5 papers
Coexistence of static order and spin dynamics in an S = 5/2 frustrated triangular antiferromagnet
U. Jena, B. Sana, Satish Kumar +6
Frustrated triangular-lattice antiferromagnets in the classical high-spin limit provide a paradigmatic setting in which the interplay of competing exchange interactions, anisotropy…
Nonlinear Hall Effect in Metal-Organic Frameworks
Sarbajit Mazumdar, Jagadish N S, Awadhesh Narayan +3
We propose metal-organic frameworks (MOFs) as tunable platforms for nonlinear Hall responses. A universal analytical downfolding scheme maps -symmetric frameworks onto star- a…
Field-Tunable Quantum Metric in Few-Layer Phosphorene
Md Afsar Reja, Arka Bandyopadhyay, Awadhesh Narayan
The quantum metric -- which quantifies the distance between quantum states -- is a fundamental component of the quantum geometric tensor, playing a crucial role in a wide range of…
Refraction Hall Effect
Ronika Sarkar, Arka Bandyopadhyay, Awadhesh Narayan +1
We introduce a new mechanism that produces a Hall-like response in time-reversal-invariant materials, driven entirely by geometric effects. Specifically, we demonstrate that a tilt…
Berry Curvature Dipole-induced Non-linear Hall Effect in Oxide Heterostructures
Nesta Benno Joseph, Arka Bandyopadhyay, Ajit C. Balram +1
The observation of non-linear Hall effects in time-reversal invariant systems has established the intriguing role of band topology beyond Berry curvature in determining transport p…