Probing the phonon density of states in the superconducting Si clathrates from inelastic neutron scattering experiments

R. Viennois; P. Toulemonde; M. Koza; H. Mutka; A. San Miguel; R. Lortz

doi:10.1088/1742-6596/92/1/012121

Probing the phonon density of states in the superconducting Si clathrates from inelastic neutron scattering experiments

R. Viennois^*
, P. Toulemonde
, M. Koza
, H. Mutka
, A. San Miguel
, R. Lortz

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

5 Citations (Scopus)

Abstract

Information on the phonon density of states of the nanocage-based superconducting clathrates Ba₈Si₄₆ and Ba ₂₄Si₁₀₀ is reported from inelastic neutron scattering experiments. We have observed respectively two Einstein modes corresponding to the two kinds of cages in Ba₈Si₄₆ and at least four peaks presumably due to Einstein modes for Ba₂₄Si₁₀₀. The mode frequencies correspond with results from ab initio lattice dynamics calculations by Tse et al.

Original language	English
Article number	012121
Journal	Journal of Physics: Conference Series
Volume	92
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/92/1/012121
Publication status	Published - 1 Dec 2007
Externally published	Yes

Access to Document

10.1088/1742-6596/92/1/012121

Cite this

@article{2cf7028bf85f407e9b553dd9c960a108,

title = "Probing the phonon density of states in the superconducting Si clathrates from inelastic neutron scattering experiments",

abstract = "Information on the phonon density of states of the nanocage-based superconducting clathrates Ba8Si46 and Ba 24Si100 is reported from inelastic neutron scattering experiments. We have observed respectively two Einstein modes corresponding to the two kinds of cages in Ba8Si46 and at least four peaks presumably due to Einstein modes for Ba24Si100. The mode frequencies correspond with results from ab initio lattice dynamics calculations by Tse et al.",

author = "R. Viennois and P. Toulemonde and M. Koza and H. Mutka and \{San Miguel\}, A. and R. Lortz",

year = "2007",

month = dec,

day = "1",

doi = "10.1088/1742-6596/92/1/012121",

language = "English",

volume = "92",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

}

TY - JOUR

T1 - Probing the phonon density of states in the superconducting Si clathrates from inelastic neutron scattering experiments

AU - Viennois, R.

AU - Toulemonde, P.

AU - Koza, M.

AU - Mutka, H.

AU - San Miguel, A.

AU - Lortz, R.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Information on the phonon density of states of the nanocage-based superconducting clathrates Ba8Si46 and Ba 24Si100 is reported from inelastic neutron scattering experiments. We have observed respectively two Einstein modes corresponding to the two kinds of cages in Ba8Si46 and at least four peaks presumably due to Einstein modes for Ba24Si100. The mode frequencies correspond with results from ab initio lattice dynamics calculations by Tse et al.

AB - Information on the phonon density of states of the nanocage-based superconducting clathrates Ba8Si46 and Ba 24Si100 is reported from inelastic neutron scattering experiments. We have observed respectively two Einstein modes corresponding to the two kinds of cages in Ba8Si46 and at least four peaks presumably due to Einstein modes for Ba24Si100. The mode frequencies correspond with results from ab initio lattice dynamics calculations by Tse et al.

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000265677100121

UR - https://openalex.org/W1965167405

U2 - 10.1088/1742-6596/92/1/012121

DO - 10.1088/1742-6596/92/1/012121

M3 - Journal Article

SN - 1742-6588

VL - 92

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012121

ER -

Probing the phonon density of states in the superconducting Si clathrates from inelastic neutron scattering experiments

Abstract

Access to Document

Other files and links

Fingerprint

Cite this