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  1. No Access

    Article

    Investigations of “soft-landed” Cd surface atoms via nuclear methods: hyperfine-field sign determination

    Using refined preparation techniques, cadmium guest atoms have been positioned at different sites on the surfaces of nickel crystals. The magnetic hyperfine fields and the electric field gradients at the Cd ...

    Y. Manzhur, W.-D. Zeitz, M. J. Prandolini, W. D. Brewer… in The European Physical Journal B (2007)

  2. No Access

    Chapter and Conference Paper

    Surface and Interface Magnetism Using Radioactive Probes

    Magnetic properties of impurities at ferromagnetic surfaces and interfaces have been investigated performing Perturbed Angular Correlation (PAC) measurements in the ultra-high vacuum chamber ASPIC (Apparatus f...

    Y. Manzhur, M. J. Prandolini, K. Potzger, A. Weber, W. -D. Zeitz… in IWNMS 2004 (2005)

  3. No Access

    Article

    Surface and Interface Magnetism Using Radioactive Probes

    Magnetic properties of impurities at ferromagnetic surfaces and interfaces have been investigated performing Perturbed Angular Correlation (PAC) measurements in the ultra-high vacuum chamber ASPIC (Apparatus f...

    Y. Manzhur, M. J. Prandolini, K. Potzger, A. Weber, W.-D. Zeitz… in Hyperfine Interactions (2005)

  4. No Access

    Chapter and Conference Paper

    The Magnetic Response of Europium Implanted in Cerium and in Platinum as Investigated by the PAC-Method

    The magnetic response of europium in g-cerium and in platinum was studied by applying the perturbed angular correlation spectroscopy. The probe nuclei were 147Eu(11/2−) and 149Eu(11/2−). The response in γ-Ce was ...

    W. -D. Zeitz, S. Unterricker, F. Schneider, V. Samokhvalov, K. Potzger… in HFI/NQI 2004 (2005)

  5. No Access

    Chapter and Conference Paper

    Investigations on the Diffusion of Boron in SiGe Mixed Crystals

    By studying the quadrupolar interaction of 12B in silicon-germanium mixed crystals with the β-NMR method, the boron-germanium pair was identified and the saturation amplitudes for boron in differently composed cr...

    W. -D. Zeitz, J. Hattendorf, W. Bohne, J. Röhrich, E. Strub… in HFI/NQI 2004 (2005)

  6. No Access

    Article

    Investigations on the Diffusion of Boron in SiGe Mixed Crystals

    By studying the quadrupolar interaction of 12B in silicon–germanium mixed crystals with the β-NMR method, the boron–germanium pair was identified and the saturation amplitudes for boron in differently composed cr...

    W.-D. Zeitz, J. Hattendorf, W. Bohne, J. Röhrich, E. Strub… in Hyperfine Interactions (2004)

  7. No Access

    Article

    The Magnetic Response of Europium Implanted in Cerium and in Platinum as Investigated by the PAC-Method

    The magnetic response of europium in γ-cerium and in platinum was studied by applying the perturbed angular correlation spectroscopy. The probe nuclei were 147Eu(11/2−) and 149Eu(11/2−). The response in γ-Ce was ...

    W.-D. Zeitz, S. Unterricker, F. Schneider, V. Samokhvalov… in Hyperfine Interactions (2004)

  8. No Access

    Article

    Radioactive ions for solid-state investigations at magnetic surfaces and interfaces

    Hyperfine interactions observed at isomeric states of radioactive probe nuclei are used as a tool for solid-state investigations. This method is sensitive to atomic-scale properties. In recent years surface an...

    H.H. Bertschat, K. Potzger, A. Weber… in The European Physical Journal A - Hadrons … (2002)

  9. No Access

    Article

    Surface and interface studies with ASPIC

    Magnetic properties at surfaces and interfaces have been investigated performing Perturbed Angular Correlation (PAC) measurements in the UHV chamber ASPIC (Apparatus for Surface Physics and Interfaces at CERN)...

    H.H. Bertschat, H. Granzer, K. Potzger, S. Seeger, A. Weber… in Hyperfine Interactions (2000)

  10. No Access

    Article

    Implanted light dopants in ZnSe

    Spin polarized radioactive 12B, 12N, and 8Li probe nuclei are implanted in nominally undoped ZnSe at stationary concentrations ≤ 1010 cm-3. These light dopants, one donor and two acceptors, are characterized by β...

