Observation of Open-Orbit Fermi Surface Topology in Extremely Large Magnetoresistance Semimetal MoAs${}_2$

Abstract

While recent advances in band theory and sample growth have expanded the series of extremely large magnetoresistance (XMR) semimetals in transition metal dipnictides $TmP{n}_2$ ($Tm$ = Ta, Nb; $Pn$ = P, As, Sb), the experimental study on their electronic structure and the origin of XMR is still absent. Here, using angle-resolved photoemission spectroscopy combined with first-principles calculations and magnetotransport measurements, we performed a comprehensive investigation on MoAs${}_2$, which is isostructural to the $TmP{n}_2$ family and also exhibits quadratic XMR. We resolve a clear band structure well agreeing with the predictions. Intriguingly, the unambiguously observed Fermi surfaces (FSs) are dominated by an open-orbit topology extending along both the [100] and [001] directions in the three-dimensional Brillouin zone. We further reveal the trivial topological nature of MoAs${}_2$ by bulk parity analysis. Based on these results, we examine the proposed XMR mechanisms in other semimetals, and conclusively ascribe the origin of quadratic XMR in MoAs${}_2$ to the carriers motion on the FSs with dominant open-orbit topology, innovating in the understanding of quadratic XMR in semimetals.

arXiv comment6 pages, 4 figures

References in corpus (55)

• Topological Insulators
• Topological insulators and superconductors
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Topological Insulators in Three Dimensions
• Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
• Discovery of a Three-dimensional Topological Dirac Semimetal, Na3Bi
• Topological Crystalline Insulators
• Dirac semimetal and topological phase transitions in A3Bi (A=Na, K, Rb)
• Experimental discovery of Weyl semimetal TaAs
• Topological nodal semimetals
• Titanic Magnetoresistance in WTe2
• Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd${}_3$As${}_2$
• Topological Crystalline Insulators in the SnTe Material Class
• Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
• Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
• Evidence for Helical Edge Modes in Inverted InAs/GaSb Quantum Wells
• Topological Nodal Line Semimetal and Dirac Semimetal State in Antiperovskite Cu${}_3$PdN
• Dirac Cone Protected by Non-Symmorphic Symmetry and 3D Dirac Line Node in ZrSiS
• Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
• Probing the Low-Energy Electronic Structure of Complex Systems by ARPES
• Giant negative magnetoresistance induced by the chiral anomaly in individual Cd3As2 nanowires
• Consequences of breaking time reversal symmetry in LaSb: a resistivity plateau and extreme magnetoresistance
• Large nonsaturating magnetoresistance and signature of non-degenerate Dirac nodes in ZrSiS
• Signature of strong spin-orbital coupling in the large non-saturating magnetoresistance material WTe2
• Large linear magnetoresistance in Dirac semi-metal Cd3As2 with Fermi surfaces close to the Dirac points
• Anisotropic giant magnetoresistance in NbSb2
• Unexpected Dirac-Node Arc in the Topological Line-Node Semimetal HfSiS
• Magnetic Field Effects on Transport Properties of PtSn4
• Two-Dimensional Oxide Topological Insulator With Iron-Pnictide Superconductor LiFeAs Structure
• Large magnetoresistance in LaBi: origin of field-induced resistivity upturn and plateau in compensated semimetals
• Compensated semimetal LaSb with unsaturated magnetoresistance
• Surface dominated transport in single crystalline nanoflake devices of topological insulator Bi1.5Sb0.5Te1.8Se1.2
• Resistivity plateau and extremely large magnetoresistance in NbAs2 and TaAs2
• Extremely Large Magnetoresistance in the Nonmagnetic Metal PdCoO2
• Extremely large and significantly anisotropic magnetoresistance in ZrSiS single crystals
• Presence of Exotic Electronic Surface States in LaBi and LaSb
• Observation of pseudo two dimensional electron transport in the rock salt type topological semimetal LaBi
• Exploration and prediction of topological electronic materials based on first-principles calculations
• Perfect charge compensation in extremely large magnetoresistance materials LaSb and LaBi revealed by the first-principles calculations
• Fermi surface topology and negative longitudinal magnetoresistance observed in centrosymmetric NbAs2 semimetal
• On the metallic conductivity of the delafossites PdCoO2 and PtCoO2
• Emergence of topological bands on the surface of ZrSnTe crystal
• Anomalous electronic structure and magnetoresistance in TaAs${}_2$
• Evidence of topological insulator state in the semimetal LaBi
• Giant semiclassical magnetoresistance in high mobility TaAs2 semimetal
• Large magnetoresistance in the antiferromagnetic semi-metal NdSb
• Electronic structures of transition metal dipnictides $XP{n}_2$ ($X$=Ta, Nb; $Pn$=P, As, Sb)
• Low-temperature magnetotransport of narrow-gap semiconductor FeSb2
• Giant magnetoresistance, three-dimensional Fermi surface and origin of resistivity plateau in YSb semimetal
• ARPES measurements of the superconducting gap of Fe-based superconductors and their implications to the pairing mechanism
• Magnetoresistance and robust resistivity plateau in MoAs2
• Magnetoresistance and Shubnikov-de Hass oscillation in YSb

Cited by in corpus (14)

• Magnetoresistance from Fermi Surface Topology
• Extremely large magnetoresistance in topologically trivial semimetal $\alpha$-WP${}_2$
• Extremely large magnetoresistance from electron-hole compensation in the nodal loop semimetal ZrP${}_2$
• Weak antilocalization effect and triply degenerate state in Cu-doped CaAuAs
• Quantum transport in a compensated semimetal W2As3 with nontrivial Z2 indices
• Electronic structure and open-orbit Fermi surface topology in isostructural semimetals NbAs${}_2$ and W${}_2$As${}_3$ with extremely large magnetoresistance
• Direct evidence of electron-hole compensation for XMR in topologically trivial YBi
• Shubnikov-de Haas and de Haas-van Alphen oscillations in topological semimetal CaAl4
• Dirac state switching in transition metal diarsenides
• Electronic structure in a transition metal dipnictide TaAs2
• Possible origin of extremely large magnetoresistance in the topological insulator CaBi2 single crystal
• Materials and possible mechanisms of extremely large magnetoresistance: A review
• Magnetoresistance and Scaling Laws in Type-II Weyl Semimetal WP_2
• Magnetoresistance in ZrSi$X$ ($X=$ S, Se, Te) nodal-line semimetals