English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Thermoelectric properties of single- and polycrystalline RuGa3

Wagner, M., Cardoso-Gil, R., Prots, Y., Schnelle, W., & Grin, Y. (2014). Thermoelectric properties of single- and polycrystalline RuGa3. Solid State Sciences, 32, 56-60. doi:10.1016/j.solidstatesciences.2014.03.016.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0019-D18C-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-F97A-F
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Wagner, M.1, Author              
Cardoso-Gil, R.2, Author              
Prots, Yu.3, Author              
Schnelle, W.4, Author              
Grin, Yu.5, Author              
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2Raul Cardoso, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863420              
3Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863424              
4Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
5Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

Content

show
hide
Free keywords: -
 Abstract: The thermoelectric properties of the intermetallic semiconductor RuGa3 are investigated. Large single crystals were grown to study intrinsic properties. To investigate the influence of grain boundaries in this system, the single crystals were ground to powder and densified using spark plasma sintering treatment. The initial chemical composition is maintained with the introduction of grain boundaries. Electrical resistivity data show semiconducting behavior for single- and polycrystalline samples. The high thermal conductivity (>500 W K-1 m(-1)) obtained for single crystals at low temperatures is reduced by a factor of 10 in the polycrystalline specimen. The thermopower shows a change between n-type and p-type behavior with a sharp minimum of about -700 mu V K-1 at 38 K for single crystals, which is completely suppressed by the introduction of grain boundaries. A comparison with RuIn3 shows the potential of RuGa3 as a thermoelectric material in its single- and polycrystalline form. (C) 2014 Elsevier Masson SAS. All rights reserved.

Details

show
hide
Language(s):
 Dates: 2014-06-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Solid State Sciences
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Paris : Elsevier Masson SAS
Pages: - Volume / Issue: 32 Sequence Number: - Start / End Page: 56 - 60 Identifier: ISSN: 1293-2558
CoNE: /journals/resource/954926245540