Nuclear Scattering of Synchrotron Radiation by<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>181</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>Ta</mml:mi></mml:math>

Chumakov, A. I.; Baron, Alfred Q. R.; Arthur, John R.; Ruby, S. L.; Brown, G. S.; Smirnov, G. V.; Bürck, U. van; Wortmann, G.

doi:10.1103/physrevlett.75.549

Cited by 28 publications

(6 citation statements)

References 23 publications

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“…The recoil-free fraction, known as the Lamb-Mössbauer factor, f LM , for Os at room temperature is 0.95 (1). Such a high f LM is comparable only with the f LM in Ta using the 181 Ta transition at 6.214(2) keV [35]. The Debye speed of sound, u D , can be extracted from lim [36] result in an average Debye speed of sound u D = 3.791 km/s, close to the speed of sound extracted herein.…”

Section: Resultssupporting

confidence: 75%

Nuclear resonant scattering of synchrotron radiation byOs187

et al. 2015

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We performed nuclear forward and inelastic scattering of synchrotron radiation by elemental Os utilizing the nuclear excited state of 187 Os which is otherwise inaccessible using any practical radioactive decay process. The lifetime of the excited state, 3.06(8) ns, and the energy of the transition, 9.778(3) keV, are refined. The nuclear quadrupole moment of the excited state, Q 3/2 = 1.46(10) b, is determined. The density of phonon states for elemental Os, which is herein experimentally determined, suggests that the Os lattice is a model for the lattice dynamics of hcp-Fe. The combination of the low energy of the nuclear transition and the large nuclear mass leads to a high recoil free fraction, f LM = 0.95(1), at room temperature, a large value that strongly supports the viability of nuclear resonance scattering as a reliable method to study electronic, magnetic, and elastic properties of Os compounds, including Os organometallics.

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Section: Resultssupporting

confidence: 75%

Nuclear resonant scattering of synchrotron radiation byOs187

et al. 2015

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“…Consequently, an effort to collect reliable data must combine the application of precise experimental methods with the detailed characterization of the excited nuclei and their surrounding. As an example of such approach, we mention the observation of 181 Ta excitation at the synchrotron radiation source (Chumakov et al, 1995); using 3.8 mm thick Ta foil, the absolute resonance energy 6214 + 2 eV and 0.53 ms decay time of the nuclear forward scattering were found. A motivation for the research under way at the PALS laser facility is to shed more light on the 181 Ta nuclear excitation and decay, to contribute to its univocal identification in the plasma environment, and to apply precise spectroscopic methods for plasma characterization and checking the location of the 181 Ta resonance.…”

Section: Experimental Approach To Investigation Of Low-energy Nuclearmentioning

confidence: 99%

Low-energy nuclear transitions in subrelativistic laser-generated plasmas

et al. 2008

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The aim of the reported research is to contribute to investigation of new processes and methods interlinking nuclear and laser-plasma physics. With respect to requirements of nuclear experiments at medium-size high-power lasers, the selection of proper candidates for studying the excitation and decay of low-lying nuclear states is reviewed. An experimental approach to the identification of low-energy nuclear transitions is discussed, simple estimates of the 181 Ta excitation yield in the laser-generated plasma provide a theoretical basis for planning future work. First tests and results of the experiments at the laser facility PALS are presented.

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“…On the other hand methodologies to analyze the time spectrum in so called forward scattering geometry are now been well developed [28]. In the subsequent works, Ruby played a central role to demonstrate the unique capabilities of this new tool [29,30].…”

Section: Unique Mossbauer Resonance Studiesmentioning

confidence: 99%