Galvanomagnetic Properties of the Putative Type-II Dirac Semimetal PtTe

Overview

Journal Sci Rep

Specialty Science

Date 2018 Jul 28

PMID 30050089

Citations 1

Authors

Orest Pavlosiuk

Dariusz Kaczorowski

Affiliations

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Abstract

Platinum ditelluride has recently been characterized, based on angle-resolved photoemission spectroscopy data and electronic band structure calculations, as a possible representative of type-II Dirac semimetals. Here, we report on the magnetotransport behavior (electrical resistivity, Hall effect) in this compound, investigated on high-quality single-crystalline specimens. The magnetoresistance (MR) of PtTe is large (over 3000% at T = 1.8 K in B = 9 T) and unsaturated in strong fields in the entire temperature range studied. The MR isotherms obey a Kohler's type scaling with the exponent m = 1.69, different from the case of ideal electron-hole compensation. In applied magnetic fields, the resistivity shows a low-temperature plateau, characteristic of topological semimetals. In strong fields, well-resolved Shubnikov - de Haas (SdH) oscillations with two principle frequencies were found, and their analysis yielded charge mobilities of the order of 10 cm V s and rather small effective masses of charge carriers, 0.11 m and 0.21 m. However, the extracted Berry phases point to trivial character of the electronic bands involved in the SdH oscillations. The Hall effect data corroborated a multi-band character of the electrical conductivity in PtTe, with moderate charge compensation.

Citing Articles

Nontrivial Topological Properties and Synthesis of SnCoS with L2 Structure.

Chen G, Long B, Jin L, Zhang H, Cheng Z, Zhang X Nanomaterials (Basel). 2023; 13(8).

PMID: 37110975 PMC: 10141049. DOI: 10.3390/nano13081389.

References

Du X, Tsai S, Maslov D, Hebard A . Metal-insulator-like behavior in semimetallic bismuth and graphite. Phys Rev Lett. 2005; 94(16):166601. DOI: 10.1103/PhysRevLett.94.166601. View

Yang B, Nagaosa N . Classification of stable three-dimensional Dirac semimetals with nontrivial topology. Nat Commun. 2014; 5:4898. DOI: 10.1038/ncomms5898. View

Liang T, Gibson Q, Ali M, Liu M, Cava R, Ong N . Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd3As2. Nat Mater. 2014; 14(3):280-4. DOI: 10.1038/nmat4143. View

Xiong J, Kushwaha S, Liang T, Krizan J, Hirschberger M, Wang W . Evidence for the chiral anomaly in the Dirac semimetal Na₃Bi. Science. 2015; 350(6259):413-6. DOI: 10.1126/science.aac6089. View

Soluyanov A, Gresch D, Wang Z, Wu Q, Troyer M, Dai X . Type-II Weyl semimetals. Nature. 2015; 527(7579):495-8. DOI: 10.1038/nature15768. View

Li C, Wang L, Liu H, Wang J, Liao Z, Yu D . Giant negative magnetoresistance induced by the chiral anomaly in individual Cd3As2 nanowires. Nat Commun. 2015; 6:10137. PMC: 4703844. DOI: 10.1038/ncomms10137. View

Hu J, Liu J, Graf D, Radmanesh S, Adams D, Chuang A . π Berry phase and Zeeman splitting of Weyl semimetal TaP. Sci Rep. 2016; 6:18674. PMC: 4698660. DOI: 10.1038/srep18674. View

Wang L, Li C, Yu D, Liao Z . Aharonov-Bohm oscillations in Dirac semimetal Cd3As2 nanowires. Nat Commun. 2016; 7:10769. PMC: 4766419. DOI: 10.1038/ncomms10769. View

Ghimire N, Botana A, Phelan D, Zheng H, Mitchell J . Magnetotransport of single crystalline YSb. J Phys Condens Matter. 2016; 28(23):235601. DOI: 10.1088/0953-8984/28/23/235601. View

10.

Hirschberger M, Kushwaha S, Wang Z, Gibson Q, Liang S, Belvin C . The chiral anomaly and thermopower of Weyl fermions in the half-Heusler GdPtBi. Nat Mater. 2016; 15(11):1161-1165. DOI: 10.1038/nmat4684. View

11.

Wang Y, Zhang J, Zhu W, Zou Y, Xi C, Ma L . De Hass-van Alphen and magnetoresistance reveal predominantly single-band transport behavior in PdTe2. Sci Rep. 2016; 6:31554. PMC: 4981858. DOI: 10.1038/srep31554. View

12.

Autes G, Gresch D, Troyer M, Soluyanov A, Yazyev O . Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides XP_{2} (X=Mo, W). Phys Rev Lett. 2016; 117(6):066402. DOI: 10.1103/PhysRevLett.117.066402. View

13.

Wang C, Lu H, Shen S . Anomalous Phase Shift of Quantum Oscillations in 3D Topological Semimetals. Phys Rev Lett. 2016; 117(7):077201. DOI: 10.1103/PhysRevLett.117.077201. View

14.

Zeng L, Lou R, Wu D, Xu Q, Guo P, Kong L . Compensated Semimetal LaSb with Unsaturated Magnetoresistance. Phys Rev Lett. 2016; 117(12):127204. DOI: 10.1103/PhysRevLett.117.127204. View

15.

Pavlosiuk O, Swatek P, Wisniewski P . Giant magnetoresistance, three-dimensional Fermi surface and origin of resistivity plateau in YSb semimetal. Sci Rep. 2016; 6:38691. PMC: 5146676. DOI: 10.1038/srep38691. View

16.

Singha R, Pariari A, Satpati B, Mandal P . Large nonsaturating magnetoresistance and signature of nondegenerate Dirac nodes in ZrSiS. Proc Natl Acad Sci U S A. 2017; 114(10):2468-2473. PMC: 5347568. DOI: 10.1073/pnas.1618004114. View

17.

Niemann A, Gooth J, Wu S, Bassler S, Sergelius P, Huhne R . Chiral magnetoresistance in the Weyl semimetal NbP. Sci Rep. 2017; 7:43394. PMC: 5338026. DOI: 10.1038/srep43394. View

18.

Lv Y, Li X, Zhang B, Deng W, Yao S, Chen Y . Experimental Observation of Anisotropic Adler-Bell-Jackiw Anomaly in Type-II Weyl Semimetal WTe_{1.98} Crystals at the Quasiclassical Regime. Phys Rev Lett. 2017; 118(9):096603. DOI: 10.1103/PhysRevLett.118.096603. View

19.

Gao W, Hao N, Zheng F, Ning W, Wu M, Zhu X . Extremely Large Magnetoresistance in a Topological Semimetal Candidate Pyrite PtBi_{2}. Phys Rev Lett. 2017; 118(25):256601. DOI: 10.1103/PhysRevLett.118.256601. View

20.

Noh H, Jeong J, Cho E, Kim K, Min B, Park B . Experimental Realization of Type-II Dirac Fermions in a PdTe_{2} Superconductor. Phys Rev Lett. 2017; 119(1):016401. DOI: 10.1103/PhysRevLett.119.016401. View