{"title":"Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption","publication":"Hyperfine Interactions","abstract":[{"text":"We have applied nuclear inelastic absorption (NIA) to the molecular glass former dibutylphthalate/ferrocene, both in bulk and in nanoporous matrices having pore sizes of 50 and 25 A, respectively. The quantity g(E)/E2, where g(E) is the vibrational phonon density of states (VDOS) of the resonant nuclei, exhibits a pronounced maximum at low energies. Confinement in pores leads to a suppression of the VDOS below 1.5 meV, independent of the pore size. Also in the scaled heat capacity C(T)/T3, we observe a decrease of the peak maximum for low temperatures. Our observations are discussed in the light of experimental and theoretical results on nanocrystals and a recent theoretical model for the boson peak.","lang":"eng"}],"page":"77-83","intvolume":"        43","language":[{"iso":"eng"}],"issue":"12","date_updated":"2023-01-31T15:39:35Z","citation":{"apa":"Asthalter, T., Bauer, M., van Buerck, U., Sergueev, I., Franz, H., &#38; Chumakov, A. I. (2002). Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption. <i>Hyperfine Interactions</i>, <i>43</i>(12), 77–83. <a href=\"https://doi.org/10.1023/A:1025434512268\">https://doi.org/10.1023/A:1025434512268</a>","mla":"Asthalter, T., et al. “Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption.” <i>Hyperfine Interactions</i>, vol. 43, no. 12, 2002, pp. 77–83, doi:<a href=\"https://doi.org/10.1023/A:1025434512268\">10.1023/A:1025434512268</a>.","chicago":"Asthalter, T., Matthias Bauer, U. van Buerck, I. Sergueev, H. Franz, and A. I. Chumakov. “Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption.” <i>Hyperfine Interactions</i> 43, no. 12 (2002): 77–83. <a href=\"https://doi.org/10.1023/A:1025434512268\">https://doi.org/10.1023/A:1025434512268</a>.","bibtex":"@article{Asthalter_Bauer_van Buerck_Sergueev_Franz_Chumakov_2002, title={Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption}, volume={43}, DOI={<a href=\"https://doi.org/10.1023/A:1025434512268\">10.1023/A:1025434512268</a>}, number={12}, journal={Hyperfine Interactions}, author={Asthalter, T. and Bauer, Matthias and van Buerck, U. and Sergueev, I. and Franz, H. and Chumakov, A. I.}, year={2002}, pages={77–83} }","ieee":"T. Asthalter, M. Bauer, U. van Buerck, I. Sergueev, H. Franz, and A. I. Chumakov, “Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption,” <i>Hyperfine Interactions</i>, vol. 43, no. 12, pp. 77–83, 2002, doi: <a href=\"https://doi.org/10.1023/A:1025434512268\">10.1023/A:1025434512268</a>.","ama":"Asthalter T, Bauer M, van Buerck U, Sergueev I, Franz H, Chumakov AI. Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption. <i>Hyperfine Interactions</i>. 2002;43(12):77-83. doi:<a href=\"https://doi.org/10.1023/A:1025434512268\">10.1023/A:1025434512268</a>","short":"T. Asthalter, M. Bauer, U. van Buerck, I. Sergueev, H. Franz, A.I. Chumakov, Hyperfine Interactions 43 (2002) 77–83."},"volume":43,"type":"journal_article","department":[{"_id":"306"}],"_id":"41307","status":"public","doi":"10.1023/A:1025434512268","date_created":"2023-01-31T15:39:17Z","article_type":"original","publication_status":"published","author":[{"first_name":"T.","full_name":"Asthalter, T.","last_name":"Asthalter"},{"orcid":"0000-0002-9294-6076","first_name":"Matthias","id":"47241","last_name":"Bauer","full_name":"Bauer, Matthias"},{"full_name":"van Buerck, U.","last_name":"van Buerck","first_name":"U."},{"first_name":"I.","full_name":"Sergueev, I.","last_name":"Sergueev"},{"first_name":"H.","last_name":"Franz","full_name":"Franz, H."},{"first_name":"A. I.","full_name":"Chumakov, A. I.","last_name":"Chumakov"}],"year":"2002","user_id":"48467"}