000861217 001__ 861217
000861217 005__ 20250129094254.0
000861217 0247_ $$2doi$$a10.1103/PhysRevMaterials.3.025404
000861217 0247_ $$2Handle$$a2128/21771
000861217 0247_ $$2WOS$$aWOS:000459928900007
000861217 037__ $$aFZJ-2019-01738
000861217 082__ $$a530
000861217 1001_ $$0P:(DE-Juel1)144500$$aKlobes, Benedikt$$b0$$eCorresponding author
000861217 245__ $$aLattice dynamics and elasticity in thermoelectric Mg2 Si 1−x Snx
000861217 260__ $$aCollege Park, MD$$bAPS$$c2019
000861217 3367_ $$2DRIVER$$aarticle
000861217 3367_ $$2DataCite$$aOutput Types/Journal article
000861217 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1551874033_10751
000861217 3367_ $$2BibTeX$$aARTICLE
000861217 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000861217 3367_ $$00$$2EndNote$$aJournal Article
000861217 520__ $$aLattice dynamics and elastic constants in Mg2Si1−xSnx were investigated using resonant ultrasound spectroscopy, Mössbauer spectroscopy, nuclear inelastic scattering, and inelastic x-ray scattering. Increasing the Sn content x results in smaller elastic constants, lower Sn specific Debye temperature, lower speed of sound, and a softening of acoustic Sn specific phonons. However, close to band convergence at about x=0.6, the shear modulus is well below the expected value, which suggests a pronounced connection between band convergence and lattice dynamics in this system. Based on the determined speed of sound and average phonon group velocity, the importance of optical phonons for lattice thermal conductivity is discussed, as the significant reduction in both velocities would yield an implausibly low lattice thermal conductivity of only about 60% of the experimental value. Sn specific thermodynamic quantities calculated from the Sn specific density of phonon states substantiate the general softening of lattice vibrations upon substitution of Si by Sn. A major contribution to the vibrational entropy is thus due to Sn specific vibrational modes. The generalized density of phonon states in Mg2Si1−xSnx derived from inelastic x-ray scattering for one composition shows that vibrational modes related to lightweight Mg and Si set in above 12.5 meV, whereas Sn specific modes are concentrated around 11 meV.
000861217 536__ $$0G:(DE-HGF)POF3-144$$a144 - Controlling Collective States (POF3-144)$$cPOF3-144$$fPOF III$$x0
000861217 536__ $$0G:(DE-HGF)POF3-524$$a524 - Controlling Collective States (POF3-524)$$cPOF3-524$$fPOF III$$x1
000861217 536__ $$0G:(DE-HGF)POF3-6212$$a6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621)$$cPOF3-621$$fPOF III$$x2
000861217 536__ $$0G:(DE-HGF)POF3-6213$$a6213 - Materials and Processes for Energy and Transport Technologies (POF3-621)$$cPOF3-621$$fPOF III$$x3
000861217 536__ $$0G:(DE-HGF)POF3-6G4$$a6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)$$cPOF3-623$$fPOF III$$x4
000861217 588__ $$aDataset connected to CrossRef
000861217 7001_ $$0P:(DE-HGF)0$$ade Boor, Johannes$$b1
000861217 7001_ $$0P:(DE-HGF)0$$aAlatas, Ahmet$$b2
000861217 7001_ $$0P:(DE-HGF)0$$aHu, Michael Y.$$b3
000861217 7001_ $$0P:(DE-Juel1)145536$$aSimon, Ronnie$$b4
000861217 7001_ $$0P:(DE-Juel1)130706$$aHermann, Raphael$$b5
000861217 773__ $$0PERI:(DE-600)2898355-5$$a10.1103/PhysRevMaterials.3.025404$$gVol. 3, no. 2, p. 025404$$n2$$p025404$$tPhysical review materials$$v3$$x2475-9953$$y2019
000861217 8564_ $$uhttps://juser.fz-juelich.de/record/861217/files/PhysRevMaterials.3.025404.pdf$$yOpenAccess
000861217 8564_ $$uhttps://juser.fz-juelich.de/record/861217/files/PhysRevMaterials.3.025404.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000861217 909CO $$ooai:juser.fz-juelich.de:861217$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire
000861217 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)144500$$aForschungszentrum Jülich$$b0$$kFZJ
000861217 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)145536$$aForschungszentrum Jülich$$b4$$kFZJ
000861217 9131_ $$0G:(DE-HGF)POF3-144$$1G:(DE-HGF)POF3-140$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Collective States$$x0
000861217 9131_ $$0G:(DE-HGF)POF3-524$$1G:(DE-HGF)POF3-520$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Collective States$$x1
000861217 9131_ $$0G:(DE-HGF)POF3-621$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6212$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vIn-house research on the structure, dynamics and function of matter$$x2
000861217 9131_ $$0G:(DE-HGF)POF3-621$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6213$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vIn-house research on the structure, dynamics and function of matter$$x3
000861217 9131_ $$0G:(DE-HGF)POF3-623$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G4$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vFacility topic: Neutrons for Research on Condensed Matter$$x4
000861217 9141_ $$y2019
000861217 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000861217 915__ $$0LIC:(DE-HGF)APS-112012$$2HGFVOC$$aAmerican Physical Society Transfer of Copyright Agreement
000861217 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bPHYS REV MATER : 2017
000861217 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000861217 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000861217 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000861217 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000861217 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List
000861217 9201_ $$0I:(DE-Juel1)JCNS-2-20110106$$kJCNS-2$$lStreumethoden$$x0
000861217 9201_ $$0I:(DE-Juel1)PGI-4-20110106$$kPGI-4$$lStreumethoden$$x1
000861217 9201_ $$0I:(DE-82)080009_20140620$$kJARA-FIT$$lJARA-FIT$$x2
000861217 9801_ $$aFullTexts
000861217 980__ $$ajournal
000861217 980__ $$aVDB
000861217 980__ $$aUNRESTRICTED
000861217 980__ $$aI:(DE-Juel1)JCNS-2-20110106
000861217 980__ $$aI:(DE-Juel1)PGI-4-20110106
000861217 980__ $$aI:(DE-82)080009_20140620
000861217 981__ $$aI:(DE-Juel1)JCNS-2-20110106