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Optic phonons and anisotropic thermal conductivity in hexagonal Ge(2)Sb(2)Te(5)
The lattice thermal conductivity (κ) of hexagonal Ge(2)Sb(2)Te(5) (h-GST) is studied via direct first-principles calculations. We find significant intrinsic anisotropy (κ(a)/κ(c)~2) of κ in bulk h-GST, with the dominant contribution to κ from optic phonons, ~75%. This is extremely unusual as the aco...
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| Publicado en: | Sci Rep |
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| Main Authors: | , , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
Nature Publishing Group
2016
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| Assuntos: | |
| Acceso en liña: | https://ncbi.nlm.nih.gov/pmc/articles/PMC5111060/ https://ncbi.nlm.nih.gov/pubmed/27848985 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep37076 |
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