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| Hauptseite > Publikationsdatenbank > Effect of nanocrystallinity on lattice dynamics in Bi $_{2}$ Te $_{3}$ based thermoelectrics > print |
| Hauptseite > Publikationsdatenbank > Effect of nanocrystallinity on lattice dynamics in Bi $_{2}$ Te $_{3}$ based thermoelectrics > print |
| 001 | 173154 | ||
| 005 | 20250129094200.0 | ||
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| 100 | 1 | _ | |a Klobes, B. |0 P:(DE-Juel1)144500 |b 0 |e Corresponding Author |u fzj |
| 245 | _ | _ | |a Effect of nanocrystallinity on lattice dynamics in Bi $_{2}$ Te $_{3}$ based thermoelectrics |
| 260 | _ | _ | |a Weinheim |c 2015 |b Wiley-VCH |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1422267353_24683 |2 PUB:(DE-HGF) |
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| 520 | _ | _ | |a The lattice dynamics in as-cast and nanocrystalline thermoelectric Bi2Te3 based p-type and n-type material were investigated using inelastic neutron scattering. Generalized densities of phonon states show substantial agreement between the lattice dynamics in as-cast samples and previous studies. The lattice dynamics in the nanocrystalline materials differ significantly from its as-cast counterparts in the acoustic phonon regime. In nanocrystalline p-type and n-type compounds, the average acoustic phonon group velocity was found to be reduced to 80(5)% and 95(2)% of the value in as-cast material. It is argued that point-defect and strain contrast scattering may play an important role for the understanding of lattice thermal conductivity in (nanocrystalline) Bi2Te3 based thermoelectrics beside the observed decrease of sound velocity |
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| 773 | _ | _ | |a 10.1002/pssr.201409479 |g Vol. 9999, no. 9999, p. n/a - n/a |0 PERI:(DE-600)2259465-6 |n 1 |p 57–61 |t Physica status solidi / Rapid research letters |v 9 |y 2015 |x 1862-6254 |
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