1.7k citations · 2.7k across the 18 of their papers we have counts for
18 papers
On the origin of critical nematic fluctuations in pnictide superconductors
S. -F. Wu, W. -L. Zhang, L. Li +6
We employ polarization-resolved Raman spectroscopy to study critical nematic fluctuations in Ba(FeAu)As superconductors above and across well separated tetragon…
Three-component fermions with surface Fermi arcs in topological semimetal tungsten carbide
J. -Z. Ma, J. -B. He, Y. -F. Xu +19
Topological Dirac and Weyl semimetals not only host quasiparticles analogous to the elementary fermionic particles in high-energy physics, but also have nontrivial band topology ma…
Robustness of topological states to lattice instability in non-symmorphic topological insulator KHgSb
D. Chen, T. T. Zhang, C. J. Yi +8
We report a polarized Raman scattering study of non-symmorphic topological insulator KHgSb with hourglass-like electronic dispersion. Supported by theoretical calculations, we show…
Experimental Observation of Three-Component 'New Fermions' in Topological Semimetal MoP
B. Q. Lv, Z. -L. Feng, Q. -N. Xu +10
Condensed matter systems can host quasiparticle excitations that are analogues to elementary particles such as Majorana, Weyl, and Dirac fermions. Recent advances in band theory ha…
Collective excitations of dynamic Fermi surface deformations in BaFe(AsP)
S. -F. Wu, W. -L. Zhang, D. Hu +7
We use electronic Raman scattering to study the low-energy excitations in BaFe(AsP) ( K) samples. In addition to a superconducting pair brea…
Compensated semimetal LaSb with unsaturated magnetoresistance
L. -K. Zeng, R. Lou, D. -S. Wu +23
By combining angle-resolved photoemission spectroscopy and quantum oscillation measurements, we performed a comprehensive investigation on the electronic structure of LaSb, which e…
Angle-resolved spectroscopy study of Ni-based superconductor SrNiAs
L. -K. Zeng, P. Richard, A. van Roekeghem +7
We performed an angle-resolved photoemission spectroscopy study of the Ni-based superconductor SrNiAs. Electron and hole Fermi surface pockets are observed, but their diffe…
Stress-induced nematicity in EuFe2As2 studied by phononic Raman spectroscopy
W. -L. Zhang, Athena S. Sefat, H. Ding +2
We use polarized Raman scattering to study the structural phase transition in EuFe2As2, the parent compound of the 122-ferropnictide superconductors. The in-plane lattice anisotrop…
New phase transition in NaTiAsO revealed by Raman scattering
D. Chen, T. T. Zhang, Z. -D. Song +8
We performed a Raman scattering study of NaTiAsO. We identified a symmetry breaking structural transition at around K, which matches a large bump in the ele…
Observation of Dirac-like band dispersion in LaAgSb
X. Shi, P. Richard, Kefeng Wang +10
We present a combined angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations study of the electronic structure of LaAgSb in the entire first Brillo…
Raman study of lattice dynamics in Weyl semimetal TaAs
H. W. Liu, P. Richard, Z. D. Song +4
We report a polarized Raman study of Weyl semimetal TaAs. We observe all the optical phonons, with energies and symmetries consistent with our first-principles calculations. We det…
Raman scattering investigation of large positive magnetoresistance material WTe
W. -D. Kong, S. -F. Wu, P. Richard +5
We have performed polarized Raman scattering measurements on WTe, for which an extremely large positive magnetoresistance has been reported recently. We observe 5 A phonon…
Experimental discovery of Weyl semimetal TaAs
B. Q. Lv, H. M. Weng, B. B. Fu +11
Weyl semimetals are a class of materials that can be regarded as three-dimensional analogs of graphene breaking time reversal or inversion symmetry. Electrons in a Weyl semimetal b…
On the origin of the electronic anisotropy in iron pnicitde superconductors
W. -L. Zhang, P. Richard, H. Ding +5
We use polarization-resolved Raman spectroscopy to study the anisotropy of the electronic characteristics of the iron-pnictide parent compounds FeAs (~=~Eu, Sr).…
Raman scattering investigation of the electron-phonon coupling in superconducting Nd(O,F)BiS
S. F. Wu, P. Richard, X. B. Wang +5
We have performed polarized Raman scattering measurements on the newly discovered superconductor Nd(O,F)BiS ( K). We observe 2 Raman active modes, with frequencies in…
Raman scattering investigation of superconducting BaTiFeAsO
S. -F. Wu, P. Richard, W. -L. Zhang +5
We have performed polarized Raman scattering measurements on the newly discovered superconductor BaTiFeAsO ( K). We observe seven out of eig…
Observation of anomalous temperature dependence of spectrum on small Fermi surfaces in a BiS2-based superconductor
L. K. Zeng, X. B. Wang, J. Ma +7
We performed an angle-resolved photoemission spectroscopy study of the BiS2-based superconductor Nd(O,F)BiS2. Two small electron-like Fermi surfaces around X (pi, 0) are observed,…
Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFeAsP
P. Richard, C. Capan, J. Ma +8
We used angle-resolved photoemission spectroscopy to investigate the electronic structure of EuFeAs, EuFeAsP and EuFeP. We observed doubled core…