Scientific Research Division

Ping-Hui, Lin (林秉慧), Ph. D.

Assistant Research Scientist

Condense Matter Physics Group

Office: Room S209, R&D Building

E-Mail: lin.pinghui@nsrrc.org.tw 

Tel: +886-35780281-7217

 

Education               

2008－2011 Ph.D, Physics, Ecole Polytechnique Fédérale de Lausanne. Switzerland.

 

Employment

2011－2013  Postdoc, Laboratoire de Physique des Solides, Université Paris−Sud, France

2013－2014  Postdoc, Institute of Physics, Academia Sinica, Taiwan

 

Research Interest

   Angle-resolved photoemission spectroscopy (ARPES) is a powerful tool for investigating advanced materials, due to its unique capability to directly probe their electronic structures. It allows the researchers to map out the band dispersion and to understand comprehensively momentum/ energy dependent phenomena in advanced materials. One of the major issues in solid-state physics is the many-body effect, which deal with the interactions, correlations and excitations organize between countless particles. The electrons experience strong interactions or correlations causing dramatic effects revealed in the resistivity changes such as metal-insulator transition, volume changes across phase transitions, electron effective mass as in heavy fermion systems, superconductivity, etc. Our interest of research is to investigate the microscopic nature of the interactions and couplings in strongly correlated systems in thermal equilibrium using ARPES in NSRRC. Furthermore, a state-of-art laser based Time-resolved ARPES (Tr-ARPES) system will be built, which will provide us dynamic information of electronic structure in the transient state, and be complementary to the high-resolution ARPES.

 

 

(a) Dispersion of the electron pocket in FeTe for the indicated temperatures. (b) Thick lines: EDCs at kF for the electron pocket at different temperatures. Thin lines: Symmetrized EDCs. (c) Temperature dependence of the size of pseudogap. (Phys. Rev. Lett, 111, 217002 (2013)

 

 

 

Selected Publication

 

1. Direct evidence of broken translational symmetry in ARPES: the case of FeTexSe1−x. L. Moreschini∗ , P.-H. Lin∗ , Chia-Hui Lin, Wei Ku, D. Innocenti, Y. J. Chang, A. L. Walter, V. Brouet, E. Rotenberg, A. Bostwick, M. Grioni, Phys. Rev. Lett, 112, 087602 (2014) (*: equally contributed to this work)

 

2. Nature of the bad metallic behavior of Fe1.06Te inferred from its evolution in the magnetic state. P.-H. Lin† , Y. Texier, A. Taleb-Ibrahimi, P. Lefevre, F. Bertran and V. Brouet. Phys. Rev. Lett, 111, 217002 (2013) (†: corresponding author)

 

3. Doping and temperature dependence of the number of carriers in Co-doped BaFe2As2. V. Brouet, P.-H. Lin, E. Papalazarou, A. Taleb-Ibrahimi, P. Lefevre, F. Bertranand L. Perfetti, Phys. Rev. Lett, 110, 167002 (2013) 

 

4. Ultrafast lling of an electronic pseudogap in an incommensurate crystal. V. Brouet, J. Mauchain, E. Papalazarou, P.-H. Lin, A. Taleb-Ibrahimi, P. Lefevre, F. Bertran, L. Cario, E. Janod, B. Corraze and L. Perfetti, Phys. Rev. B, 87, 041106(R) (2013). 

 

5. Impact of the two Fe unit cell on the electronic structure measured by ARPES in iron pnictides. V. Brouet, M. Fuglsang Jensen, P.-H. Lin, A. Taleb-Ibrahimi, P. Lefevre, F. Bertran, C.-H. Lin, W. Ku, A. Forget, and D. Colson, Phys. Rev. B, 86, 075123 (2012) 

 

6. Measurement of Magnetic Excitations in the Two-Dimensional Antiferromagnetic Sr2CuO2Cl2 Insulator Using Resonant X-Ray Scattering: Evidence for Extended Interactions. M. Guarise, B. Dalla Piazza, M. Moretti Sala, G. Ghiringhelli, L. Braicovich, H. Berger, J. N. Hancock, D. van der Marel, T. Schmitt, V. N. Strocov, L. J. P. Ament, J. van den Brink, P.-H. Lin, P. Xu, H. M. Rønnow, and M. Grioni, Phys. Rev. Lett, 105, 157006 (2010) 

 

7. Evidence for corehole-mediated inelastic x-ray scattering from metallic Fe1.087Te. J. N. Hancock, R. Viennois, D. van der Marel, H. M. Rønnow, M. Guarise, P.-H. Lin, M. Grioni, M. Moretti Sala, G. Ghiringhelli, V. N. Strocov, J. Schlappa, and T. Schmitt, , Phys. Rev. B, 82, 020513 (2010) 

 

8. Superconducting phase in the layered dichalcogenide 1T-TaS2 upon inhibition of the metalinsulator transition. P. Xu, J. O. Piatek, P.-H. Lin, B. Sipos, H. Berger, L. Forró, H. M. Rønnow, and M. Grioni, Phys. Rev. B, 81, 172503 (2010) 

 

9. Fermi surface determination from wavevector quantization in LaSrCuO films. D. Ariosa, C. Cancellieri, P.-H. Lin and D. Pavuna, Appl. Phys. Lett., 92, 092506 (2008)