Measurement of the ground-state spectroscopic quadrupole moment of 192Ir

Hagn, E.; Leuthold, K.; Zech, E.; Ernst, H.

doi:10.1016/0370-2693(79)91262-0

Cited by 17 publications

(2 citation statements)

References 9 publications

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“…For the actual experiment the resonance line width F, which is caused entirely by inhomogeneous broadening, plays an essential role: For F/Avo~ 1 the subresonances can be resolved, for F/AvQ~ 1 an asymmetric structure is expected, from which A vQ can be deduced with less accuracy, while for F/Av e >> 1 all quadrupole effects are smeared out. Recently it has been demonstrated for 192IrNi that, with the use of highly pure Ni and very dilute alloys, F can be reduced so far that well-resolved quadrupole spectra are obtained [13].…”

Section: Principle Of Measurementmentioning

confidence: 99%

Magnetic moment and electric quadrupole moment of the anomalous186Ir ground state

Hagn

Zech

1980

Z Physik A

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The ground state nuclear moments of 186Ir (j~= 5 (+)) have been determined with NMR on oriented 186Ir in Ni as I/x1=3.80 +0"12 -0.02 #N and Q= -3.00 (15)b. The quadrupole moment is consistent with an anamolous j=K=5+0 or 5+1 ground state configuration. The explanation of the magnetic moment in terms of pure 5+0 or 5+1 configurations would require a high collective gR-factor of gR>0.76. On the other hand the magnetic moment can be explained with a "normal" gR and a mixed ground state configuration.

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Section: Principle Of Measurementmentioning

confidence: 99%

Magnetic moment and electric quadrupole moment of the anomalous186Ir ground state

Hagn

Zech

1980

Z Physik A

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“…This can be obtained if one of the corresponding quadrupole moments is measured with another technique. A short description of these experiments has been given elsewhere [15]. The magnetic interaction serves to get a high degree of polarization at the temperature of ~10mK while the quadrupole interaction splits the resonance into 2j subresonances.…”

Section: Introductionmentioning

confidence: 99%

Nuclear magnetic resonance on oriented192Ir in Fe and Ni

et al. 1980

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The hyperfine interaction of 192Ir nuclei as dilute impurities in Fe and Ni has been investigated with NMR on oriented nuclei. With the use of highly dilute and pure alloys the line widths could be reduced so far that the quadrupole splitting of 192IrF__ee and 192IrNi could be resolved. Taking hyperfine anomalies into account the ground state nuclear moments of 192Ir are deduced as 1#1=1.924(10) /~N and Q=2.36(11) b. The hyperfine field of IrNi was investigated as a function of the Ir concentration c between 0.01 at ~o and 5 at ~. The dependence of HHF on C was found to be significantly smaller than that reported from MiSssbauer effect measurements. For c=0.01at~ HHF= --454.7 (2.3)kG is deduced. The resonance shift with an external magnetic field has been studied precisely, yielding K = 0.012 (23) and K = 0.026 (12) for the Knight-shift of 192Ir in Fe and Ni, respectively. m -' 7-", Bolt zmGnn slow-r el0.xat ion f0.st -relaxation distribution limit limit t << T 1 t >>T 1 \ \ \., "d 2 \\

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Nuclear orientation and NMR of oriented nuclei

Wilson

Chaplin

1981

Hyperfine Interact

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Measurement of the ground-state spectroscopic quadrupole moment of 192Ir

Cited by 17 publications

References 9 publications

Magnetic moment and electric quadrupole moment of the anomalous186Ir ground state

Magnetic moment and electric quadrupole moment of the anomalous186Ir ground state

Nuclear magnetic resonance on oriented192Ir in Fe and Ni

Nuclear orientation and NMR of oriented nuclei

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