ar X iv : p hy si cs / 0 50 10 94 v 1 1 8 Ja n 20 05 Theoretical infra - red , Raman , and Optical spectra of the B 36 N 36 cage
نویسندگان
چکیده
Rajendra R. Zope, Tunna Baruah, Mark R. Pederson, and Brett I. Dunlap Department of Chemistry, George Washington University, Washington DC, 20052, USA Code 6392, Center for Computational Materials Science, US Naval Research Laboratory, Washington DC 20375, USA Department of Electrical Engineering and Materials Science Research Center, Howard University, Washington DC 200059, USA and Code 6189, Theoretical Chemistry Section, US Naval Research Laboratory, Washington, DC 20375 (Dated: January 19, 2005)
منابع مشابه
ar X iv : p hy si cs / 0 40 21 04 v 1 1 9 Fe b 20 04 Stability of As n [ n = 4 , 8 , 20
We present all-electron density functional study of the geometry, electronic structure, vibrational modes, polarizabilities as well as the infrared and Raman spectra of fullerene-like arsenic cages. The stability of Asn cages for sizes 4, 8, 20, 28, 32, 36, and 60 wherein each As atom is three-fold coordinated is examined. We find that all the cages studied are vibrationally stable and while al...
متن کاملar X iv : p hy si cs / 0 60 10 79 v 1 1 1 Ja n 20 06 Comparison of 87 Rb N - resonances for D 1 and D 2 transitions
We report an experimental comparison of three-photon-absorption resonances (known as “N resonances”) for the D1 and D2 optical transitions of thermal Rb vapor. We find that the D2 N -resonance has better contrast, a broader linewidth, and a more symmetric lineshape than the D1 N -resonance. Taken together, these factors imply superior performance for frequency standards operating on alkali D2 N...
متن کاملar X iv : p hy si cs / 0 50 20 90 v 1 1 6 Fe b 20 05 Lifetime Measurement of the 6 s Level of Rubidium
We present a lifetime measurements of the 6s level of rubidium. We use a time-correlated singlephoton counting technique on two different samples of rubidium atoms. A vapor cell with variable rubidium density and a sample of atoms confined and cooled in a magneto-optical trap. The 5P1/2 level serves as the resonant intermediate step for the two step excitation to the 6s level. We detect the dec...
متن کاملar X iv : a st ro - p h / 05 01 18 0 v 1 1 1 Ja n 20 05 The optical spectroscopy of extraterrestrial molecules
The ongoing quest to identify molecules in the interstellar medium by their electronic spectra in the visible region is reviewed. Identification of molecular absorption is described in the context of the elucidation of the carriers of the unidentified diffuse interstellar bands while molecular emission is discussed with reference to the unidentified Red Rectangle bands. The experimental techniq...
متن کاملar X iv : p hy si cs / 0 50 30 27 v 2 8 Fe b 20 07 Why does the Standard GARCH ( 1 , 1 ) model work well ?
G. R. Jafari,1, 2, ∗ A. Bahraminasab,3, 4, † and P. Norouzzadeh5, ‡ Department of Physics, Shahid Beheshti University, Evin, Tehran 19839, Iran Department of Nano-Science, IPM, P. O. Box 19395-5531, Tehran, Iran Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom The Abdus Salam International Center for Theoretical Physics (ICTP) Strada Costiera 11, I-34100 Trieste, I...
متن کامل