Effect of Cu Substitution on Thermoelectric Properties of Ge Clathrates
نویسندگان
چکیده
منابع مشابه
effect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اولThermoelectric properties of nanoporous Ge
We computed thermoelectric properties of nanoporous Ge !np-Ge" with aligned pores along the #001$ direction through a combined classical molecular dynamics and first-principles electronic structure approach. A significant reduction in the lattice thermal conductivity of np-Ge leads to a 30-fold increase in the thermoelectric figure-of-merit !ZT" compared to that of bulk. Detailed comparisons wi...
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We report the effects of partial substitution of Ge onto the Ga sites of Fe2VGa by measuring electrical resistivity, Seebeck coefficient and thermal conductivity as a function of temperature. It is found that Ge substitution effectively dopes electrons to the system and thus causes a dramatic decrease in the electrical resistivity. The Seebeck coefficient changes sign from positive to negative ...
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چکیده ندارد.
15 صفحه اولSynthesis, transport and magnetic properties of Ba-Co-Ge clathrates
Ba-Co-Ge intermetallic clathrates were synthesized in both type-I and chiral-type crystal structures, to investigate thermoelectric and physical properties. Seebeck coe cients, thermal conductivities, electrical resistivities, and Hall coe cients were measured, as well as specific heat and magnetic susceptibility. TypeI Ba8CoxGe46 y was formed with a large number of spontaneous vacancies, simil...
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ژورنال
عنوان ژورنال: MATERIALS TRANSACTIONS
سال: 2005
ISSN: 1345-9678,1347-5320
DOI: 10.2320/matertrans.46.1485