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- Title
Long-Term Stability of the Colossal Seebeck Effect in Metallic Cu2Se.
- Authors
Byeon, Dogyun; Sobota, Robert; Singh, Saurabh; Ghodke, Swapnil; Choi, Seongho; Kubo, Naoto; Adachi, Masahiro; Yamamoto, Yoshiyuki; Matsunami, Masaharu; Takeuchi, Tsunehiro
- Abstract
Determination of thermoelectric properties is rather a challenging task, especially during a phase transition, where a drastic change in magnitude of thermoelectric properties is generally observed. In this study, we performed a precise measurement of the Seebeck coefficient on Cu2Se, which was recently reported to possess a colossal Seebeck coefficient with metallic electrical conductivity during a structural phase transition. We confirmed that the colossal Seebeck effect was stable over a long period of time, as high as −0.9 mV under an applied temperature gradient of 1 K. This fact clearly proved that the colossal Seebeck effect observable in metallic Cu2Se is potentially usable for a variety of thermoelectric applications.
- Subjects
SEEBECK effect; SEEBECK coefficient; ELECTRIC conductivity; PHASE transitions; TIME measurements
- Publication
Journal of Electronic Materials, 2020, Vol 49, Issue 5, p2855
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-019-07884-2