Zobrazeno 1 - 10
of 46
pro vyhledávání: '"H. F. Grünsteudel"'
Autor:
H. Grünsteudel, H. F. Grünsteudel, A. I. Chumakov, Heiner Winkler, Hauke Paulsen, Michael Gerdan, Alfred X. Trautwein, Wolfram Meyer-Klaucke, Hans Toftlund, Rudolf Rüffer
Publikováno v:
The European Physical Journal B. 23:463-472
The temperature-induced spin crossover of iron(II) in the [ Fe ( tpa )( NCS ) 2 ] complex has been investigated by nuclear forward scattering (NFS), nuclear inelastic scattering (NIS), extended X-ray absorption fine structure (EXAFS) spectroscopy, co
Publikováno v:
Science. 287:1250-1253
The lattice dynamics of the hexagonal close-packed (hcp) phase of iron was studied with nuclear inelastic absorption of synchrotron radiation at pressures from 20 to 42 gigapascals. A variety of thermodynamic parameters were derived from the measured
Autor:
Rainer Lübbers, M. Pleines, H. F. Grünsteudel, H.-J. Hesse, Olaf Leupold, J. Zukrowski, Gerhard Wortmann, Rudolf Rüffer
Publikováno v:
Hyperfine Interactions. :49-58
The nuclear forward scattering (NFS) of synchrotron radiation is especially suited for probing magnetism at very high pressure, here in the Mbar range, by the nuclear resonances of 57Fe and 151Eu. We report on high pressure (h.p.) NFS studies with th
Autor:
Rudolf Rüffer, A. I. Chumakov, Mohsen M. Abd-Elmeguid, H. Winkelmann, J. Plessel, H. F. Grünsteudel, Alessandro Barla, J. Metge
Publikováno v:
Physical Review B. 58:254-257
We have investigated inelastic scattering of synchrotron radiation by ${}^{119}\mathrm{Sn}$ nuclei using the radiative channel of nuclear deexcitation. The energy dependence of nuclear scattering of the 23.8795-keV x rays by a $\ensuremath{\beta}$-Sn
Autor:
H. Grünsteudel, A. I. Chumakov, Hans Toftlund, Wolfram Meyer-Klaucke, Heiner Winkler, H. F. Grünsteudel, Hauke Paulsen, Alfred Q. R. Baron, Alfred X. Trautwein, Rudolf Rüffer
Publikováno v:
Hyperfine Interactions. 113:311-317
Nuclear resonant scattering of synchrotron radiation was applied to investigate the spin‐crossover complex Fe(tpa)(NCS)2 (tpa=tris(2‐pyridylmethyl)amine). The nuclear forward scattering experiments are compared with conventional Mossbauer experim
Autor:
H. F. Grünsteudel, H. Grünsteudel, V. G. Kohn, Rudolf Rüffer, Alfred Q. R. Baron, A. I. Chumakov
Publikováno v:
Physical Review B. 56:10758-10761
The dynamics of iron atoms in the ${}^{57}{\mathrm{FeBO}}_{3}$ single crystal was studied using inelastic nuclear absorption. The energy spectra of nuclear recoil along several crystallographic directions were measured. The densities of phonon states
Autor:
Yu. V. Shvyd'ko, J. Metge, H. Grünsteudel, A. I. Chumakov, H. F. Grünsteudel, Alfred Q. R. Baron, Rudolf Rüffer
Publikováno v:
Physical Review B. 56:R8455-R8458
Publikováno v:
Physical Review B. 54:R9596-R9599
Energy spectra of nuclear inelastic absorption of synchrotron radiation in {alpha}-{sup 57}Fe were measured with 4.4-meV energy resolution in a temperature range 24{endash}400 K. The temperature dependence of the recoil fraction and of the multiphono
Autor:
Andreas Meyer, Alfred Q. R. Baron, H. F. Grünsteudel, Rudolf Rüffer, H. Grünsteudel, A. I. Chumakov
Publikováno v:
Scopus-Elsevier
Autor:
Rudolf Rüffer, Alfred Q. R. Baron, H. F. Grünsteudel, Aleksandr I. Chumakov, Olaf Leupold, H. Grünsteudel
Publikováno v:
Europhysics Letters (EPL). 34:331-336
We have observed single-nucleus quantum beats in the incoherent scattering of synchrotron radiation by the 14.4 keV transition of 57Fe. The 20 ns beat period characteristic of the nuclear excited-state splitting was clearly seen when enriched metalli