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Identification of a Critical Doping for Charge Order Phenomena in Bi-2212 Cuprates via RIXS
Haiyu Lu, Makoto Hashimoto, Su-Di Chen +16
Identifying quantum critical points (QCPs) and their associated fluctuations may hold the key to unraveling the unusual electronic phenomena observed in cuprate superconductors. Re…
A Broken Translational Symmetry State in an Infinite-Layer Nickelate
Matteo Rossi, Motoki Osada, Jaewon Choi +17
A defining signature of strongly correlated electronic systems is the existence of competing phases with similar ground state energies, resulting in a rich phase diagram. While in…
Electronic Structure Trends Across the Rare-Earth Series in Superconducting Infinite Layer Nickelates
Emily Been, Wei-Sheng Lee, Harold Y. Hwang +5
The recent discovery of superconductivity in oxygen-reduced monovalent nickelates has raised a new platform for the study of unconventional superconductivity, with similarities and…
Coincident onset of charge density wave order at a quantum critical point in underdoped YBCO
H. Jang, W. -S. Lee, S. Song +14
The recently demonstrated x-ray scattering approach using a free electron laser with a high field pulsed magnet has opened new opportunities to explore the charge density wave (CDW…
Ubiquitous antinodal quasiparticles and deviation from simple d-wave form in underdoped Bi-2212
I. M. Vishik, M. Hashimoto, W. -S. Lee +2
The momentum dependence of the superconducting gap in the cuprates has been debated, with most experiments reporting a deviation from a simple form in the underdoped…
Angle-resolved photoemission spectroscopy study of HgBaCuO
I. M. Vishik, N. Barišić, M. K. Chan +9
HgBaCuO (Hg1201) has been shown to be a model cuprate for scattering, optical, and transport experiments, but angle-resolved photoemission spectroscopy (ARPES) data a…
Asymmetry of collective excitations in electron and hole doped cuprate superconductors
W. S. Lee, J. J. Lee, E. A. Nowadnick +10
High-temperature superconductivity (HTSC) mysteriously emerges upon doping holes or electrons into insulating copper oxides with antiferromagnetic (AFM) order. It has been thought…
Phase competition in trisected superconducting dome
I. M. Vishik, M Hashimoto, R. -H. He +16
A detailed phenomenology of low energy excitations is a crucial starting point for microscopic understanding of complex materials such as the cuprate high temperature superconducto…
Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
M. Yi, D. H. Lu, J. -H. Chu +12
Nematicity, defined as broken rotational symmetry, has recently been observed in competing phases proximate to the superconducting phase in the cuprate high temperature superconduc…
Evolution of the electronic structure from the insulator to the superconductor in Bi2Sr2-xLax(Ca,Y)Cu2O8+d
K. Tanaka, T. Yoshida, K. M. Shen +8
La-doped and Y-doped Bi2Sr2CaCu2O8+d (Bi2212) compounds Bi2Sr2-xLax(Ca,Y)Cu2O8+d, which range from the insulator to the deeply underdoped superconductor, have been studied by angle…
Material and doping dependence of the nodal and anti-nodal dispersion renormalizations in single- and multi-layer cuprates
S. Johnston, W. S. Lee, Y. Chen +4
In this paper we present a review of bosonic renormalization effects on electronic carriers observed from angle-resolved photoemission spectra in the cuprates. We specifically disc…
A momentum-dependent perspective on quasiparticle interference in Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}
I. M. Vishik, B. Moritz, E. A. Nowadnick +6
Angle Resolved Photoemission Spectroscopy (ARPES) probes the momentum-space electronic structure of materials, and provides invaluable information about the high-temperature superc…
Dependence of Band Renormalization Effect on the Number of Copper-oxide Layers in Tl-based Copper-oxide Superconductor using Angle-resolved Photoemission Spectroscopy
W. S. Lee, K. Tanaka, I. M. Vishik +6
Here we report the first angle-resolved photoemission measurement on nearly optimally-doped multi-layer Tl-based superconducting cuprates (Tl-2212 and Tl-1223) and a comparison stu…
Evidence for weak electronic correlations in Fe-pnictides
W. L. Yang, P. O. Velasco, J. D. Denlinger +17
Using x-ray absorption and resonant inelastic x-ray scattering, charge dynamics at and near the Fe edges is investigated in Fe pnictide materials, and contrasted to that measur…
Bogoliubov Angle, Particle-Hole Mixture and Angular Resolved Photoemission Spectroscopy in Superconductors
Alexander V. Balatsky, W. S. Lee, Z. X. Shen
Superconducting excitations -- Bogoliubov quasiparticles -- are the quantum mechanical mixture of negatively charged electron (-e) and positively charged hole (+e). We propose a ne…
Abrupt Onset of Second Energy Gap at Superconducting Transition of Underdoped Bi2212
W. S. Lee, I. M. Vishik, K. Tanaka +6
The superconducting gap - an energy scale tied to the superconducting phenomena-opens on the Fermi surface at the superconducting transition temperature (TC) in conventional BCS su…
Aspects of Electron-Phonon Self-Energy Revealed from Angle-Resolved Photoemission Spectroscopy
W. S. Lee, S. Johnston, T. P. Devereaux +1
Lattice contribution to the electronic self-energy in complex correlated oxides is a fascinating subject that has lately stimulated lively discussions. Expectations of electron-pho…
Distinct Fermi-Momentum Dependent Energy Gaps in Deeply Underdoped Bi2212
Kiyohisa Tanaka, W. S. Lee, D. H. Lu +8
We use angle-resolved photoemission spectroscopy applied to deeply underdoped cuprate superconductors Bi2Sr2(Ca,Y)Cu2O8 (Bi2212) to reveal the presence of two distinct energy gaps…
Doping dependence of the coupling of electrons to bosonic modes in the single-layer high-temperature Bi2Sr2CuO6 superconductor
W. Meevasana, N. J. C. Ingle, D. H. Lu +10
A recent highlight in the study of high-Tc superconductors is the observation of band renormalization / self-energy effects on the quasiparticles. This is seen in the form of kinks…
Missing Quasiparticles and the Chemical Potential Puzzle in the Doping Evolution of the Cuprate Superconductors
K. M. Shen, F. Ronning, D. H. Lu +12
The evolution of CaNaCuOCl from Mott insulator to superconductor was studied using angle-resolved photoemission spectroscopy. By measuring both the excita…