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  • 1
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Theg J-factors of Li6, Li7, Na23, Rb85, Rb87 and Cs133 in their2 S 1/2 ground states have been measured relative to theg J-factor of K39 with a precision of a few parts in 107 using the atomic beam magnetic resonance method.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method we observed Ramsey patterns of strongly field dependent transitions of Li, Na and Rb at high magnetic fields. The structures were of high symmetry, with half widths of the central minimums between 20 kHz and 6 kHz. In a first experiment we determined theg J -factor ratiog J (6Li)/g J (7Li)=1+3(70)·10−10.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 272 (1975), S. 143-145 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method the Zeeman interactions of12C in the3 P 1 and3 P 2 states at magnetic fields of about 3.4 kOe have been measured. The measured quantities areg J (3 P 1)−gJ(3 P 2)=15.4(1.0)·10−6 g J (3 P 2)=1.5010616 (50), from which the following value for gJ(3P1) can be calculated:g J (3 P 1)=1.5010770 (50). The experimental results are in moderate agreement with theoretical calculations.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 315 (1984), S. 1-11 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method, precision measurements of the hyperfine structure and Zeeman interactions have been performed in the ground state 4f 126s 2 3 H 6 of167Er. The experimental data were analyzed using an effective operator parametrized in the space of states of the ground state multiplet. It yielded eight effective hyperfine structure and Zeeman interaction constants which served to calculate the seven hyperfine separations of the ground state. The results are: $$\begin{gathered} 2F 2F' v_{FF'} (MHz) \hfill \\ 5 7 - 354.371 9409 (27) \hfill \\ 7 9 - 2{\text{78}}{\text{.231}} {\text{8263(14)}} \hfill \\ {\text{9}} 11 - 69.050 7785 (4) \hfill \\ 11 13 + 302.735 3731(12) \hfill \\ 13 15 + 866.691 3871(10) \hfill \\ 15 17 + 1,652.383 5154 (6) \hfill \\ 17 19 + 2,689.380 8050(10) \hfill \\ \end{gathered}$$ From the effective Zeeman interaction constants it was possible to determine an improvedg I -value, uncorrected for atomic diamagnetism: $$ g_I = + 0.086 775 (19) \cdot 10^{ - 3}$$ Furthermore a hexadecapole interaction corresponding to a diagonal hexadecapole interaction constant $$A_4 = - 16 (10) Hz$$ could be established which is of the order of magnitude expected from Coulomb excitation experiments as well as theoretical calculations.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 270 (1974), S. 187-194 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract On the basis of the non-relativistic time dependent Schrödinger theory shifts of the resonance frequency due to an arbitrary inhomogeneity of the rf-field with respect to amplitude, direction and phase, and shifts due to small inhomogeneities of the magnetic field are considered. A general relation is derived by which one can find the appropriate experimental methods to determine the shifts without a detailed knowledge of the actual line shapes. Usually small effects as shifts due to non-constant field direction or due to neighbouring states are included in the formalism. The results have been used successfully in precision experiments in which frequency shifts of about 10−2 of the resonance width were eliminated up to a few 10−5.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 274 (1975), S. 195-201 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method, the five hyperfine structure separations in the 4f 3 6s 2 4I9/2 ground state of 59 141 Pr have been measured. The results are:F F′ E FF′ * /h (MHz) 7 6 6477.913423(17) 6 5 5556.359848 (6) 5 4 4633.023306 (2) 4 3 3708.201146 (5) 3 2 2782.190601(15) From these quantities, the multipole interaction constantsA k,k=1, 2, 3, 4 between the nucleus and the electron shell have been calculated.A 4 especially then served to give the following limit for the intrinsic hexadecapole moment: ¦Q 40¦〈0.4eb 2. Furthermore, theg J -factors of the4 I multiplet have been measured at magnetic fields of 300 Oe. The results are:g J(4 I 9/2)=0.7310371(15)g J(4 I 11/2)=0.9651476(20)g J(4 I 13/2)=1.1063197(40)g J(4 I 15/2)=1.197963 (30) Small corrections due to perturbations by neighbouring fine structure levels are included.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 270 (1974), S. 173-186 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method and using the technique of separated oscillatory fields in combination with the triple resonance method the ratiosg I /g J of the stable alkali isotopes Li, Na and K in the2S1/2-ground state have been measured at magnetic fields of about 3 kOe. Frequency shifts analogous to the Bloch-Siegert-shift, expected from theory, were observed and eliminated by extrapolation to vanishing rf-field strength. The results, uncorrected for atomic diamagnetism, are:6Li:g I /g J =−0.22356978(10)·10−3 7Li:g I /g J =−0.59042719(10)·10−3 23Na:g I /g J =−0.40184406(40)·10−3 39K:g I /g J =−0.07088613 (6)·10−3 41K:g I /g J =−0.03890837 (4)·10−3 Furthermore, the hyperfine structure splitting constants in the2 S 1/2-ground states have been determined. Using the most precise absoluteg J -values available so far one can calculate absolute values for the uncorrectedg I - factors. The results are:Δν/MHz −g I·103 6Li: 228.2052590(30) 0.4476540 (3)7Li: 803.5040866(10) 1.1822130 (6)23Na: 1771.6261288(10) 0.8046108 (8)39K: 461.7197202(14) 0.14193489(12)41K: 254.0138720(20) 0.07790600 (8) By comparing the absoluteg I - factors with measurements received by the NMR-method, the chemical shifts of the NMR-frequencies caused by the hydrate surrounding of the alkali ions in the NMR-probe are determined.
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