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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…