Level-crossing-Experiment am 6s6p 3 P 1-Term im Ba I-Spektrum

1968 ◽  
Vol 213 (3) ◽  
pp. 254-260 ◽  
Author(s):  
Gebhard von Oppen
Keyword(s):  
Level Crossing ◽  
Crossing Experiment

Double Resonance Detection Using Zero Field Level Crossing

1998 ◽  
Vol 53 (6-7) ◽  
pp. 301-304
Author(s):  
David Stephenson ◽  
John A. S. Smith
Keyword(s):  
High Frequency ◽  
Asymmetry Parameter ◽  
Double Resonance ◽  
Zero Field ◽  
Level Crossing ◽  
Small Magnetic Field ◽  
Crossing Experiment ◽  
Quadrupole Resonance ◽  
Simple Variation ◽  
Resonance Detection

Abstract Double resonance level crossing detection cannot normally be used to record transitions between the quadrupole Zeeman levels. Neither can it be used if the quadrupole resonance frequency is larger than the proton NMR frequency in high field. A simple variation of the level crossing experiment is demonstrated which allows energy to be efficiently transferred from quadrupole to proton system and hence lead to detection in these two cases. In the case of the quadrupole Zeeman levels it allows transitions between the ±½ levels to be detected in a small magnetic field, allowing measurement of the asymmetry parameter (ƞ) for spin 3/2 systems. This is demonstrated for the 11B nucleus in triethanolamine borate. Detection of high frequency quadrupole transitions is demonstrated from which relaxation information is obtained.

Ein Level-Crossing-Experiment im angeregten (5p1/2 5d5/2)J=2-Term des Sn I zur Untersuchung der Energieverschiebungen im elektrischen Feld / Level-Crossing Experiment in the Excited (5p1/25d5/2)J=2-State of the Sn I for the Investigation of the Energy Shifts in an Electric Field

1970 ◽  
Vol 25 (5) ◽  
pp. 608-611
Author(s):  
P. Zimmermann
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Stark Effect ◽  
Second Order ◽  
Wave Functions ◽  
Zero Field ◽  
Homogeneous Electric Field ◽  
Level Crossing ◽  
Crossing Experiment ◽  
The Magnetic Field

Observing the change of the Hanle effect under the influence of a homogeneous electric field E the Stark effect of the (5p1/25d5/2)j=2-state in Sn I was studied. Due to the tensorial part β Jz2E2 in the Hamiltonian of the second order Stark effect the signal of the zero field crossing (M ∓ 2, M′ = 0 β ≷ 0 ) is shifted to the magnetic field H with gJμBH=2 | β | E2. From these shifts for different electric field strengths the value of the Stark parameter|β| = 0.21(2) MHz/(kV/cm)2 · gJ/1.13was deduced. A theoretical value of ß using Coulomb wave functions is discussed.

Über ein level-crossing-Experiment im Cu-I Spektrum

1965 ◽  
Vol 471 (5-6) ◽  
pp. 302-304
Author(s):  
H. Bucka ◽  
G. Heppke ◽  
J. Ney
Keyword(s):  
Level Crossing ◽  
Crossing Experiment

Level crossing-Experiment im 62 P 3/2-Term des Rb I-Spektrums

1966 ◽  
Vol 194 (2) ◽  
pp. 193-200 ◽  
Author(s):  
H. Bucka ◽  
B. Grosswendt ◽  
H. A. Sch�ssler
Keyword(s):  
Level Crossing ◽  
Crossing Experiment
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