10 papers
Superconducting cavity probes sliding ferroelectricity in small-angle twisted WSe
Krishnendu Maji, Supriya Mandal, Sriram H. +8
Ferroelectricity is a property of materials that exhibit spontaneous charge polarization. Ferroelectricity in 2D materials is interesting because of their applications in memory de…
Probing tunable Kerr nonlinearity in graphene Josephson junctions
Priyanka Samanta, Joydip Sarkar, Ashish Abhraham Samuel +4
Josephson junction (JJ) is a key nonlinear element in superconducting devices such as qubits, amplifiers, and bolometers. Recently, gate-tunable JJs based on graphene and semicondu…
New frontiers in quantum science and technology using van der Waals Josephson junctions
Joydip Sarkar, Ayshi Mukherjee, Amit Basu +3
Over the last decade, the development of Josephson devices based on van der Waals (vdW) materials has advanced rapidly, representing a paradigm shift driven by the advent of 2D mat…
Umklapp-Enhanced Interlayer Valley Drag in Moiré Bilayers
Ritajit Kundu, Mandar M. Deshmukh, Herbert A. Fertig +1
Van der Waals materials may be combined to form moiré patterns that are effectively crystal lattices. These systems are unique in that their in-plane unit cell sizes may be orders…
Quantum interference in a twisted high-Tc SQUID senses emergent interfacial order
Amit Basu, Samrat Ash, Ritajit Kundu +12
Engineering artificial systems by twisting and stacking van der Waals materials has proven to be an excellent platform for exploring emergent quantum phenomena that can be signific…
Modulation of quantum geometry and its coupling to pseudo-electric field by dynamic strain
Surat Layek, Mahesh A. Hingankar, Ayshi Mukherjee +11
Two-dimensional materials are a fertile ground for exploring quantum geometric phenomena, with Berry curvature and its first moment, the Berry curvature dipole, playing a central r…