15 citations · 89 across the 14 of their papers we have counts for
14 papers
Topological defect-mediated corner states and higher-order bulk topology in a two-dimensional crystalline insulator
Manideep Gone, Srijata Lahiri, Nabyendu Das
We report appearance of non-trivial zero energy corner modes in the form of topological defects (trimers) in a carefully designed 2D crystalline topological insulator. The proposed…
Optical phonon contribution to the thermal conductivity of a quantum paraelectric
Pankaj Bhalla, Nabyendu Das
Motivated by recent experimental findings, we study the contribution of a quantum critical optical phonon branch to the thermal conductivity of a paraelectric system. We consider t…
Observation of the possible chiral edge mode in Bi1-xSbx
M. Sasaki, A. Ohnishi, Nabyendu Das +2
After the classification of topological states of matter has been clarified for non-interacting electron systems, the theoretical connection between gapless boundary modes and nont…
Finite frequency Seebeck coefficient of metals: A memory function approach
Pankaj Bhalla, Pradeep Kumar, Nabyendu Das +2
We study the dynamical thermoelectric transport in metals subjected to the electron-impurity and the electron-phonon interactions using the memory function formalism. We introduce…
Theory of the Dynamical Thermal conductivity of Metals
Pankaj Bhalla, Pradeep Kumar, Nabyendu Das +2
The Mori's projection method, known as memory function method is an important theoretical formalism to study various transport coefficients. In the present work, we calculate the d…
Moment Expansion to the Memory Function for Generalized Drude Scattering rate
Pankaj Bhalla, Nabyendu Das, Navinder Singh +1
The memory function formalism is an important tool to evaluate the frequency dependent electronic conductivity. It is previously used within some approximations in the case of elec…