4 papers
Sound Induced Hall Currents in Weyl Exciton Insulators
Xinhong Zhou, Varsha Subramanyan, Qing-Dong Jiang
Weyl semimetals exhibit anomalous transport controlled by their gapless chiral nodes, while gapped Weyl systems are often expected to lose such distinctive responses. Here we show…
Geometry contribution to sound attenuation in double-Weyl semimetals
Varsha Subramanyan, Shi-Zeng Lin, Avadh Saxena
The axial coupling of strain to the nodes of the simple Weyl semimetals leads to anomalous contributions to sound attenuation in such materials. However, in double Weyl semimetals,…
Geometric transport signatures of strained multi-Weyl semimetals
Varsha Subramanyan, Shi-Zeng Lin, Avadh Saxena
The minimal coupling of strain to Dirac and Weyl semimetals, and its modeling as a pseudo-gauge field has been extensively studied, resulting in several proposed topological transp…
Spin-Triplet Excitonic Insulator in the Ultra-Quantum Limit of HfTe5
Jinyu Liu, Varsha Subramanyan, Robert Welser +8
More than fifty years ago, excitonic insulators, formed by the pairing of electrons and holes due to Coulomb interactions, were first predicted. Since then, excitonic insulators ha…