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Title: Tuning the electronic and the crystalline structure of LaBi by pressure: From extreme magnetoresistance to superconductivity

Journal Article · · Physical Review B

Extreme magnetoresistance (XMR) in topological semimetals is a recent discovery which attracts attention due to its robust appearance in a growing number of materials. To search for a relation between XMR and superconductivity, we study the effect of pressure on LaBi. By increasing pressure, we observe the disappearance of XMR followed by the appearance of superconductivity at P ≈ 3.5 GPa. We find a region of coexistence between superconductivity and XMR in LaBi in contrast to other superconducting XMR materials. The suppression of XMR is correlated with increasing zero-field resistance instead of decreasing in-field resistance. At higher pressures, P ≈ 11 GPa, we find a structural transition from the face-centered cubic lattice to a primitive tetragonal lattice, in agreement with theoretical predictions. The relationship between extreme magnetoresistance, superconductivity, and structural transition in LaBi is discussed.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
OSTI ID:
1342243
Journal Information:
Physical Review B, Vol. 95, Issue 1; ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
ENGLISH

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Cited By (12)

Pressure‐Induced Superconductivity in Topological Semimetal Candidate TaTe 4 journal January 2020
Exploring Topological Superconductivity in Topological Materials journal July 2019
Concurrence of superconductivity and structure transition in Weyl semimetal TaP under pressure journal December 2017
First principles investigation of topological phase in XMR material TmSb under hydrostatic pressure journal May 2019
Magnetic field induced strong valley polarization in the three-dimensional topological semimetal LaBi journal October 2017
Tunable electronic structure and surface states in rare-earth monobismuthides with partially filled f shell journal August 2018
Behaviour of elastic and ultrasonic properties of curium monopnictides journal May 2018
Three-dimensional band structure of LaSb and CeSb:Absence of band inversion text January 2017
Tunable Electronic Structure and Surface States in Rare Earth Mono-Bismuthides with Partially Filled f Shell text January 2018
First principles investigation of topological phase in XMR material TmSb under hydrostatic pressure text January 2019
Exploring Topological Superconductivity in Topological Materials text January 2019
Unusual change in the Dirac-cone energy band upon two-step magnetic transition in CeBi text January 2019

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