Naslov
Anisotropic transport properties of the Taylor-phase T‑Al72.5Mn21.5Fe6.0

Autori
Popčević, Petar ; Batistić, Ivo ; Smontara, Ana ; Heggen, M. ; Feuerbacher, M.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Izvornik
5th European School in Material Science "Properties of Complex Metallic Alloys : Modeling, Simulation and Experiment" (5 ; 2010 ; Ljubljana) / - , 2010

Skup
European School in Materials Science Complex Metallic Alloys, Properties of Complex Metallic Alloys : Modeling, Simulation and Experiment (5 ; 2010)

Mjesto i datum
Ljubljana, Slovenija, 23.05.2010. - 30.05.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
approximant to the decagonal phase; T‑Al72.5Mn21.5Fe6.0; transport properties; anisotropy

Sažetak
Taylor-phase (T‑Al72.5Mn21.5Fe6.0), an orthorhombic approximant to the decagonal quasicrystalline phase, unlike the other decagonal approximant phases exhibits unusual PTC behavior of the electrical conductivity, s, from 2 K up to room temperature. Transport properties (electrical resistivity r, thermopower S and thermal conductivity k) of the single crystalline T‑Al72.5Mn21.5Fe6.0 along three crystallographic directions reveal minor anisotropy. Thermopower is positive suggesting holes as majority charge carriers. Electrical conductivity and thermopower analyzed in the Kubo-Greenwood formalism provided electronic contribution to the thermal conductivity enabling us examination of the lattice thermal conductivity for the further analysis and checking the validity of the Wiedemann-Franz law.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
The poster was presented by Petar Popčević. This work was done within the activities of the European Integrated Center for the Development of New Metallic Alloys and Compounds - C-MAC.

POVEZANOST RADA