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21 886 (0,088s)

Result

Crystal field-phonon coupling in the Kondo lattice CeCu2

Crystal field-phonon coupling in the Kondo lattice CeCu2...

BM - Fyzika pevných látek a magnetismus

  • 2002
  • Jx
Result

Dynamic stability of Ni fcc crystal under isotropic tension

Phonon spectra of Ni lattice are calculated for several crystal volumes. Phonon dispersions of unstressed crystal are in a very good agreement with experimental data. Under isotropic expansion, the lat...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2014
  • Jimp
  • Link
Result

Ab initio calculations of the crystal field and phonon dispersions in CePd2Al2 and LaPd2Al2

and lattice dynamics calculations of the phonon dispersions to compare are stable. The phonon dispersions and density of states are calculated for both crystalCePd2Al2 crystallizes in the CaBe2Ge2-type te...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2020
  • Jimp
  • Link
Result

Raman scattering.

This chapter reviews symmetry aspects of Raman scattering by lattice vibrational excitations (phonons) in crystals. Group-theoretical method based on transformation properties is outlined and the general form of Raman tenso...

BM - Fyzika pevných látek a magnetismus

  • 2003
  • C
Result

The origin of lattice instability in bcc tungsten under triaxial loading

tensile stress maxima was marginally reduced by occurrence of soft phonons in the crystal lattice. While, under purely hydrostatic tension, the crystal was predictedStability of ideal bcc tungsten crystal...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2017
  • Jimp
  • Link
Result

Spin-lattice relaxation processes of transition metal ions in a heavily cobalt doped ZnO: Phonon heating effect

+ spins into the lattice phonon modes. The measurements reveal the cross-relaxation the electron spin-lattice relaxation rates 1/T1 for transition metal impurities in heavily cobalt-doped hydrothermally grown ZnO single

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2019
  • Jimp
  • Link
Result

Lattice dynamics in PbMg1/2Nb2/3O3.

Lattice dynamics for five ordered PbMg1/2Nb2/3O3 supercells were calculated from first principles by the frozen phonon method. Results are compared with our experimental data for a chemically disordered PMN single crystal.....

BM - Fyzika pevných látek a magnetismus

  • 2004
  • Jx
Result

Dynamic stability of Ni fcc crystal under isotropic tension

Lattice dynamics and stability of fcc crystal of Ni under isotropic (hydrostatic) tensile loading are studied from first principles using supercell method and a harmonic approximation. According to the results, strength of the c...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2014
  • D
  • Link
Result

Lattice modes and the Jahn-Teller ferroelectric transition of GaV4S8

Crystal of GaV4S8, a multiferroic system hosting a Néel-type skyrmion lattice phase, has been investigated by polarized Raman and IR spectroscopy above and below. Phonon spectra are assigned and interpreted with the aid of ...

BM - Fyzika pevných látek a magnetismus

  • 2016
  • Jx
  • Link
Result

Directional dispersion of polar optical phonon frequencies in low-symmetry crystals: Raman studies in Sn 2 P 2 S 6 .

The phenomenon of directional dispersion of long-wavelength polar lattice modes is briefly reviewed and its principal features and consequences are discussed. They are illustrated on a example of monoclinic Sn 2 P 2 S 6 crystal....

BM - Fyzika pevných látek a magnetismus

  • 2002
  • Jx
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