Skip to main content

21 Result(s)

within P. Schaaf Remove this filter Nuclear Physics, Heavy Ions, Hadrons Remove this filter

previous disabled Page of 2
and

  1. No Access

    Article

    Effect of annealing in an external magnetic field on the magnetic texture of Mo-containing nanocrystalline alloys

    The magnetic texture of (Fe1−x Cox)76Mo8Cu1B15 (x = 0, 0.5) nanocrystalline alloys is studied for different amounts of nanocrystalline grains. The originally amorphous alloys were annealed in exte...

    T. Kaňuch, M. Miglierini, J.-M. Grenèche, P. Schaaf in Czechoslovak Journal of Physics (2006)

  2. No Access

    Chapter and Conference Paper

    Xenon-ion Induced Magnetic and Structural Modifications of Ferromagnetic Alloys

    Thin polycrystalline films of permalloy (Ni79Fe21) and permendur (Co50Fe50) have been irradiated with Xe-ions to fluences of 1014−1016 ions/cm2. Ion-induced structural and magnetic modifications have been measure...

    Ratnesh Gupta, K. P. Lieb, G. A. Müller, P. Schaaf, K. Zhang in IWNMS 2004 (2005)

  3. No Access

    Article

    Xenon-ion Induced Magnetic and Structural Modifications of Ferromagnetic Alloys

    Thin polycrystalline films of permalloy (Ni79Fe21) and permendur (Co50Fe50) have been irradiated with Xe-ions to fluences of 1014–1016 ions/cm2. Ion-induced structural and magnetic modifications have been measure...

    Ratnesh Gupta, K. P. Lieb, G. A. Müller, P. Schaaf, K. Zhang in Hyperfine Interactions (2005)

  4. No Access

    Chapter and Conference Paper

    Magnetic Texturing of Xenon-Irradiated Iron Films Studied by Magnetic Orientation Mössbauer Spectroscopy

    Modifications of magnetic properties upon heavy-ion irradiation have been recently investigated for films of ferromagnetic 3d-elements (Fe, Ni, Co) and alloys (permendur, permalloy), in relation to changes of ...

    G. A. Müller, K. P. Lieb, E. Carpene, K. Zhang, P. Schaaf, J. Faupel… in HFI/NQI 2004 (2005)

  5. No Access

    Chapter and Conference Paper

    Heavy Ion Irradiated Ferromagnetic Films: The Cases of Cobalt and Iron

    Polycrystalline, e-gun deposited Co, Fe and Co/Fe films, tens of nanometers thick, have been irradiated with Ne, Kr, Xe and/or Fe ions to fluences of up to 5 × 1016 ions/cm2. Changes in the magnetic texture induc...

    K. P. Lieb, K. Zhang, G. A. Müller, R. Gupta, P. Schaaf in IWNMS 2004 (2005)

  6. No Access

    Article

    Heavy Ion Irradiated Ferromagnetic Films: The Cases of Cobalt and Iron

    Polycrystalline, e-gun deposited Co, Fe and Co/Fe films, tens of nanometers thick, have been irradiated with Ne, Kr, Xe and/or Fe ions to fluences of up to 5 × 1016 ions/cm2. Changes in the magnetic texture induc...

    K. P. Lieb, K. Zhang, G. A. MÜller, R. Gupta, P. Schaaf in Hyperfine Interactions (2005)

  7. No Access

    Article

    Magnetic Texturing of Xenon-Irradiated Iron Films Studied by Magnetic Orientation Mössbauer Spectroscopy

    Modifications of magnetic properties upon heavy-ion irradiation have been recently investigated for films of ferromagnetic 3d-elements (Fe, Ni, Co) and alloys (permendur, permalloy), in relation to changes of ...

    G. A. MÜller, K. P. Lieb, E. Carpene, K. Zhang, P. Schaaf… in Hyperfine Interactions (2004)

  8. No Access

    Article

    MOMS and PAC studies of ion-irradiated ferromagnetic films

    Thin polycrystalline films of Ni, Fe and Co, tens of nanometers thick, have been irradiated with Ar, Kr, Xe and/or Au ions to fluences of 1013 to 1016 ions/cm2. The magnetic texture induced or modified by the imp...

    G. A. Müller, A. Kulińska, Kun Zhang, R. Gupta, P. Schaaf… in Hyperfine Interactions (2003)

  9. No Access

    Article

    Mössbauer Optimization of the Direct Synthesis of β-FeSi2 by Ion Beam Mixing of Fe/Si Bilayers

    At present, there is an increasing interest in the iron di-silicide phase β-FeSi2, which is supposed to be a direct band gap semiconductor and one of the most promising materials for silicon-based optoelectronics...

