Electron mobility of Sr1-xLaxTiO3 ceramics between 600°C and 1300°C

Title data

Moos, Ralf ; Schöllhammer, Sylvia ; Härdtl, Karl Heinz:
Electron mobility of Sr1-xLaxTiO3 ceramics between 600°C and 1300°C.
In: Applied Physics A. Vol. 65 (1997) Issue 3 . - pp. 291-294.
ISSN 1432-0630
DOI: https://doi.org/10.1007/s003390050581

Official URL:

Abstract in another language

The conductivities of differently reduced n-type conducting Sr1−xLaxTiO3 ceramics (0.003<x<0.40) were measured between 600°C and 1300°C. The density of electrons in the conduction band was determined from Hall and thermopower measurements. A chemical approach (Ti3+-titration) confirmed these results. The electron mobility was calculated by combining charge carrier density and conductivity data. The temperature dependence of the mobility obeys a power law. Its exponent varies from -1.5 for slightly doped samples (x=0.003) to -2.74 for lanthanum-rich samples (x=0.4) indicating a phonon scattering controlled transport behavior. The mobility data obtained from slightly doped ceramic samples agree very well with Hall mobilities found in undoped SrTiO3 single crystals.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos Faculties Faculties > Faculty of Engineering Science > Chair Functional Materials
Result of work at the UBT:	No
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	03 Feb 2015 09:22
Last Modified:	04 Apr 2016 07:37
URI:	https://eref.uni-bayreuth.de/id/eprint/6172