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Large temperature hysteresis in transport properties of Cu2Se (CROSBI ID 678089)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Zorić, Marija ; P. Gille, P. ; Smontara, Ana ; Popčević, Petar Large temperature hysteresis in transport properties of Cu2Se // Solid-State Science & Research Meeting. Zagreb, 2019. str. 68-68

Podaci o odgovornosti

Zorić, Marija ; P. Gille, P. ; Smontara, Ana ; Popčević, Petar

engleski

Large temperature hysteresis in transport properties of Cu2Se

Cu2Se, as a competitive thermoelectric material, has attracted much attention in recent developments of thermoelectrics, due to the large figure of merit (ZT), which is among highest for single crystalline compounds (1.5 at 1000K). The excellent thermoelectric performance of Cu2Se is associated with its superionic behavior in the high-temperature β-phase. Although β-phase was extensively investigated, comprehensive insight of α phase (low temperature phase) is still lacking. Thus, we started more detailed investigation of transport properties of CuxSe at low temperatures. The properties of CuxSe α phase considerably depend on x and so does the transition temperature from low-temperature α phase to high-temperature β phase. Our results suggest presence of additional phase transition from α to α' phase at lower temperatures and show large temperature hysteresis. Furthermore, our results are consistent that composition of the samples investigated here are close to phase boundary and due to this show enhanced metallic behavior.

Cu2Se, thermoelectric material

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Podaci o prilogu

68-68.

2019.

objavljeno

Podaci o matičnoj publikaciji

Solid-State Science & Research Meeting

Zagreb:

Podaci o skupu

Solid State Science and Research Meeting

poster

27.06.2019-29.06.2019

Zagreb, Hrvatska

Povezanost rada

Fizika, Geodezija