77 citations · 241 across the 9 of their papers we have counts for
9 papers
Tunable Electronic Interactions and Weak Antilocalization in Bulk GeSbTeSe Phase Change Materials
Nicholas Mazzucca, Junjing Zhao, Zhenyang Xu +3
Phase change materials (PCMs) are well-known for their reversible and rapid switching between crystalline and amorphous phases through thermal excitations mediated by strong electr…
Denoising and feature extraction in photoemission spectra with variational auto-encoder neural networks
Francisco Restrepo, Junjing Zhao, Utpal Chatterjee
In recent years, distinct machine learning (ML) models have been separately used for feature extraction and noise reduction from energy-momentum dispersion intensity maps obtained…
Metal-to-insulator transition in Pt-doped TiSe driven by emergent network of narrow transport channels
Kyungmin Lee, Jesse Choe, Davide Iaia +13
Metal-to-insulator transitions (MIT) can be driven by a number of different mechanisms, each resulting in a different type of insulator -- Change in chemical potential can induce a…
Evidence for breathing-type pseudo Jahn-Teller distortions in the charge density wave phase of 1-TiSe
A. Wegner, J. Zhao, J. Li +5
The charge density wave (CDW) phase in 1-TiSe is investigated using angle resolved photoemission spectroscopy (ARPES) and neutron scattering measurements. Our ARPES results…
Spectroscopic signature of the -dependent electron-phonon coupling in -TaS
K. Wijayaratne, J. Zhao, C. D. Malliakas +3
Our detailed Angle Resolved Photoemission Spectroscopy (ARPES) study of -TaS, a canonical incommensurate charge density wave (CDW) material, illustrates pronounced many-bod…
Orbital selectivity causing anisotropy and particle-hole asymmetry in the charge density wave gap of -TaS
J. Zhao, K. Wijayaratne, A. Butler +8
We report an in-depth Angle Resolved Photoemission Spectroscopy (ARPES) study on -TaS, a canonical incommensurate Charge Density Wave (CDW) system. This study demonstrates…
Universal features in the photoemission spectroscopy of high temperature superconductors
J. Zhao, U. Chatterjee, D. Ai +9
The energy gap for electronic excitations is one of the most important characteristics of the superconducting state, as it directly refects the pairing of electrons. In the copper-…
Electronic phase diagram of high temperature copper oxide superconductors
U. Chatterjee, J. Zhao, D. Ai +8
In order to understand the origin of high-temperature superconductivity in copper oxides, we must understand the normal state from which it emerges. Here, we examine the evolution…
Observation of a d-wave nodal liquid in highly underdoped Bi_2Sr_2CaCu_2O_{8+δ}
U. Chatterjee, M. Shi, D. Ai +15
We use angle resolved photoemission spectroscopy to probe the electronic excitations of the non-superconducting state that exists between the antiferromagnetic Mott insulator at ze…