Probing the band structure of LaTe2 using angle resolved photoemission spectroscopy
نویسندگان
چکیده
D.R. Garcia, 2 S.Y. Zhou, 2 G.-H. Gweon∗,1 M.H. Jung, Y.S. Kwon, and A. Lanzara 2 Department of Physics, University of California, Berkeley, CA 94720, USA Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA National Research Laboratory for Material Science, KBSI, 52 Yeoeun-Dong Yusung-Gu, Daejeon 305-333, Korea Department of Physics, Sung Kyun Kwan University, Suwon 440-746, South Korea (Dated: October 10, 2006)
منابع مشابه
The Angle Resolved Photoemission Pseudogap and Anomalous Background of Underdoped Bi2Sr2CaCu2O8+δ as Evidence for a Fermi Level Band Crossing
We show that the unusual observations of a pseudogap in the normal state of underdoped Bi2Sr2CaCu2O8+δ (BiSCO) using angle resolved photoemission spectroscopy (ARPES) is consistent with a new band structure for the cuprate superconductors in which the x − y and z bands are seen to cross at the Fermi level. Limitations in the experimental method prevent the narrow 3D z band from being fully reso...
متن کاملPhotoemission studies in MgB2
Photoemission spectroscopy measurements of MgB2 are reviewed. From angle-resolved photoemission spectroscopy, band dispersion is observed as is theoretically predicted, suggesting that the electronic structure of MgB2 is well described within band theory. From angle-integrated photoemission spectroscopy, a clear peak ascribed to the superconducting coherent peak is observed. The shape of the sp...
متن کاملTime and angle resolved photoemission spectroscopy using femtosecond visible and high-harmonic light
The angle resolved photoelectron spectroscopy (ARPES) has emerged as a leading technique in identifying static key properties of complex systems such as the electronic band structure of adsorbed molecules, ultrathin quantum-well films or high temperature superconductors. We efficiently combined ARPES by using a two-dimensional analyzer for parallel energy (E) and momentum (k||) detection with f...
متن کاملQuasiparticle dynamics across the full Brillouin zone of Bi2Sr2CaCu2O8+δ traced with ultrafast time and angle-resolved photoemission spectroscopy
A hallmark in the cuprate family of high-temperature superconductors is the nodal-antinodal dichotomy. In this regard, angle-resolved photoemission spectroscopy (ARPES) has proven especially powerful, providing band structure information directly in energy-momentum space. Time-resolved ARPES (trARPES) holds great promise of adding ultrafast temporal information, in an attempt to identify differ...
متن کاملLayer dependent band dispersion and correlations using tunable Soft X-ray ARPES
– Soft X-ray Angle-Resolved Photoemission Spectroscopy is applied to study inplane band dispersions of Nickel as a function of probing depth. Photon energies between hν = 190 and 780 eV were used to effectively probe up to ∼3–7 layers (∼5–12 Å). The results show layer dependent band dispersion of the ∆2↓ minority-spin band which crosses the Fermi level in 3 or more layers, in contrast to known ...
متن کامل