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Single particle wavefunction localizations in bulged CdSenanowires (open access)

Single particle wavefunction localizations in bulged CdSenanowires

Using atomistic empirical pseudopotentials, we havecalculated the electronic structures of CdSe nanowires with a bulgedarea. The localized state wavefunctions and their binding energies arecalculated, and their dependences on the bulged area shape are analyzed.We find that both the binding energy and the wavefunction localizationstrongly depend on the bulged area shape, with the most compact shapeproduces the largest binding energy and strongest wavefunctionlocalization. We also find that the top of the valence band state has aweaker localization than the bottom of the conduction band state due toan effective mass anisotropy.
Date: July 2, 2006
Creator: Zhao, Zhengji; Wang, Lin-Wang & Wu, Fengmin
System: The UNT Digital Library
2006 Vibrational Spectroscopy Gordon Conference (open access)

2006 Vibrational Spectroscopy Gordon Conference

This Report is Description of Vibrational Spectroscopy at Gordon Conference
Date: July 2, 2006
Creator: Crim, Forrest Fleming
System: The UNT Digital Library
B(S) LIFETIME DIFFERENCE MEASUREMENTS FROM THE TEVATRON. (open access)

B(S) LIFETIME DIFFERENCE MEASUREMENTS FROM THE TEVATRON.

The two collider experiments at the Tevatron, CDF and D0, have made a lot of progress in B{sub s} lifetime difference measurements. Here, they have included 3 different channels of measurements, namely, B{sub s} {yields} J/{psi} + {phi}, B{sub s} {yields} K{sup +}K{sup -} and B{sub s} {yields} D{sub s}{sup (*)+}D{sub s}{sup (*)-}. Combining all the available measurements, they have obtained {Delta}{Lambda}{sub s} = 0.097{sub -0.042}{sup +0.041} ps{sup -1} and {bar {tau}} = 1/{Lambda}{sub s} = 1.461 {+-} 0.030 ps. {Delta}{Lambda}{sub s} is now 2.3 {sigma} away from zero.
Date: July 2, 2006
Creator: YIP, K.
System: The UNT Digital Library