961 citations · 3.6k across the 27 of their papers we have counts for
27 papers
Visualizing band selective enhancement of quasiparticle lifetime in a metallic ferromagnet
Na Hyun Jo, Yun Wu, Thaís V. Trevisan +8
Electrons navigate more easily in a background of ordered magnetic moments than around randomly oriented ones. This fundamental quantum mechanical principle is due to their Bloch w…
Evidence for large Rashba splitting in PtPb4 from Angle-Resolved Photoemission Spectroscopy
Kyungchan Lee, Daixiang Mou, Na Hyun Jo +11
We studied the electronic structure of PtPb using laser angle-resolved photoemission spectroscopy(ARPES) and density functional theory(DFT) calculations. This material is clo…
Manipulating of magnetism in the topological semimetal EuCd2As2
Na Hyun Jo, Brinda Kuthanazhi, Yun Wu +15
Magnetic Weyl semimetals are expected to have extraordinary physical properties such as a chiral anomaly and large anomalous Hall effects that may be useful for future, potential,…
Intrinsic axion insulating behavior in antiferromagnetic MnBiTe
Na Hyun Jo, Lin-Lin Wang, Robert-Jan Slager +6
A striking feature of time reversal symmetry (TRS) protected topological insulators (TIs) is that they are characterized by a half integer quantum Hall effect on the boundary when…
Gapless Dirac surface states in the antiferromagnetic topological insulator MnBi2Te4
Przemyslaw Swatek, Yun Wu, Lin-Lin Wang +4
We use high-resolution, tunable angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic properties of single crys…
Fragility of Fermi arcs in Dirac semimetals
Yun Wu, Na Hyun Jo, Lin-Lin Wang +8
We use tunable, vacuum ultraviolet laser-based angle-resolved photoemission spectroscopy and density functional theory calculations to study the electronic properties of Dirac semi…
A Single Pair of Weyl Fermions in Half-metallic EuCd2As2 Semimetal
Lin-Lin Wang, Na Hyun Jo, Brinda Kuthanazhi +4
An ideal Weyl semimetal with a single pair of Weyl points (WPs) may be generated by splitting a single Dirac point (DP) through the breaking of time-reversal symmetry by magnetic o…
Electronic structure of topological superconductor candidate AuPb
Yun Wu, Gil Drachuck, Lin-Lin Wang +8
We use magnetization measurements, high-resolution angle-resolved photoemission spectroscopy (ARPES), and density functional theory (DFT) calculations to study the electronic prope…
In-plane magnetic penetration depth of superconducting CaKFeAs
Rustem Khasanov, William R. Meier, Yun Wu +7
The temperature dependence of the in-plane magnetic penetration depth () in an extensively characterized sample of superconducting CaKFeAs ( K) w…
Extremely large magnetoresistance and Kohler's rule in PdSn4: a complete study of thermodynamic, transport and band structure properties
Na Hyun Jo, Yun Wu, Lin-Lin Wang +8
The recently discovered material PtSn is known to exhibit extremely large magnetoresistance (XMR) that also manifests Dirac arc nodes on the surface. PdSn is isostructure t…
The effects of Moire lattice on the electronic properties of graphene
Lunan Huang, Yun Wu, M. T. Hershberger +5
We study structural and electronic properties of graphene grown on SiC substrate using scanning tunneling microscope (STM), spot-profile-analysis low energy electron diffraction (S…
Electronic structure of RSb (R = Y, Ce, Gd, Dy, Ho, Tm, Lu) studied by angle-resolved photoemission spectroscopy
Yun Wu, Yongbin Lee, Tai Kong +6
We use high resolution angle-resolved photoemission spectroscopy (ARPES) and electronic structure calculations to study the electronic properties of rare-earth monoantimonides RSb…
Phonon-Induced Topological Transition to a Type-II Weyl Semimetal
Lin-Lin Wang, Na Hyun Jo, Yun Wu +4
Given the importance of crystal symmetry for the emergence of topological quantum states, we have studied, as exemplified in NbNiTe2, the interplay of crystal symmetry, atomic disp…
Three-dimensionality of the bulk electronic structure in WTe2
Yun Wu, Na Hyun Jo, Daixiang Mou +4
We use temperature- and field-dependent resistivity measurements [Shubnikov--de Haas (SdH) quantum oscillations] and ultrahigh resolution, tunable, vacuum ultraviolet (VUV) laser-b…
Anisotropic physical properties and pressure dependent magnetic ordering of CrAuTe
Na Hyun Jo, Udhara S. Kaluarachchi, Yun Wu +6
Systematic measurements of temperature dependent magnetization, resistivity and angle-resolved photoemission spectroscopy (ARPES) at ambient pressure as well as resistivity under p…
Enhancement of the superconducting gap by nesting in CaKFe4As4 - a new high temperature superconductor
Daixiang Mou, Tai Kong, William R. Meier +9
We use high resolution angle resolved photoemission spectroscopy and density functional theory with experimentally obtained crystal structure parameters to study the electronic pro…
Measuring Chern numbers above the Fermi level in the Type II Weyl semimetal MoWTe
Ilya Belopolski, Su-Yang Xu, Yukiaki Ishida +30
It has recently been proposed that electronic band structures in crystals give rise to a previously overlooked type of Weyl fermion, which violates Lorentz invariance and, conseque…
Observation of Fermi Arcs in Type-II Weyl Semimetal Candidate WTe2
Yun Wu, Na Hyun Jo, Daixiang Mou +4
We use ultrahigh resolution, tunable, vacuum ultraviolet laser angle-resolved photoemission spectroscopy (ARPES) to study the electronic properties of WTe, a material that was…
Asymmetric mass acquisition in LaBi - a new topological semimetal candidate
Yun Wu, Tai Kong, Lin-Lin Wang +7
We use our high resolution He-lamp based, tunable laser-based ARPES measurements and density functional theory calculations to study the electronic properties of LaBi, a binary sys…
Spectroscopic evidence for type II Weyl semimetal state in MoTe2
Lunan Huang, Timothy M. McCormick, Masayuki Ochi +9
In a type I Dirac or Weyl semimetal, the low energy states are squeezed to a single point in momentum space when the chemical potential Ef is tuned precisely to the Dirac/Weyl poin…
Discovery of Dirac Node Arcs in PtSn4
Yun Wu, Lin-Lin Wang, Eundeok Mun +7
In topological quantum materials the conduction and valence bands are connected at points (Dirac/Weyl semimetals) or along lines (Line Node semimetals) in the momentum space. Numbe…
Isotope Effect on Electron-Phonon Interaction in Multiband Superconductor MgB2
Daixiang Mou, Soham Manni, Valentin Taufour +5
We investigate the effect of isotope substitution on the electron-phonon interaction in the multi-band superconductor MgB2 using tunable laser based Angle Resolved Photoemission Sp…
Discovery of unconventional charge density wave at the surface of K0.9Mo6O17
Daixiang Mou, Aashish Sapkota, H. -H. Kung +8
We use Angle Resolved Photoemission Spectroscopy (ARPES), Raman spectroscopy, Low Energy Electron Diffraction (LEED) and x-ray scattering to reveal an unusual electronically mediat…
Unoccupied electronic structure and signatures of topological Fermi arcs in the Weyl semimetal candidate MoWTe
Ilya Belopolski, Su-Yang Xu, Yukiaki Ishida +30
Weyl semimetals have sparked intense research interest, but experimental work has been limited to the TaAs family of compounds. Recently, a number of theoretical works have predict…