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15 papers
Thickness-Dependent Coherent Phonon Frequency in Ultrathin FeSe/SrTiO Films
Shuolong Yang, Jonathan A. Sobota, Dominik Leuenberger +7
Ultrathin FeSe films grown on SrTiO substrates are a recent milestone in atomic material engineering due to their important role in understanding unconventional superconducti…
Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2
Yi Zhang, Tay-Rong Chang, Bo Zhou +13
Quantum systems in confined geometries are host to novel physical phenomena. Examples include quantum Hall systems in semiconductors and Dirac electrons in graphene. Interest in su…
Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3
J. J. Lee, F. T. Schmitt, R. G. Moore +11
Single unit cell films of iron selenide (1UC FeSe) grown on SrTiO3 (STO) substrates have recently shown superconducting energy gaps opening at temperatures close to the boiling poi…
Phase competition in trisected superconducting dome
I. M. Vishik, M Hashimoto, R. -H. He +16
A detailed phenomenology of low energy excitations is a crucial starting point for microscopic understanding of complex materials such as the cuprate high temperature superconducto…
Intrinsic Ultrathin Topological Insulators Grown via MBE Characterized by in-situ Angle Resolved Photoemission Spectroscopy
J. J. Lee, F. T. Schmitt, R. G. Moore +3
We demonstrate the capability of growing high quality ultrathin films of the topological insulators Bi2Se3 and Bi2Te3 using molecular beam epitaxy. Unlike previous growth technique…
Evidence for forward scattering and coupling to acoustic phonon modes in high-T cuprate superconductors
S. Johnston, I. M. Vishik, W. S. Lee +7
Recent laser angle-resolved photoemission spectroscopy studies have established the presence of a new kink in the low-energy nodal dispersion of BiSrCaCuO (Bi-2…