Spectroscopy of nonspherical atomic bubbles in solid Helium
- Lebedev, Victor Département de Physique, Université de Fribourg, Switzerland
- Moroshkin, Peter Département de Physique, Université de Fribourg, Switzerland
- Weis, Antoine Département de Physique, Université de Fribourg, Switzerland
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04.04.2011
Published in:
- The Journal of Physical Chemistry A. - 2011, vol. 115, no. 25, p. 7169–7179
English
We analyze the effect of the host crystal symmetry on the optical spectra of the 6P1/2−6S1/2 and 6P3/2−6S1/2 transitions of atomic Cs in solid ⁴He matrices. In particular, we address the deformation of the bubble structures formed by Cs in such quantum crystals. We show that the anisotropy of the stiffness tensor leads to static quadrupolar bubble shape deformations in hexagonally close-packed (hcp) crystals, while the corresponding deformations in the body-centered cubic (bcc) phase of the matrix have a hexadecupolar symmetry. A comparison of the measured excitation spectra with our model calculations allow us to infer quantitative values of the deformation parameters.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 27300
- DOI 10.1021/jp200159s
- Persistent URL
- https://folia.unifr.ch/unifr/documents/302166
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