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Title: Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd 3 Pb

Journal Article · · Physical Review Materials

In this paper, the recent realization of topological electronic states such as Dirac and Weyl fermions in real materials and their potential for future energy and electronics applications has motivated interest in the study of new forms of topological behavior embodied through new materials. Pd3Pb is one such candidate predicted recently to host unique topological features, including a dispersionless band near the Fermi level and triple nodal points hosting Dirac fermions and open Fermi arcs. Here, we report the crystal growth and electric transport properties of Pd3Pb. Our low field magnetoresistance measurements indicate an anisotropic Fermi surface. We found that Pd3Pb manifests a large transverse magnetoresistance, which reaches 650% at 1.8 K and 14 T, and pronounced Shubnikov-de Haas (SdH) oscillations. Preliminary analysis of the field dependence of the SdH oscillations points to the likelihood of nontrivial Berry phase in Pd3Pb. Further studies in high field limit are desirable to extend the realization of the topological properties of the predicted novel fermions in this material.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1471586
Alternate ID(s):
OSTI ID: 1465229
Journal Information:
Physical Review Materials, Vol. 2, Issue 8; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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