Drude-type conductivity of charged sphere colloidal crystals : density and temperature dependence
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- Martin Medebach
- Raquel Chuliá Jordán
- Holger Reiber
- Hans-Joachim Schöpe
- Ralf Biehl
- Martin Evers
- Dirk Hessinger
- Julianna Olah
- Thomas Palberg
- Ernest Schönberger
- Patrick Wette
- Sammlungen
- metadata
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 10
- Zeitschrift
- The journal of chemical physics
- Schlüsselwörter
- 530 Physik
- 530 Physics
- Sprache
- eng
- Paginierung
- Seiten: 104903 - 104912
- Datum der Veröffentlichung
- 2005
- Herausgeber
- AIP
- Herausgeber URL
- http://dx.doi.org/10.1063/1.1997134
- Datum der Datenerfassung
- 2020
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2020
- Zugang
- Public
- Titel
- Drude-type conductivity of charged sphere colloidal crystals : density and temperature dependence
- Ausgabe der Zeitschrift
- 123
Data source: METADATA.UB
- Other metadata sources:
-
- Abstract
- <jats:p>We report on extensive measurements in the low-frequency limit of the ac conductivity of colloidal fluids and crystals formed from charged colloidal spheres suspended in de-ionized water. Temperature was varied in a range of 5°C&lt;Θ&lt;35°C and the particle number density n between 0.2 and 25μm−3 for the larger, respectively, 2.75 and 210μm−3 for the smaller of two investigated species. At fixed Θ the conductivity increased linearly with increasing n without any significant change at the fluid-solid phase boundary. At fixed n it increased with increasing Θ and the increase was more pronounced for larger n. Lacking a rigorous electrohydrodynamic treatment for counterion-dominated systems we describe our data with a simple model relating to Drude’s theory of metal conductivity. The key parameter is an effectively transported particle charge or valence Z*. All temperature dependencies other than that of Z* were taken from literature. Within experimental resolution Z* was found to be independent of n irrespective of the suspension structure. Interestingly, Z* decreases with temperature in near quantitative agreement with numerical calculations.</jats:p>
- Autoren
- Martin Medebach
- Raquel Chuliá Jordán
- Holger Reiber
- Hans-Joachim Schöpe
- Ralf Biehl
- Martin Evers
- Dirk Hessinger
- Julianna Olah
- Thomas Palberg
- Ernest Schönberger
- Patrick Wette
- DOI
- 10.1063/1.1997134
- eISSN
- 1089-7690
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 10
- Zeitschrift
- The Journal of Chemical Physics
- Sprache
- en
- Online publication date
- 2005
- Datum der Veröffentlichung
- 2005
- Status
- Published
- Herausgeber
- AIP Publishing
- Herausgeber URL
- http://dx.doi.org/10.1063/1.1997134
- Datum der Datenerfassung
- 2023
- Titel
- Drude-type conductivity of charged sphere colloidal crystals: Density and temperature dependence
- Ausgabe der Zeitschrift
- 123
Data source: Crossref
- Abstract
- We report on extensive measurements in the low-frequency limit of the ac conductivity of colloidal fluids and crystals formed from charged colloidal spheres suspended in de-ionized water. Temperature was varied in a range of 5 degrees C < Theta < 35 degrees C and the particle number density n between 0.2 and 25 microm(-3) for the larger, respectively, 2.75 and 210 microm(-3) for the smaller of two investigated species. At fixed Theta the conductivity increased linearly with increasing n without any significant change at the fluid-solid phase boundary. At fixed n it increased with increasing Theta and the increase was more pronounced for larger n. Lacking a rigorous electrohydrodynamic treatment for counterion-dominated systems we describe our data with a simple model relating to Drude's theory of metal conductivity. The key parameter is an effectively transported particle charge or valence Z(*). All temperature dependencies other than that of Z(*) were taken from literature. Within experimental resolution Z(*) was found to be independent of n irrespective of the suspension structure. Interestingly, Z(*) decreases with temperature in near quantitative agreement with numerical calculations.
- Addresses
- Institut fur Physik, Johannes Gutenberg-Universität Mainz, Germany.
- Autoren
- Martin Medebach
- Raquel Chuliá Jordán
- Holger Reiber
- Hans-Joachim Schöpe
- Ralf Biehl
- Martin Evers
- Dirk Hessinger
- Julianna Olah
- Thomas Palberg
- Ernest Schönberger
- Patrick Wette
- DOI
- 10.1063/1.1997134
- eISSN
- 1089-7690
- Externe Identifier
- PubMed Identifier: 16178620
- Open access
- false
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 10
- Zeitschrift
- The Journal of chemical physics
- Sprache
- eng
- Medium
- Paginierung
- 104903
- Datum der Veröffentlichung
- 2005
- Status
- Published
- Datum der Datenerfassung
- 2005
- Titel
- Drude-type conductivity of charged sphere colloidal crystals: density and temperature dependence.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 123
Data source: Europe PubMed Central
- Abstract
- We report on extensive measurements in the low-frequency limit of the ac conductivity of colloidal fluids and crystals formed from charged colloidal spheres suspended in de-ionized water. Temperature was varied in a range of 5 degrees C < Theta < 35 degrees C and the particle number density n between 0.2 and 25 microm(-3) for the larger, respectively, 2.75 and 210 microm(-3) for the smaller of two investigated species. At fixed Theta the conductivity increased linearly with increasing n without any significant change at the fluid-solid phase boundary. At fixed n it increased with increasing Theta and the increase was more pronounced for larger n. Lacking a rigorous electrohydrodynamic treatment for counterion-dominated systems we describe our data with a simple model relating to Drude's theory of metal conductivity. The key parameter is an effectively transported particle charge or valence Z(*). All temperature dependencies other than that of Z(*) were taken from literature. Within experimental resolution Z(*) was found to be independent of n irrespective of the suspension structure. Interestingly, Z(*) decreases with temperature in near quantitative agreement with numerical calculations.
- Autoren
- Martin Medebach
- Raquel Chuliá Jordán
- Holger Reiber
- Hans-Joachim Schöpe
- Ralf Biehl
- Martin Evers
- Dirk Hessinger
- Julianna Olah
- Thomas Palberg
- Ernest Schönberger
- Patrick Wette
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/16178620
- DOI
- 10.1063/1.1997134
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 10
- Zeitschrift
- J Chem Phys
- Sprache
- eng
- Country
- United States
- Paginierung
- 104903
- Datum der Veröffentlichung
- 2005
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2007
- Titel
- Drude-type conductivity of charged sphere colloidal crystals: density and temperature dependence.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 123
Data source: PubMed
- Beziehungen:
- Property of