Magnetic field effect on highly excited states near ionization potential of nitric oxide |
| |
| Authors: | Ken Takazawa |
| |
| Affiliation: | 1. Tsukuba Magnet Laboratory, National Institute for Materials Science, 3-13 Sakura, Tsukuba, 305-0003, Japantakazawa.ken@nims.go.jp |
| |
| Abstract: | Fluorescence excitation spectra due to the A 2∑–X 2Π transition of gaseous nitric oxide (NO) were measured in magnetic fields, H; ranging from 0 ≤ H ≤ 10 T. Lines in the observed spectra were assigned by using quantum mechanical calculations. Based on the assignment, two-color resonance-enhanced multiphoton ionization spectra via a single Zeeman sublevel in the A state were measured to observe the effect of magnetic fields on electronic states near the ionization potential (IP). Complicated structures due to strong n- and l-mixing in highly excited Rydberg states were observed below the IP. It was found that new resonance appears above the IP for H ≤ 4T. By using a semi-classical calculation, this resonance was assigned to the quasi-Landau resonance, which was observed for the first time in molecules.© 2003 Elsevier Ltd. All rights reserved. |
| |
| Keywords: | Magnetic field Zeeman effect Rydberg state Quasi-Landau resonance |
|
|
