Thermoelectric quantum oscillations in ZrSiS
| Autor: | J. R. Cooper, Marcin Matusiak, Dariusz Kaczorowski |
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| Přispěvatelé: | Cooper, John [0000-0003-4279-1667], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Science
General Physics and Astronomy FOS: Physical sciences 02 engineering and technology Electronic structure 01 natural sciences General Biochemistry Genetics and Molecular Biology Article Condensed Matter - Strongly Correlated Electrons Condensed Matter::Materials Science Seebeck coefficient 0103 physical sciences Thermoelectric effect 010306 general physics 0912 Materials Engineering Quantum Quantum computer Physics Multidisciplinary Spintronics Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Quantum oscillations General Chemistry 021001 nanoscience & nanotechnology Geometric phase Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Topological semimetals are systems in which conduction and valence bands cross each other and the crossings are protected by topological constraints. These materials provide intriguing tests for fundamental theories, while their unique physical properties promise a wide range of possible applications in low-power spintronics, optoelectronics, quantum computing and green energy harvesting. Here we report our study of the thermoelectric power of single-crystalline ZrSiS that is believed to be a topological nodal-line semimetal. We show that the thermoelectric power is an extremely sensitive probe of multiple quantum oscillations that are visible in ZrSiS at temperatures as high as 100 K. Two of these oscillations are shown to arise from three- and two-dimensional electronic bands, each with linear dispersion and the additional Berry phase predicted theoretically for materials with non-trivial topology. Our work not only provides further information on ZrSiS but also suggests a different route for studying other topological semimetals. Studies of quantum oscillations provide a valuable probe into the electronic structure of topological semimetals. Matusiak et al. demonstrate that quantum features in ZrSiS can be probed with greater sensitivity using diffusive thermopower than magnetization and electrical resistivity approaches. |
| Databáze: | OpenAIRE |
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