Temperature dependent photoemission on 1T-TiSe2: Interpretation within the exciton condensate phase model
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We measured at high energy and angular resolution the spectral width of photoemission features near the Fermi energy for Ag(100) and for the nearly-two-dimensional metal 2H-NbSe2. The results do not agree with the quadratic width-energy relationship predic ...
We find that even very low Ni doping levels of high-quality Bi2Sr2Ca1Cu2O8 single crystals strongly affect the transition temperature T(c). We also observed that T(c) is not related to the total Ni concentration, but only to that of Ni engaged in NiO-type ...
Improved experimental conditions enabled us to increase the signal-to-noise ratio of the photoemission spectra for the superconducting state of Bi2Ca2SrCu2O8, taken with high angular and energy resolution. This also enabled us to reveal a pronounced minimu ...
Using high energy resolution angle-resolved photoemission, we have measured both the superconducting gap and the photoemission superconducting condensate spectral area of Bi2Sr2Ca1Cu1O8+x as a function of temperature in two different locations of the Brill ...
The authors studied the electric structure of two high-temperature superconductors, with particular emphasis on photoemission resonance effects and on collective excitation phenomena. The photoemission resonances simplified the identification of valence sp ...
A comparative study has been made of iodine-intercalated Bi2Sr2Ca1Cu2Ox single crystal and 1 atm O2 annealed Bi2Sr2Ca1Cu1Ox single crystal using an AC susceptibility measurement, X-ray photoemission (XPS) and angle-resolved ultraviolet photoemission spectr ...
Photoelectron spectroscopy with high-energy resolution has been utilized to investigate the charge-density wave (CDW) in 1T-TaS2 between 20 and 360 K. Constant binding-energy curves reveal discontinuities in the temperature dependence of the photoelectron ...
Using angle-resolved photoemission, we observed a nonzero superconducting gap and the presence of a superconducting condensate along all three major symmetry directions. We find that the gap is highly anisotropic, with a gap as small as 1-2 meV along GAMMA ...
We used photoemission spectroscopy with synchrotron radiation to investigate the electronic structure of eight different thallium cuprates: pure Tl2.2Ba2CuO(y), Ce-doped Tl2.2Ba(2-x)Ce(x)CuO(y) (x = 0.1, 0.15, 0.2) and Tl2Ba2CeCu3O(y), and Zr-doped Tl2Ba(2 ...
The authors have constructed two types of high-temperature superconducting (HTSC) bolometers, whose performance is essentially wavelength independent from λ~0.6 to 450 μm: The first is a microbridge, of dimensions 20×20 μm, and the second is a meander, cov ...