Pierre Richard

activity

20132017

most citedExperimental discovery of Weyl semimetal TaAs

1.7k citations · 2.7k across the 18 of their papers we have counts for

collaborators

Showing cond-mat.supr-conShow all

9 papers · 1 filter

cond-mat.supr-con2017★ 3 cited

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(Fe $_{1 - x}$ Au $_{x}$ ) $_{2}$ As $_{2}$ superconductors above and across well separated tetragon…

cond-mat.supr-con2016

Collective excitations of dynamic Fermi surface deformations in BaFe $_{2}$ (As $_{0.5}$ P $_{0.5}$ ) $_{2}$

S. -F. Wu, W. -L. Zhang, D. Hu +7

We use electronic Raman scattering to study the low-energy excitations in BaFe $_{2}$ (As $_{0.5}$ P $_{0.5}$ ) $_{2}$ ( $T_{c} \approx 16$ K) samples. In addition to a superconducting pair brea…

cond-mat.supr-con2016★ 6 cited

Angle-resolved spectroscopy study of Ni-based superconductor SrNi $_{2}$ As $_{2}$

L. -K. Zeng, P. Richard, A. van Roekeghem +7

We performed an angle-resolved photoemission spectroscopy study of the Ni-based superconductor SrNi $_{2}$ As $_{2}$ . Electron and hole Fermi surface pockets are observed, but their diffe…

cond-mat.supr-con2016★ 9 cited

New phase transition in Na $_{2}$ Ti $_{2}$ As $_{2}$ O revealed by Raman scattering

D. Chen, T. T. Zhang, Z. -D. Song +8

We performed a Raman scattering study of Na $_{2}$ Ti $_{2}$ As $_{2}$ O. We identified a symmetry breaking structural transition at around $T_{s} = 150$ K, which matches a large bump in the ele…

cond-mat.supr-con2014★ 2 cited

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 $A$ Fe $_{2}$ As $_{2}$ ( $A$ ~=~Eu, Sr).…

cond-mat.supr-con2014★ 44 cited

Raman scattering investigation of the electron-phonon coupling in superconducting Nd(O,F)BiS $_{2}$

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 $_{2}$ ( $T_{c} = 4$ K). We observe 2 Raman active modes, with frequencies in…

cond-mat.supr-con2014★ 7 cited

Raman scattering investigation of superconducting Ba $_{2}$ Ti $_{2}$ Fe $_{2}$ As $_{4}$ O

S. -F. Wu, P. Richard, W. -L. Zhang +5

We have performed polarized Raman scattering measurements on the newly discovered superconductor Ba $_{2}$ Ti $_{2}$ Fe $_{2}$ As $_{4}$ O $_{2}$ ( $T_{c} = 21$ K). We observe seven out of eig…

cond-mat.supr-con2014★ 49 cited

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,…

cond-mat.supr-con2013★ 11 cited

Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFe $_{2}$ As $_{2 - x}$ P $_{x}$

P. Richard, C. Capan, J. Ma +8

We used angle-resolved photoemission spectroscopy to investigate the electronic structure of EuFe $_{2}$ As $_{2}$ , EuFe $_{2}$ As $_{1.4}$ P $_{0.6}$ and EuFe $_{2}$ P $_{2}$ . We observed doubled core…

On the origin of critical nematic fluctuations in pnictide superconductors

Collective excitations of dynamic Fermi surface deformations in BaFe2​(As0.5​P0.5​)2​

Angle-resolved spectroscopy study of Ni-based superconductor SrNi2​As2​

New phase transition in Na2​Ti2​As2​O revealed by Raman scattering