Nhalil +7
Implementing topological insulators as elementary units in quantum technologies requires a comprehensive understanding of the dephasing mechanisms governing the surface carriers in…
Signature of pseudo-diffusive transport in mesoscopic topological insulators
Saurav Islam, Semonti Bhattacharyya, Hariharan Nhalil +2
One of the unique features of Dirac Fermions is pseudo-diffusive transport by evanescent modes at low Fermi energies when the disorder is low. At higher Fermi energies i.e. carrier…
Optimising Graphene Visibility in van der Waals Heterostructures
Thanmay S. Menon, Simli Mishra, Vidhu Catherine Antony +8
Graphene constitutes one of the key elements in many functional van der Waals heterostructures. However, it has negligible optical visibility due to its monolayer nature. Here we s…
Bulk-impurity induced noise in large-area epitaxial thin films of topological insulators
Saurav Islam, Semonti Bhattacharyya, Abhinav Kandala +3
We report a detailed study on low-frequency 1/f-noise in large-area molecular-beam epitaxy grown thin (10 nm) films of topological insulators as a function of temperature, gate vol…
Universal conductance fluctuations and direct observation of crossover of symmetry classes in topological insulators
Saurav Islam, Semonti Bhattacharyya, Hariharan Nhalil +2
A key feature of topological insulators (TI) is symplectic symmetry of the Hamiltonian which changes to unitary when time reversal symmetry is lifted and the topological phase tran…