Skip to main content

Temperature−field phase diagram of extreme magnetoresistance

Author(s): Fallah Tafti, Fazel; Fallah Tafti, Fazel; Fallah Tafti, Fazel; Fallah Tafti, Fazel; Fallah Tafti, Fazel; et al

To refer to this page use:
Abstract: The recent discovery of extreme magnetoresistance (XMR) in LaSb introduced lanthanum monopnictides as a new platform to study this effect in the absence of broken inversion symmetry or protected linear band crossing. In this work, we report XMR in LaBi. Through a comparative study of magnetotransport effects in LaBi and LaSb, we construct a temperature−field phase diagram with triangular shape that illustrates how a magnetic field tunes the electronic behavior in these materials. We show that the triangular phase diagram can be generalized to other topological semimetals with different crystal structures and different chemical compositions. By comparing our experimental results to band structure calculations, we suggest that XMR in LaBi and LaSb originates from a combination of compensated electron−hole pockets and a particular orbital texture on the electron pocket. Such orbital texture is likely to be a generic feature of various topological semimetals, giving rise to their small residual resistivity at zero field and subject to strong scattering induced by a magnetic field.
Publication Date: 21-Jun-2016
Electronic Publication Date: 7-Jun-2016
Citation: Fallah Tafti, Fazel, Gibson, Quinn, Kushwaha, Satya, Krizan, Jason W., Haldolaarachchige, Neel, Cava, Robert Joseph. (2016). Temperature−field phase diagram of extreme magnetoresistance. Proceedings of the National Academy of Sciences, 113 (25), E3475 - E3481. doi:10.1073/pnas.1607319113
DOI: doi:10.1073/pnas.1607319113
ISSN: 0027-8424
EISSN: 1091-6490
Pages: 113.25:E3475 - E3481
Type of Material: Journal Article
Journal/Proceeding Title: Proceedings of the National Academy of Sciences
Version: Final published version. This is an open access article.
Notes: Proceedings of the National Academy of Sciences of the United States of America Volume 113, Issue 25, 21 June 2016, Pages E3475-E3481.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.