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TT: Fachverband Tiefe Temperaturen
TT 48: Focus Session: Unconventional Thermoelectric Phenomena and Materials (joint session MA/TT)
Wednesday, March 20, 2024, 15:00–17:45, H 1058
Thermoelectric effects have been discussed for several decades and have found widespread applications. This Focus Session, a joint venture of the divisions MA (Magnetism) and TT (Low Temperature), will thematise recent developments, namely “unconventional” thermoelectric phenomena and materials [see, e.g., K. Uchida and J. P. Heremans, Joule 6, 2240 (2022)]: these include transverse thermoelectric effects, such as the ordinary and anomalous Nernst effects, where the generated charge current is perpendicular to the temperature gradient. The latter – similar to the anomalous Hall effect – relies on the spin-orbit interaction or on canted spin textures, and ensuing topological electronic structures. Transverse thermoelectricity can be found even without a magnetic field, namely in goniopolar materials (e.g., NaSnAs2). Finally, nano-structured coherent quantum hybrid systems, containing dots as well as normal-conducting and superconducting elements, show remarkable – generally nonlocal – thermoelectric properties.
Coordinators: Ulrich Eckern (University of Augsburg, ulrich.eckern@uni-a.de) Max Hirschberger (The University of Tokyo, hirschberger@ap.t.u-tokyo.ac.jp)
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15:00 | TT 48.1 | Invited Talk: Enhanced Nernst effect in van der Waals tellurides — M. Behnami, M. Gillig, S. Aswartham, G. Shipunov, D. Efremov, B. R. Piening, I. V. Morozov, K. Ochkan, J. Dufouleur, V. Kocsis, C. Hess, M. Putti, F. Caglieris, B. Büchner, and •H. Reichlova |
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15:30 | TT 48.2 | Invited Talk: Hybrid transverse magneto-thermoelectric cooling in artificially tilted multilayers — •Ken-ichi Uchida |
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16:00 | TT 48.3 | Invited Talk: Nonlocal heat engines with hybrid quantum dot systems — •Rafael Sánchez, Mojtaba S. Tabatabaei, David Sánchez, and Alfredo Levy Yeyati |
| 16:30 | 15 min. break | ||
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16:45 | TT 48.4 | Invited Talk: Large anomalous Nernst thermoelectric performance in YbMnBi2 — •Yu Pan, Congcong Le, Bin He, Sarah Watzman, Mengyu Yao, Johannes Gooth, Joseph Heremans, Yan Sun, and Claudia Felser |
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17:15 | TT 48.5 | Invited Talk: A path to suistainable and scalable production of high-performance thermoelectric materials — •Maria Ibáñez |