Broadband Terahertz Time-domain Spectroscopy of Quantum Materials in a Dilution Refrigerator
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866908771099344896 |
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| author | Vukelich, Robert J. Norden, Tenzin Hastings, Tracy G. Giri, Mohan Caldwell, Michelle Forutan, Shabnam Reno, John L. Hilton, David J. |
| author_facet | Vukelich, Robert J. Norden, Tenzin Hastings, Tracy G. Giri, Mohan Caldwell, Michelle Forutan, Shabnam Reno, John L. Hilton, David J. |
| contents | We have constructed a terahertz time domain spectroscopy system using a Bluefors dilution refrigerator with a 7 T split-coil magnet. Using a gallium arsenide single quantum well sample, terahertz waveforms were measured at 145 mK in a magnetic field range from 0 to 6 Tesla to measure cyclotron resonance. Effective mass is found to be $0.073 m_{e}$, which is larger than the commonly accepted bulk value of $0.068 m_{e}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_11506 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Broadband Terahertz Time-domain Spectroscopy of Quantum Materials in a Dilution Refrigerator Vukelich, Robert J. Norden, Tenzin Hastings, Tracy G. Giri, Mohan Caldwell, Michelle Forutan, Shabnam Reno, John L. Hilton, David J. Other Condensed Matter We have constructed a terahertz time domain spectroscopy system using a Bluefors dilution refrigerator with a 7 T split-coil magnet. Using a gallium arsenide single quantum well sample, terahertz waveforms were measured at 145 mK in a magnetic field range from 0 to 6 Tesla to measure cyclotron resonance. Effective mass is found to be $0.073 m_{e}$, which is larger than the commonly accepted bulk value of $0.068 m_{e}$. |
| title | Broadband Terahertz Time-domain Spectroscopy of Quantum Materials in a Dilution Refrigerator |
| topic | Other Condensed Matter |
| url | https://arxiv.org/abs/2601.11506 |