    B. Ittermann, M. Füllgrabe, M. Heemeier, F. Kroll, F. Mai… in Hyperfine Interactions (1999)

  11. No Access

    Article

    PAC investigation of77Br→77Se on silicon surfaces

    The perturbedγγ-angular correlation (PAC) method has been applied to investigate the sites occupied by isolated77Br-atoms on silicon surfaces. The nuclear quadrupole interaction was used to determine the electric...

    J. Lohmüller, H. H. Bertschat, H. Granzer, H. Haas, G. Schatz… in Hyperfine Interactions (1996)

  12. No Access

    Article

    PAD investigation of19F in fullerites

    Perturbed angular distribution experiments on19F implanted into fullerites revealed a large fraction of fluorine atoms which are not subject to static quadrupole interactions in contrast to other allotropic forms...

    D. Schumann, H. -E. Mahnke, B. Spellmeyer, G. Sulzer, H. Waldmann… in Hyperfine Interactions (1993)

  13. No Access

    Article

    The Knight shift of francium in mercury

    For Fr in Hg an extremely small Knight shift has been found as compared to the shift known for an alkali metal host. It indicates an almost complete loss of the outer s-electron of the alkali atom Fr when embe...

    H. Haas, Ch. Stenzel, H. -E. Mahnke, B. Spellmeyer, W. -D. Zeitz in Hyperfine Interactions (1990)

  14. No Access

    Article

    Beta-delayed proton emission observed in new lanthanide isotopes

    The following new, beta-delayed proton emitters have been observed at the on-line isotope separator OASIS:120La (2.8±2s),122La (8.7±7s),123Ce (3.8±2s),141Dy (1.0±2s),141Gd, and143Dy (3.2±6s). Z-identification was...

    J. M. Nitschke, P. A. Wilmarth, P. K. Lemmertz… in Zeitschrift für Physik A Atoms and Nuclei (1984)

  15. No Access

    Article

    New beta-delayed proton emitters in the lanthanide region

    Several new beta-delayed proton emitters have been observed at the on-line mass separator OASIS. They were provisionally identified as:125Ce (8.9±0.7 s),126pr (3.2±0.6 s),127Nd (1.9±0.4 s),128Nd (4±2 s),137Gd (7±...

    J. M. Nitschke, M. D. Cable, W. -D. Zeitz in Zeitschrift für Physik A Atoms and Nuclei (1983)

  16. No Access

    Article

    The g-factor and the electric quadrupole moment of the 7/2+ isomer in125Xe

    The time differential perturbed angular distribution method (PAD) was used to measure theg-factor and the electric quadrupole interaction in a Cd single crystal for thet 1/2=140 ns,I π=7/2+ isomer in125Xe. Theg-f...

    D. Alber, H. H. Bertschat, H. Grawe, H. Haas… in Zeitschrift für Physik A Atoms and Nuclei (1983)

  17. No Access

    Article

    Electromagnetic transition strengths and nuclear moments in123Xe

    The level structure of123Xe has been studied with the114Cd (12C, 3n) and−Cd (13C, 4n) reactions using in-beamγ-ray spectroscopy. The yrast cascade on the low lying odd parity states originating from theh 11/2 neu...

    W. -D. Zeitz, D. Alber, H. Grawe, H. Haas… in Zeitschrift für Physik A Atoms and Nuclei (1982)

  18. No Access

    Article

    Strong probe atom dependence of the electric field gradient in Bismuth

    The nuclear quadrupole interaction of the 8+ isomers in206, 208Po was measured in the semimetallic host Bi. The comparison of the extracted electric field gradient eq for PoBi with the values for the neighboring ...

    H. -E. Mahnke, H. Haas, W. Semmler… in Zeitschrift für Physik B Condensed Matter (1982)

  19. No Access

    Article

    g-Factors of isomeric states in210,208,206Rn

    K. H. Maier, D. J. Decman, H. Grawe, H. Haas, W. -D. Zeitz in Hyperfine Interactions (1981)

  20. No Access

    Article

    The electric field gradient of Sb in Bi

    H. -E. Mahnke, H. Haas, W. Semmler, R. Sielemann, W. -D. Zeitz in Hyperfine Interactions (1981)

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