Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
http://dx.doi.org/10.18419/opus-4903
Langanzeige der Metadaten
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Klar, Wolfgang | de |
dc.contributor.author | Lassmann, Kurt | de |
dc.date.accessioned | 2009-10-12 | de |
dc.date.accessioned | 2016-03-31T08:35:53Z | - |
dc.date.available | 2009-10-12 | de |
dc.date.available | 2016-03-31T08:35:53Z | - |
dc.date.issued | 1987 | de |
dc.identifier.other | 317995790 | de |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-47169 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/4920 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-4903 | - |
dc.description.abstract | The threshold at 85 GHz for anomalously large transmission of phonons into LHe has been investigated with Si-wafers for various surface treatments and coverages by phonon spectroscopy. With this multiple boundary scattering geometry we observe an increased sensitivity to spectral features. Connected with the threshold there is a phase shift of the signal compatible with a loss of the slower diffuse portion of the phonon signal to the covering liquid helium. This phase shift depends nonlinearly on modulation frequency between 5 kHz and 200 kHz (modulation of the generator to sort out the monochromatic phonons) and in a characteristic manner on the surface treatment. The finite phase shift at 5 kHz is indicative of very long lived 85 GHz phonons up into the 100 µs is range inspite of the multiple Si-LHe-interface scattering involved. Minor differences in polishing quality show up clearly in the phase shift at low modulation frequencies. | en |
dc.language.iso | en | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.subject.classification | Silicium , Phononentransport , Kapitza-Widerstand , Wafer | de |
dc.subject.ddc | 530 | de |
dc.title | Investigation of the Kapitza anomaly by frequency resolved phonon transport in silicon wafers | en |
dc.type | article | de |
dc.date.updated | 2014-10-16 | de |
ubs.fakultaet | Fakultät Mathematik und Physik | de |
ubs.institut | 1. Physikalisches Institut | de |
ubs.opusid | 4716 | de |
ubs.publikation.source | Japanese journal of applied physics 26 (1987), Suppl. 3, S. 369-370. URL http://dx.doi.org/10.7567/JJAPS.26S3.369 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 08 Fakultät Mathematik und Physik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
las35.pdf | 266,7 kB | Adobe PDF | Öffnen/Anzeigen |
Alle Ressourcen in diesem Repositorium sind urheberrechtlich geschützt.