نتایج جستجو برای: energy gap
تعداد نتایج: 791823 فیلتر نتایج به سال:
Energy-gap-dependent vibrational-energy transfers among the nitrile stretches of KSCN/KS(13)CN/KS(13)C(15)N in D2O, DMF, and formamide liquid solutions at room temperature were measured by the vibrational-energy-exchange method. The energy transfers are slower with a larger energy donor/acceptor gap, independent of the calculated instantaneous normal mode ("phonons" in liquids) densities or the...
An experimental investigation has been made of the total energy distribution of electrons emitted from the surfaces, purified by field evaporation, of YBqCu,O,,, single crystals oriented in the [loo] direction at temperatures above and below superconducting transition temperature. Field electron emission spectroscopic experiments carried out at 75 K visualized the superconducting energy gap at ...
The ground state energy and energy gap to the first excited state are calculated for the attractive Hubbard model in one dimension using both the Bethe Ansatz equations and the variational BCS wavefunction. Comparisons are provided as a function of coupling strength and electron density. While the ground state energies are always in very good agreement, the BCS energy gap is sometimes incorrect...
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