Scott T. Hannahs
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Scott Hannahs is a physicist at the National High Magnetic Field Laboratory in Tallahassee and Research Faculty at Florida State University.
He known as a leading expert on cryogenics, temperature measurement and general instrumentation in the presence of high magnetic fields. In addition he has developed and implemented several quench detection and protection systems for resistive, hybrid and HTS superconducting electromagnets.
Early Career[edit]
He attended The Thacher School and received dual B.S. Degrees in physics and mathematics from MIT. He received his Ph.D. in physics from UCLA in 1987 for research in quantum fluids.
He was a postdoctoral researcher at Boston University, and then staff member at the Francis Bitter National Magnet Laboratory. In 1993, he assumed a position at the National High Magnetic Field Laboratory in Tallahassee where he is now the Associate Lab Director for Scientific Instrumentation.
He is known for the first observation of the Quantum Hall Effect in a bulk material contravening conventional wisdom that such an effect can only be seen in thin films. Also for the first observation of magnetic field induced delocalization[2] of electric charge carriers. In addition he has detected and observed the formation and growth of magnetic field induced voids in liquid helium in accordance with theory[3].
Significantly he has recently observed clear evidence of the Fulde–Ferrell–Larkin–Ovchinnikov phase, first predicted in 1964, in unconventional organic superconductors.
He developed unique reliable protection systems for a class of hybrid magnets consisting of high energy superconducting surrounding an inner resistive electomagnet. As such he was a co-pi[4] for a novel extremely high field NMR quality magnet operating at the record field of 1.5 GHz[5]. Recently such system was applied to a unique 32 tesla all superconducting magnet combining both Low Temperature and High Temperature superconducting components. This project also receivied an R&D 100 Award[6] for new technologies and materials.
Publications[edit]
He has published over a hundred articles in peer reviewed scientific journals.[7][8]
Awards[edit]
- 2005 R&D 100 Award with Keithley Instruments[9]
- 2009 Fellow of the American Physical Society
- 2011 FSU Distinguished University Scholar
- 2022 R&D 100 Award for 32 tesla superconducting magnet[10]
References[edit]
- ↑ Hannahs, S. T.; Brooks, J. S.; Kang, W.; Chiang, L. Y.; Chaikin, P. M. (1989-10-30). "Quantum Hall effect in a bulk crystal". Physical Review Letters; (USA). 63:18. doi:10.1103/PhysRevLett.63.1988. ISSN 0031-9007.
- ↑ Jiang, H. W.; Johnson, C. E.; Wang, K. L.; Hannahs, S. T. (1993-08-30). "Observation of magnetic-field-induced delocalization: Transition from Anderson insulator to quantum Hall conductor". Physical Review Letters. 71 (9): 1439–1442. doi:10.1103/PhysRevLett.71.1439.
- ↑ Hannahs, Scott (2014-04-04). "Helium gas bubble trapped in liquid helium in high magnetic field". Applied Physics Letters. 104 (13): 133511. doi:10.1063/1.4870646. Retrieved 2022-10-27.
- ↑ Hannahs, Scott. "NSF Award". National Science Foundation. Retrieved 2022-10-27.
- ↑ Hannahs, Scott. "Commissioning of the 36 T Series-Connected Hybrid Magnet at the NHMFL".
- ↑ Hannahs, Scott. "R&D 100 Award 2022-32 tesla superconducting magnet".
- ↑ Orcid
- ↑ Google Scholar
- ↑ FSU News
- ↑ Hannahs, Scott. "32 Tesla Superconducting Magnet".
External Links[edit]
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