101 citations · 530 across the 19 of their papers we have counts for
17 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…
Particle-hole symmetry in the pseudogap phase of moderately underdoped cuprate high temperature superconductors evidenced from joint density of states analysis
Niraj Kumar Shah, Junjing Zhao, Utpal Chatterjee
In conventional superconductors, the energy scale associated with the superfluid stiffness is much larger compared to the pairing energy and hence, the superconducting transition t…
Coupled electronic and magnetic excitations in the cuprates and their role in the superconducting transition
Francisco Restrepo, Utpal Chatterjee, Genda Gu +3
The formation of Cooper pairs, a bound state of two electrons of opposite spin and momenta by exchange of a phonon [1], is a defining feature of conventional superconductivity. In…
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…
Spectroscopic fingerprints of many-body renormalizations in-TiSe
J. Zhao, K. Lee, J. Li +6
We have employed high resolution angle resolved photoemission spectroscopy (ARPES) measurements to investigate many-body renormalizations of the single-particle excitations in …