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Title:Einsteinovi nihajni načini atomov v kletkah klatrata Cs8Na16Ge136
Authors:ID Sandrin, Vanja (Author)
ID Jagodič, Marko (Mentor) More about this mentor... New window
Files:.pdf UNI_Sandrin_Vanja_2013.pdf (653,82 KB)
MD5: ED627D268BB75B9694384F3DD74F3175
 
Language:Slovenian
Work type:Final seminar paper
Typology:2.11 - Undergraduate Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:V seminarju opišemo znane modele za specifično toploto trdnin. Izmerimo specifično toploto vzorca Cs8Na16Ge136 in te meritve prilagajamo s prilagoditvenimi funkcijami, v katere vključimo Debyejevo in Einsteinovo enačbo za specifično toploto. Iz prilagajanja dobimo Debyejevo in Einstenovi temperaturi ter njihove vrednosti pojasnimo s strukturo klatrata tipa II. Specifično toploto vzorca primerjamo s specifično toploto praznega klatrata Ge136 ter Na24Si136 in ugotovimo vpliv gostov znotraj kletk na specifično toploto klatrata.
Keywords:Specifična toplota trdnin, Einsteinov model, Debyejev model, nihanja kristalne mreže, klatrati
Place of publishing:Maribor
Publisher:[V. Sandrin]
Year of publishing:2013
PID:20.500.12556/DKUM-42053 New window
UDC:53(043.2)
COBISS.SI-ID:20283656 New window
NUK URN:URN:SI:UM:DK:NIZREZTF
Publication date in DKUM:04.02.2021
Views:1337
Downloads:50
Metadata:XML DC-XML DC-RDF
Categories:FNM
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Secondary language

Language:English
Title:Einstein's oscillation modes for atoms in the cages of the clathrate Cs8Na16Ge136
Abstract:In this seminar we describe the known models for specific heat of solids. Measurements of the specific heat capacity of clathrate Cs8Na16Ge136 are fitted with functions given by the Einstein and Debye equations for specific heat of solids. From fitting we obtain the Debye and Einstein temperatures and explain their values by the structure of the type II clathrate. We compare the specific heat of Cs8Na16Ge136 with specific heat of Na24Si136 and empty clathrate Ge136. From the comparison we deduce the effect of the guest, rattling inside cages of clathrate, on the specific heat capacity.
Keywords:Specific heat capacity of solids, Einstein model, Debye model, crystal lattice vibrations, clathrates


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