    P. Schaaf, M. Milosavljevic, S. Dhar, N. Bibic, K.-P. Lieb… in Hyperfine Interactions (2002)

  10. No Access

    Article

    Laser-produced iron nitrides seen by Mössbauer spectroscopy

    Mössbauer spectroscopy is a very powerful tool to investigate technological processes performed mainly at the surface of materials. Nitriding of metals and steel is well established in surface engineering, and...

    P. Schaaf, K. -P. Lieb, E. Carpene, M. Han, F. Landry in Czechoslovak Journal of Physics (2001)

  11. No Access

    Article

    Decomposition and crystallization in a zirconium-based bulk amorphous alloy: effects on nuclear probes

    Using Mössbauer spectroscopy with 57Fe probes and perturbed angular correlations with ion implanted 111In–111Cd nuclear tracers, we have investigated decomposition and crystallization in the bulk amorphous alloys...

    H. Metzner, P. Schaaf, A. Rehmet, S. Schneider in Hyperfine Interactions (1999)

  12. No Access

    Article

    Ionic and electronic transport in In2S3 studied via perturbed angular correlation spectroscopy

    We report on Perturbed Angular Correlation measurements in polycrystalline In2S3 samples in the temperature range from 8 K to 1000 K where two different crystallographic phases β and α occur. As probes, implanted...

    M. Uhrmacher, L. Aldon, P. Schaaf, H. Metzner… in Hyperfine Interactions (1999)

  13. No Access

    Article

    Surface investigation of excimer laser irradiated phosphatized steel plates

    Steel plates (St 14-05) of 1.5 mm thickness and coated with 1.5 μm of ironzinc-phosphatehydrate (ASTM 29-1429) were irradiated with an XeCl-excimer laser (Siemens XP 2020) at energy densities of 20–80 mJ/mm2 and ...

    P. Schaaf, A. Emmel, E. Schubert, H. W. Bergmann, K. P. Lieb in Hyperfine Interactions (1994)

  14. No Access

    Article

    A simple six-input multichannel system for Mössbauer spectroscopy

    A multichannel system for Mössbauer spectroscopy was developed and is presented. The system, constructed as an NIM module, is connected to the DMA port of an ATARI ST computer and can be used for six detectors...

    P. Schaaf, T. Wenzel, K. Schemmerling, K. P. Lieb in Hyperfine Interactions (1994)

  15. No Access

    Article

    Study of nanocrystalline and amorphous powders prepared by mechanical alloying

    The process of mechanical alloying consists of intimate mixing and mechanical working of elemental powders in a high-energy ball mill. It has been well established that this process is able to produce nanocrys...

    P. Schaaf, G. Rixecker, E. Yang, C. N. J. Wagner, U. Gonser in Hyperfine Interactions (1994)

  16. No Access

    Article

    Simultaneous Triple Radiation Mössbauer Spectroscopy (STRMS)

    The setup for Simultaneous Triple Radiation Mössbauer Spectroscopy (STRMS) is described. The arrangement allows an independent and simultaneous recording of conversion electron Mössbauer spectra (CEMS) and of ...

    U. Gonser, P. Schaaf, F. Aubertin in Hyperfine Interactions (1991)

  17. No Access

    Article

    Experience with a toroidal proportional detector for backscattered Mössbauer ψ-rays and X-rays

    Because backscattering geometry in Mössbauer spectroscopy is particularly useful for non-destructive testing interesting technical applications arise. The reported toroidal proportional detector for backscatte...

    P. Schaaf, L. Blaes, J. Welsch, H. Jacoby, F. Aubertin, U. Gonser in Hyperfine Interactions (1990)

  18. No Access

    Article

    CXMS study of mild steel laser alloyed with CrB2

    Laser alloying of surfaces has attracted a great deal of attention for technical applications. By laser alloying of materials it is possible to improve hardness as well as wear and corrosion resistance of the ...

    P. Schaaf, V. Biehl, U. Gonser, M. Bamberger, M. Langohr… in Hyperfine Interactions (1990)

  19. No Access

    Article

    Application of Mössbauer spectroscopy to physical metallurgy: The role of light interstitial elements

    Light elements like hydrogen, nitrogen, and carbon, residing on interstitial sites of the host lattice, are capable of inducing noticeable changes in the physical properties of the material affected by their p...

    F. Aubertin, S. Abel, G. Wagner, P. Schaaf, U. Gonser in Hyperfine Interactions (1989)

  20. No Access

    Article

    Mössbauer measurements backscattering technique (CXMS) of laser irradiated cold forming tool steel (X210CR12)

    Conversion x-ray Mössbauer measurements (CXMS) in backscattering technique are performed on a commercial cold forming tool steel (X210Cr12), subjected to single-pass laser irradiation. The structure of the aff...

    P. Schaaf, Ph. Bauer, U. Gonser in Hyperfine Interactions (1989)

previous disabled Page of 2