Phonon Density of States Measured by Inelastic Nuclear Resonant Scattering

Sturhahn, W.; Toellner, T. S.; E., E.; Zhang, X.; Ando, Masami; Yoda, Yoshitaka; Kikuta, Seishi; Seto, Makoto; Kimball, C. W.; Dąbrowski, B.

doi:10.1103/physrevlett.74.3832

Cited by 441 publications

(362 citation statements)

References 21 publications

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“…For an in-plane mode pair at frequency v̄α and an out-of-plane mode at frequency v̄β, Eq. 5 predicts that each of the two combination transitions will contribute an area (3/5)(ϕ α ϕ β ∕ 2 f ) resulting in a total area ϕ = 3 5 ( ϕ α ϕ β ∕ f ) (7) predicted for the two-quantum feature located at ν α + ν β . This is a factor 3 lower than the area predicted by Eq.…”

Section: Directional Effectsmentioning

confidence: 99%

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Vibrational dynamics of biological molecules: Multi-quantum contributions

Leu

Zgierski

Wyllie

et al. 2005

Journal of Physics and Chemistry of Solids

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High-resolution X-ray measurements near a nuclear resonance reveal the complete vibrational spectrum of the probe nucleus. Because of this, nuclear resonance vibrational spectroscopy (NRVS) is a uniquely quantitative probe of the vibrational dynamics of reactive iron sites in proteins and other complex molecules. Our measurements of vibrational fundamentals have revealed both frequencies and amplitudes of 57 Fe vibrations in proteins and model compounds. Information on the direction of Fe motion has also been obtained from measurements on oriented single crystals, and provides an essential test of normal mode predictions. Here, we report the observation of weaker two-quantum vibrational excitations (overtones and combinations) for compounds that mimic the active site of heme proteins. The predicted intensities depend strongly on the direction of Fe motion. We compare the observed features with predictions based on the observed fundamentals, using information on the direction of Fe motion obtained either from DFT predictions or from single crystal measurements. Two-quantum excitations may become a useful tool to identify the directions of the Fe oscillations when single crystals are not available.

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Section: Directional Effectsmentioning

confidence: 99%

“…These multiquantum contributions are often removed numerically to determine a vibrational density of states [7,17]. Chumakov and coworkers recently used multiquantum features to distinguish vibrational contributions from individual sites [30].…”

Section: Introductionmentioning

confidence: 99%

Vibrational dynamics of biological molecules: Multi-quantum contributions

Leu

Zgierski

Wyllie

et al. 2005

Journal of Physics and Chemistry of Solids

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“…IXS, being essentially a type of three-axis spectrometry, measures S q; v : Nuclear resonant techniques provide several alternative methods of investigating sample dynamics, the most robust of these being measurement of the phonon density of states [17,18]. The two fields complement each other, allowing slightly different information to be obtained about similar physical properties.…”

Section: Introductionmentioning

confidence: 99%

An X-ray scattering beamline for studying dynamics

Baron

Tanaka

Goto

et al. 2000

Journal of Physics and Chemistry of Solids

245

118

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“…The foil reduces the 6.4 keV radiation by a factor of ϳ3000, whereas the 14.4 keV resonant radiation is reduced only by a factor of ϳ2. In comparison to a similar experimental setup used for the nuclear inelastic scattering technique, [22][23][24] typical countrates in SRPAC are a factor of 50-100 lower due to angular collimation and exclusion of the dominant 6.4 keV radiation. The observed countrate was on average ϳ30 Hz.…”

Section: Methodsmentioning

confidence: 99%

“…Spatially incoherent nuclear scattering 21 became accessible for investigation of the solid state with the advent of the powerful third generation SR storage rings ESRF, APS, and SPring-8. Besides timeintegral applications, [22][23][24] first time-differential studies have been performed, where typical magnetic quantum beats have been demonstrated in single-nucleus scattering by pure iron. 25 Recently, spatially incoherent scattering was applied to study site-specific phonon densities of states.…”

Section: Introductionmentioning

confidence: 99%

Synchrotron-radiation-based perturbed angular correlations used in the investigation of rotational dynamics in soft matter

et al. 2006

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A new method, synchrotron-radiation-based perturbed angular correlations, was applied to study rotational dynamics of Mössbauer atoms in soft condensed matter, using incoherent nuclear resonant scattering of synchrotron radiation. A theory was developed that describes the correlations for the scattering by an ensemble of randomly oriented spins under the influence of rotational relaxation. In a feasibility study a molecular glass former doped by probe molecules was investigated above the glass transition up to the normal liquid state. A comparison of the obtained rotational relaxation rates with data from dielectric spectroscopy shows that the probe molecules reproduce the dynamics of the glass former.

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Phonon Density of States Measured by Inelastic Nuclear Resonant Scattering

Cited by 441 publications

References 21 publications

Vibrational dynamics of biological molecules: Multi-quantum contributions

Vibrational dynamics of biological molecules: Multi-quantum contributions

An X-ray scattering beamline for studying dynamics

Synchrotron-radiation-based perturbed angular correlations used in the investigation of rotational dynamics in soft matter

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