Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals
The emergent properties and low energy excitations of low dimensional condensed matter systems are profoundly affected by the interplay of strong magnetic field and the anisotropic ionic potential of the crystal lattice. Detailed information of the underlying physics of such systems can be probed by...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2023
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| Online Access: | https://hdl.handle.net/1721.1/152575 |
| _version_ | 1826209777636605952 |
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| author | Zhu, Junbo |
| author2 | Checkelsky, Joseph G. |
| author_facet | Checkelsky, Joseph G. Zhu, Junbo |
| author_sort | Zhu, Junbo |
| collection | MIT |
| description | The emergent properties and low energy excitations of low dimensional condensed matter systems are profoundly affected by the interplay of strong magnetic field and the anisotropic ionic potential of the crystal lattice. Detailed information of the underlying physics of such systems can be probed by the macroscopic responses observed in electric and thermoelectric transport experiments. In this thesis we present a com- prehensive study of the electronic bands and transport properties of the quasi-1D layered material ZrTe₅. For vacancy doped crystals, we report a transport, thermodynamic, and spectroscopic study with a focus on elucidating the connections between its band structure and unusual thermoelectric properties. For crystals in the stoichiometric limit, we report the discovery of a commensurate resonance effect in the angular magnetoresistance which can be understood as 1D to 2D crossovers of quasiparticle motion. |
| first_indexed | 2024-09-23T14:29:54Z |
| format | Thesis |
| id | mit-1721.1/152575 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:29:54Z |
| publishDate | 2023 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1525752023-11-01T03:22:38Z Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals Zhu, Junbo Checkelsky, Joseph G. Massachusetts Institute of Technology. Department of Physics The emergent properties and low energy excitations of low dimensional condensed matter systems are profoundly affected by the interplay of strong magnetic field and the anisotropic ionic potential of the crystal lattice. Detailed information of the underlying physics of such systems can be probed by the macroscopic responses observed in electric and thermoelectric transport experiments. In this thesis we present a com- prehensive study of the electronic bands and transport properties of the quasi-1D layered material ZrTe₅. For vacancy doped crystals, we report a transport, thermodynamic, and spectroscopic study with a focus on elucidating the connections between its band structure and unusual thermoelectric properties. For crystals in the stoichiometric limit, we report the discovery of a commensurate resonance effect in the angular magnetoresistance which can be understood as 1D to 2D crossovers of quasiparticle motion. Ph.D. 2023-10-30T20:04:06Z 2023-10-30T20:04:06Z 2023-06 2023-10-25T18:00:46.720Z Thesis https://hdl.handle.net/1721.1/152575 In Copyright - Educational Use Permitted Copyright retained by author(s) https://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Zhu, Junbo Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals |
| title | Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals |
| title_full | Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals |
| title_fullStr | Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals |
| title_full_unstemmed | Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals |
| title_short | Magnetoresistance and Thermoelectricity in Quasi-Low Dimensional Semimetals |
| title_sort | magnetoresistance and thermoelectricity in quasi low dimensional semimetals |
| url | https://hdl.handle.net/1721.1/152575 |
| work_keys_str_mv | AT zhujunbo magnetoresistanceandthermoelectricityinquasilowdimensionalsemimetals |