Negative differential resistance and quantum oscillations in FeSb2 with embedded antimony

Tang, Fangdong1,2,3,4; Du, Qianheng5,6; Petrovic, Cedomir5,6; Zhang, Wei1,2; He, Mingquan7; Zhang, Liyuan3,4

2019-03

10.1088/1674-1056/28/3/037104

Chinese Physics B   影响因子和分区

1674-1056

1741-4199

We present a systematical study on single crystalline FeSb2 using electrical transport and magnetic torque measurements at low temperatures. Nonlinear magnetic field dependence of Hall resistivity demonstrates a multi-carrier transport instinct of the electronic transport. Current-controlled negative differential resistance (CC-NDR) observed in current-voltage characteristics below similar to 7 K is closely associated with the intrinsic transition similar to 5 K of FeSb2, which is, however, mediated by extrinsic current-induced Joule heating effect. The antimony crystallized in a preferred orientation within the FeSb2 lattice in the high-temperature synthesis process leaves its fingerprint in the de Haas-Van Alphen (dHvA) oscillations, and results in the regular angular dependence of the oscillating frequencies. Nevertheless, possible existence of intrinsic non-trivial states cannot be completely ruled out. Our findings call for further theoretical and experimental studies to explore novel physics on flux-free grown FeSb2 crystals.

two-carrier transport negative differential resistance quantum oscillations FeSb2 with embedded antimony

SCI ; EI

英语

通讯

Shenzhen Fundamental Subject Research Program, China[JCYJ20170817110751776] ; Shenzhen Fundamental Subject Research Program, China[JCYJ20170307105434022]

Physics

Physics, Multidisciplinary

WOS:000461457100004

IOP PUBLISHING LTD

20191306716183

Antimony ; Current voltage characteristics ; Iron compounds ; Negative resistance ; Quantum chemistry

Antimony and Alloys:546.4 ; Physical Chemistry:801.4

Web of Science

1.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
2.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
4.Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
5.Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA
6.SUNY Stony Brook, Dept Mat Sci & Chem Engn, Stony Brook, NY 11790 USA
7.Chongqing Univ, Coll Phys, Chongqing Key Lab Soft Condensed Matter Phys & Sm, Chongqing 401331, Peoples R China

Tang, Fangdong,Du, Qianheng,Petrovic, Cedomir,et al. Negative differential resistance and quantum oscillations in FeSb2 with embedded antimony[J]. Chinese Physics B,2019,28(3).

Tang, Fangdong,Du, Qianheng,Petrovic, Cedomir,Zhang, Wei,He, Mingquan,&Zhang, Liyuan.(2019).Negative differential resistance and quantum oscillations in FeSb2 with embedded antimony.Chinese Physics B,28(3).

Tang, Fangdong,et al."Negative differential resistance and quantum oscillations in FeSb2 with embedded antimony".Chinese Physics B 28.3(2019).