Authors: H.-H. Kung, S. Maiti, X. Wang, S.-W. Cheong, D.L. Maslov, G. Blumberg Abstract: Using polarization-resolved resonant Raman spectroscopy, we explore collective spin excitations of the chiral surface states in a three dimensional topological insulator, Bi2Se3. We observe a sharp peak at 150 meV in the pseudovector A2 symmetry channel of the Raman spectra. By …
Our manuscript ‘Surface vibrational modes of the topological insulator Bi2Se3 observed by Raman spectroscopy’ is published online in Phys. Rev. B 95, 245406 (2017) (link; PDF), see more details here.
Our manuscript ‘Superconductivity and electronic fluctuations in Ba1−xKxFe2As2 studied by Raman scattering’ is published online in Phys. Rev. B 95, 085125 (2017) (link; PDF), see more details here.