Publications (12)
Unconventional Charge Density Wave Order in the Pnictide Superconductor Ba(NiCo)As
Sangjun Lee, Gilberto de la Pena, Stella X. -L. Sun +10
Ba(NiCo)As is a structural homologue of the pnictide high temperature superconductor, Ba(FeCo)As, in which the Fe atoms are replaced by Ni.…
Weyl Superconductivity in UTe2
Ian M. Hayes, Di S. Wei, Tristin Metz +9
The search for a material platform for topological quantum computation has recently focused on unconventional superconductors. Such material systems, where the superconducting orde…
Charge Order Evolution of Superconducting BaNi2As2 Under High Pressure
John Collini, Daniel J. Campbell, Daniel Sneed +5
BaNiAs, a non-magnetic superconductor counterpart to BaFeAs, has been shown to develop nematic order, multiple charge orders, and a dramatic six-fold enhancement of…
Sixfold enhancement of superconductivity in a tunable electronic nematic system
Chris Eckberg, Daniel J. Campbell, Tristin Metz +10
The electronic nematic phase, wherein electronic degrees of freedom lower the crystal rotational symmetry, is a common motif across a number of high-temperature superconductors. Ho…
Absence of precursor incommensurate charge order in electronic nematic Ba0.35Sr0.65Ni2As2
John Collini, Sangjun Lee, Stella X. -L. Sun +5
Recent discoveries of charge order and electronic nematic order in the iron-based superconductors and cuprates have pointed towards the possibility of nematic and charge fluctuatio…
Interaction of Molecular Oxygen with Hexagonally Reconstructed Au (001) Surface
Andrew Loheac, Andi Barbour, Vladimir Komanicky +6
Kinetics of molecular oxygen / Au (001) surface interaction has been studied at high temperature and near atmospheric pressures of O2 gas with in situ x-ray scattering measurements…
Enhancement of Superconductivity in WP via Oxide-Assisted Chemical Vapor Transport
Daniel J. Campbell, Wen-Chen Lin, John Collini +6
Tungsten monophosphide (WP) has been reported to superconduct below 0.8 K, and theoretical work has predicted an unconventional Cooper pairing mechanism. Here we present data for W…
Potential Lifshitz transition at optimal substitution in nematic pnictide BaSrNiAs
Dushyant M. Narayan, Peipei Hao, RafaÅ Kurleto +11
BaNiAs is a structural analog of the pnictide superconductor BaFeAs, which, like the iron-based superconductors, hosts a variety of ordered phases including charge…
Effect of chemical substitution on the skyrmion phase in CuOSeO
Paul M. Neves, Dustin A. Gilbert, Sheng Ran +7
Magnetic skyrmions have been the focus of intense research due to their unique qualities which result from their topological protections. Previous work on CuOSeO, the only…
Charge order-driven nematicity in the nickel-pnictide superconductor BaSrNiAs
Thomas Johnson, Camille Bernal-Choban, Sangjun Lee +8
Nematic order refers to the spontaneous breaking of rotational symmetry while preserving translational symmetry. First identified in classical liquid crystals, nematic order arises…
-axis transport in UTe: Evidence of Three Dimensional Conductivity Component
Yun Suk Eo, Shouzheng Liu, Shanta R. Saha +13
We study the temperature dependence of electrical resistivity for currents directed along all crystallographic axes of the spin-triplet superconductor UTe. We focus particula…
Multiple charge density waves and superconductivity nucleation at antiphase domain walls in the nematic pnictide BaSrNiAs
Sangjun Lee, John Collini, Stella X. -L. Sun +6
How superconductivity interacts with charge or nematic order is one of the great unresolved issues at the center of research in quantum materials. BaSrNiAs$_{2}…