H Werheit

Summary

Affiliation: University of Cologne
Country: Germany

Publications

  1. ncbi Isotopic phonon effects in β-rhombohedral boron--non-statistical isotope distribution
    H Werheit
    Institute of Physics, University Duisburg Essen, Campus Duisburg, 47048 Duisburg, Germany
    J Phys Condens Matter 24:175401. 2012
  2. ncbi Isotopic phonon effects in LaB6-LaB6 do not possess cubic symmetry and show a non-random isotope distribution
    H Werheit
    Institute of Physics, University Duisburg Essen, Duisburg, Germany
    J Phys Condens Matter 24:385405. 2012
  3. ncbi Raman scattering and isotopic phonon effects in dodecaborides
    H Werheit
    Institute of Physics, University Duisburg Essen, Campus Duisburg, D 47048 Duisburg, Germany
    J Phys Condens Matter 23:065403. 2011
  4. ncbi On surface Raman scattering and luminescence radiation in boron carbide
    H Werheit
    Institute of Physics, University Duisburg Essen, Duisburg, Germany
    J Phys Condens Matter 22:045401. 2010
  5. ncbi Isotopic effects on the phonon modes in boron carbide
    H Werheit
    Institute of Physics, University Duisburg Essen, Campus Duisburg, Duisburg D 47048, Germany
    J Phys Condens Matter 22:395401. 2010
  6. ncbi Superconductivity in boron carbide? Clarification by low-temperature MIR/FIR spectra
    H Werheit
    Institute of Physics, University Duisburg Essen, Duisburg, Germany
    J Phys Condens Matter 23:435501. 2011

Detail Information

Publications6

  1. ncbi Isotopic phonon effects in β-rhombohedral boron--non-statistical isotope distribution
    H Werheit
    Institute of Physics, University Duisburg Essen, Campus Duisburg, 47048 Duisburg, Germany
    J Phys Condens Matter 24:175401. 2012
    ..The isotopic phonon effects yield valuable specific information on the nature of the different phonon modes. The occupation of regular boron sites by isotopes deviates significantly from the random distribution...
  2. ncbi Isotopic phonon effects in LaB6-LaB6 do not possess cubic symmetry and show a non-random isotope distribution
    H Werheit
    Institute of Physics, University Duisburg Essen, Duisburg, Germany
    J Phys Condens Matter 24:385405. 2012
    ..There, the distribution of isotopes is not random as commonly assumed; the probability of associating equal isotopes increases with their mass decreasing...
  3. ncbi Raman scattering and isotopic phonon effects in dodecaborides
    H Werheit
    Institute of Physics, University Duisburg Essen, Campus Duisburg, D 47048 Duisburg, Germany
    J Phys Condens Matter 23:065403. 2011
    ..The different isotopic effects (virtual crystal approximation, the polarization effect and the effect of isotopic disorder) on the phonon frequencies are determined, separated and discussed...
  4. ncbi On surface Raman scattering and luminescence radiation in boron carbide
    H Werheit
    Institute of Physics, University Duisburg Essen, Duisburg, Germany
    J Phys Condens Matter 22:045401. 2010
    ..Raman excitations essentially restricted to the boron carbide surface region yield spectra which considerably differ from bulk phonon ones, thus indicating structural modifications...
  5. ncbi Isotopic effects on the phonon modes in boron carbide
    H Werheit
    Institute of Physics, University Duisburg Essen, Campus Duisburg, Duisburg D 47048, Germany
    J Phys Condens Matter 22:395401. 2010
    ..Some infrared-active phonons behave as expected for monatomic boron crystals...
  6. ncbi Superconductivity in boron carbide? Clarification by low-temperature MIR/FIR spectra
    H Werheit
    Institute of Physics, University Duisburg Essen, Duisburg, Germany
    J Phys Condens Matter 23:435501. 2011
    ..3)C and B(10.37)C, evidencing semiconducting behaviour at least down to 30 K. There is no indication of superconductivity. The spectra yield new information on numerous localized gap states close to the valence band edge...