3.3k citations · 14.7k across the 124 of their papers we have counts for
12 papers · 1 filter
Low-Energy Surface States in the Normal State of -PdBi2 Superconductor
Hongchul Choi, Madhab Neupane, T. Sasagawa +2
Topological superconductors as characterized by Majorana surface states has been actively searched for their significance in fundamental science and technological implication. The…
Momentum space imaging of Cooper pairing in a half-Dirac-gas topological superconductor (a helical 2D topological superconductor)
Su-Yang Xu, Nasser Alidoust, Ilya Belopolski +14
Superconductivity in Dirac electrons has recently been proposed as a new platform between novel concepts in high-energy and condensed matter physics. It has been proposed that supe…
Chemically gated electronic structure of a superconducting doped topological insulator system
L. A. Wray, S. Xu, M. Neupane +4
Angle resolved photoemission spectroscopy is used to observe changes in the electronic structure of bulk-doped topological insulator CuBiSe as additional copper atoms a…
Fermi surface topology and low-lying electronic structure of a new iron-based superconductor Ca10(Pt3As8)(Fe2As2)5
M. Neupane, Chang Liu, S. -Y. Xu +9
We report a first study of low energy electronic structure and Fermi surface topology for the recently discovered iron-based superconductor Ca10(Pt3As8)(Fe2As2)5 (the 10-3-8 phase,…
Universality of superconducting gaps in overdoped Ba0.3K0.7Fe2As2 observed by angle-resolved photoemission spectroscopy
K. Nakayama, T. Sato, P. Richard +8
We have performed angle-resolved photoemission spectroscopy on the overdoped BaKFeAs superconductor ( = 22 K). We demonstrate that the superconducting…
Fermiology of Sr4V2O6Fe2As2: Quasi-Nested Fe vs Mott-Insulating V Orbitals
T. Qian, N. Xu, Y. -B. Shi +14
We have performed an angle-resolved photoemission spectroscopy study of a new iron-based superconductor Sr4V2O6Fe2As2. While V 3d orbitals are found to be in a Mott insulator state…
Electron-Hole Asymmetry in Superconductivity of Pnictides Originated from the Observed Rigid Chemical Potential Shift
M. Neupane, P. Richard, Y. -M. Xu +12
We have performed a systematic photoemission study of the chemical potential shift as a function of carrier doping in a pnictide system based on BaFeAs. The experimentally…
Observation of Dirac Cone Electronic Dispersion in BaFe2As2
P. Richard, K. Nakayama, T. Sato +8
We performed an angle-resolved photoemission spectroscopy study of BaFe2As2, which is the parent compound of the so-called 122 phase of the iron-pnictide high-temperature supercond…
Fermi surface dichotomy of the superconducting gap and pseudogap in underdoped pnictides
Y. -M. Xu, P. Richard, K. Nakayama +15
High-temperature superconductivity in iron-arsenic materials (pnictides) near an antiferromagnetic phase raises the possibility of spin-fluctuation-mediated pairing. However, the i…
Electronic structure of optimally doped pnictide BaKFeAs: a comprehensive ARPES investigation
H. Ding, K. Nakayama, P. Richard +13
We have conducted a comprehensive angle-resolved photoemission study on the normal state electronic structure of the Fe-based superconductor BaKFeAs. We hav…
Antiferromagnetism-superconductivity competition in electron-doped cuprates triggered by oxygen reduction
P. Richard, M. Neupane, Y. -M. Xu +5
We have performed a systematic angle-resolved photoemission study of as-grown and oxygen-reduced PrCeCuO and PrLaCeCuO electron-doped cuprates. In…
Unusual photoemission resonances of oxygen-dopant induced states in BiSrCaCuO
P. Richard, Z. -H. Pan, M. Neupane +7
We have performed an angular-resolved photoemission study of underdoped, optimally doped and overdoped BiSrCaCuO samples using a wide photon energy range (15…