6 papers
Correlated flat-band physics in a bilayer kagome metal based on compact molecular orbitals
Mounica Mahankali, Fang Xie, Yuan Fang +11
Flat bands, when located close to the Fermi energy, can considerably enhance the influence of electron correlations on the low energy physics in kagome and other frustrated-lattice…
Resolving the Kagome Origin of the Strange Metallicity in NiIn
Jean C. Souza, Moshe Haim, Ambikesh Gupta +15
Strong correlations promote singular properties such as strange metallicity, which shows considerable commonality across quantum materials platforms. Understanding the mechanism fo…
Concurrent Multifractality and Anomalous Hall Response in the Nodal Line Semimetal FeGeTe Near Localization
Subramanian Mathimalar, Ambikesh Gupta, Yotam Roet +19
Topological states of matter exhibit unique protection against scattering by disorder. Different topological classes exhibit distinct forms and degrees of protection. Here, we inve…
Topotactic Growth of Zintl Phase EuInAs Nanowires with Antiferromagnetic Behavior
Man Suk Song, Lothar Houben, Nadav Rothem +5
We demonstrate a topotactic transformation of zincblende InAs(Sb) nanowires into the Zintl phase EuInAs through a vapor-solid mutual exchange process involving Eu and I…
Visualizing incommensurate inter-valley coherent states in rhombohedral trilayer graphene
Yiwen Liu, Ambikesh Gupta, Youngjoon Choi +13
ABC-stacked rhombohedral graphene multilayers exhibit a wide variety of electronic ground states characterized by broken isospin symmetry and superconductivity. Recently, indirect…
Spectroscopic Visualization of Hard Quasi-1D Superconductivity Induced in Nanowires Deposited on a Quasi-2D Indium film
Ambikesh Gupta, Pranab Kumar Nag, Shai Kiriati +6
Following significant progress in the visualization and characterization of hybrid superconducting-semiconducting systems, greatly propelled by reports of Majorana zero modes in na…