dc.creator | Tian, Yefan | |
dc.creator | Ghassemi, Nader | |
dc.creator | Ross, Joseph H. Jr. | |
dc.date.accessioned | 2021-07-29T20:26:38Z | |
dc.date.available | 2021-07-29T20:26:38Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Phys. Rev. Lett. 126, 236401 (2021) | en |
dc.identifier.uri | https://hdl.handle.net/1969.1/194475 | |
dc.description.abstract | We apply 125Te nuclear magnetic resonance (NMR) spectroscopy to investigate the Dirac semimetal ZrTe5. With the NMR magnetic field parallel to the b axis, we observe significant quantum magnetic effects. These include an abrupt drop at 150 K in spin-lattice relaxation rate. This corresponds to a gap-opening transition in the Dirac carriers, likely indicating the onset of excitonic pairing. Below 50 K, we see a more negative shift for the Tez bridging site, indicating the repopulation of Dirac levels with spin polarized carriers at these temperatures. This is the previously reported 3D quantum Hall regime; however, we see no sign of a charge density wave as has been proposed. | en |
dc.language.iso | en_US | |
dc.title | Gap-opening transition in Dirac semimetal ZrTe5 | en |
dc.type | Article | en |
local.department | Physics and Astronomy | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.126.236401 | |