Gate-tunable giant negative magnetoresistance in tellurene driven by quantum geometry
Marcello B. Silva Neto, Chang Niu, Marcus V. O. Moutinho, Pierpaolo Fontana, Claudio Iacovelli, Victor Velasco, Caio Lewenkopf, Peide D. Ye · 2026
Read Gate-tunable giant negative magnetoresistance in tellurene driven by quantum geometry by Marcello B. Silva Neto, Chang Niu, Marcus V. O. Moutinho, Pierpaolo Fontana, Claudio Iacovelli, Victor Velasco, Caio Lewenkopf, Peide D. Ye (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13328452.txt.
Description
Marcello Silva Neto and team report gate-tunable giant negative magnetoresistance in tellurene, driven by quantum geometry. Their 2026 paper notes that negative magnetoresistance in two-dimensional electron gases is well known, but its roots in complex topological stuff with odd quantum geometry stayed murky. In n-type tellurene films, the team saw magnetoresistance hit minus 90% of zero-field resistance, lasting up to 35 Tesla at freezing temperatures.
The effect faded when the chemical potential moved away from the conduction-band Weyl node, hinting at a quantum geometric root. The team puts forward two workings. One is quantum geometric lift of diffusion. The other is a magnetoelectric spin link that locks the spin of a circling Weyl fermion to its drift in a built-in polar field that breaks inversion. The diffusion lift yields a non-Markovian memory effect in magnetotransport, setting quantum geometry as a driver of giant negative magnetoresistance.
Catalog record
| CREATOR | Marcello B. Silva Neto, Chang Niu, Marcus V. O. Moutinho, Pierpaolo Fontana, Claudio Iacovelli, Victor Velasco, Caio Lewenkopf, Peide D. Ye |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 78 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |