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  1. No Access

    Article

    Structural properties of the donor indium in nanocrystalline ZnO

    The structural properties of the nanocrystalline semiconductor ZnO (nano-ZnO) doped with the donor Indium were investigated by perturbed γγ angular correlation spectroscopy (PAC) and extended X-ray absorption ...

    T. Agne, M. Deicher, V. Koteski, H.-E. Mahnke, H. Wolf… in Hyperfine Interactions (2004)

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    Article

    Experimental Verification of Calculated Lattice Relaxations Around Impurities in CdTE

    We have measured the lattice distortion around As (acceptor) and Br (donor) in CdTe with fluorescence detected X-ray absorption spectroscopy. We could experimentally verify the lattice relaxation with a bond l...

    H.-E. Mahnke, H. Haas, V. Koteski, N. Novakovic, P. Fochuk… in Hyperfine Interactions (2004)

  3. No Access

    Article

    EXAFS Studies of the Local Structure Around Zn in Cd1−x Zn x Te

    X-ray absorption spectroscopy has been used to obtain information on the local structure around Zn atoms in CdTe. The Zn–Te distance is 5% smaller than the Cd–Te bond-length in the bulk, but slightly larger th...

    V. Koteski, B. Reinhold, H. Haas, E. Holub-Krappe, H.-E. Mahnke… in Hyperfine Interactions (2001)

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    Article

    Nuclear probes in the materials science of solar cells

    We present background material about solar cells and the copper-indium-sulphur system and then discuss three important processes for the production of CuInS2 solar-cell material. These include: sulphurization of ...

    H. Metzner, C. Dzionk, S. Hessler, H. -E. Mahnke, I. Luck… in Hyperfine Interactions (1996)

  5. 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)

  6. No Access

    Article

    Nuclear structure study of the neutron deficient cadmium isotopes100, 101, 102Cd

    The neutron-deficient nuclei100,101Cd were identified for the first time in — beam following the reactions58Ni +46,48Ti and58Ni +50Cr at 230 MeV and 245 MeV bombarding energy of the58Ni beams. Theγ-decay of the i...

    D. Alber, A. Berger, H. H. Bertschat… in Zeitschrift für Physik A Hadrons and Nuclei (1992)

  7. 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)

  8. No Access

    Article

    New developments in PAC and PAD

    Recent developments in both methods, Perturbed Angular Correlation (PAC) and Perturbed Angular Distribution (PAD) concern improvements in the instrumentation for various applications and sophistications in det...

    H. -E. Mahnke in Hyperfine Interactions (1990)

  9. No Access

    Article

    Introduction to PAC/PAD

    Both methods, Perturbed Angular Correlation (PAC) utilizing radioactive probes and Perturbed Angular Distribution (PAD) following nuclear reactions measure hyperfine interaction parameters and allow to study m...

    H. -E. Mahnke in Hyperfine Interactions (1989)

  10. No Access

    Article

    In-beam measurements of nuclear moments

    Nuclear moments contribute valuable information to nuclear structure studies of nuclei under extreme conditions, such as nuclei at high angular momentum or far from stability. While the magnetic moment is sens...

    H. -E. Mahnke in Hyperfine Interactions (1987)

  11. No Access

    Article

    The Knight shift of francium in cesium

    Using the PAD technique the Knight shift for Fr in Cs at 273 K has been measured with the 15− isomer in212Fr. The result 4.9(3)% may be well understood in terms of the conventional analysis. A dominant correction...

    H. Haas, H. -E. Mahnke, W. G. Shen, Ch. Stenzel in Hyperfine Interactions (1987)

  12. No Access

    Article

    Knight shift of sp-elements in bismuth

    A large negative term in the Knight shift has been found for a number of open p-shell elements of the 5th and 6th period in the host Bi which disappears at the p-shell closure.

    A. Berger, H. H. Bertschat, H. -E. Mahnke, B. Spellmeyer, W. Shen in Hyperfine Interactions (1987)

  13. No Access

    Article

    Temperature dependence of the electric field gradient of Hg in Bi

    The temperature dependence of the nuclear quadrupole interaction of the188Hg(12+) isomer in a Bi host has been measured by the TDPAD technique. Assuming that the T3/2 law is valid for this system a fit at the hig...

    E. Naim, C. Broude, E. Dafni, M. Hass, M. H. Rafailovich… in Hyperfine Interactions (1987)

  14. No Access

    Article

    Quadrupole moments of neutron isomers in Sm isotopes

    The quadrupole moments of the neutron isomers in140,142Sm were determined by measuring the quadrupole interaction of Sm in Gd using single crystals. The moment for the 10+ isomer in140Sm was determined to be ¦Q¦=...

    A. Berger, H. -E. Mahnke, H. Grawe, W. Semmler… in Zeitschrift für Physik A Atoms and Nuclei (1985)

  15. No Access

    Article

    E2 moments andg-factors in neutron deficient lead isotopes

    The half-lives of the (vi 13/2)2 I π=12+ isomers in190, 192pb were measured asT 1/2 =7.9(4) μs and 1.10(5) μs, respectively. The quadrupole moment and theg-factor of the corresponding state in194Pb were determine...

    C. Stenzel, H. Grawe, H. Haas, H. -E. Mahnke… in Zeitschrift für Physik A Atoms and Nuclei (1985)

  16. No Access

    Article

    Antimony in cadmium — An extreme case of probe atom dependent EFG

    The electric field gradient of Sb in Cd was determined by a PAD measurement on112Sb recoil-implanted into a Cd single crystal. We observe an extremely small value compared with known values on the probes Cd, In, ...

    W. Semmler, H. Haas, H. -E. Mahnke, R. Sielemann in Hyperfine Interactions (1983)

  17. No Access

    Article

    Quadrupole moment of the 19/2− isomer in115Sb

    The quadrupole moment of the 19/2− isomeric state in115Sb has been measured using the time differential perturbed angular distribution method. From the quadrupole coupling constante 2 Qq/h=66(3) MHz atT=370 K in ...

    W. Semmler, H. -E. Mahnke, H. Grawe… in Zeitschrift für Physik A Atoms and Nuclei (1983)

  18. No Access

    Article

    Magnetic moment of the 12+-isomer in192Pb

    The magnetic moment of the 12+-isomer in192Pb has been measured using the PAD technique. The isomer was populated by156Gd (40Ar,4n)-reaction with a pulsed40Ar-beam of 185 MeV. The result for the g-factor is g=−0....

    Ch. Stenzel, H. Grawe, H. Haas, H. -E. Mahnke, K. H. Maier in Hyperfine Interactions (1983)

  19. No Access

    Article

    Probe atom dependence of the electric field gradient in bismuth

    The electric field gradient of T1 in Bi has been determined with the PAD method. The observed value follows the general trend of sp-probe atoms in the group V semimetals in accordance with a covalent bond pict...

    H. -E. Mahnke, W. Semmler in Hyperfine Interactions (1983)

  20. 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)

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