Abstract
Bulk extruded (including nanostructured) samples of Bi85Sb15 solid solutions consisting of particles with average sizes of 0.5 × 105, 380, 30, and 15 nm were obtained and their electrical conductivity (), thermo-e.m.f. (), Hall (R H), and thermal conductivity () coefficients in the temperature range ∼77–300 K and magnetic field strength (H) up to ∼74 × 104 A/m have been investigated. With decreasing powder sizes in the samples an increase in and a decrease in phonon thermal conductivity () and R H are observed; the dependences of these parameters of the samples on the size of the powders satisfactorily correlate in the studied temperature range. As the size of the crystals decreases, the concentration of the boundaries increases, this leads to increase of electron concentration in the samples. Effect of H on the electrical and thermal properties for annealed samples of Bi85Sb15 solid solutions was stronger than for the samples that have not undergone annealing.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
