Magnetoresistance and Shubnikov-de Haas oscillation in YSb

Abstract

YSb crystals are grown and the transport properties under magnetic field are measured. The resistivity exhibits metallic behavior under zero magnetic field and the low temperature resistivity shows a clear upturn once a moderate magnetic field is applied. The upturn is greatly enhanced by increasing magnetic field, finally resulting in a metal-to-insulator-like transition. With temperature further decreased, a resistivity plateau emerges after the insulator-like regime. At low temperature (2.5 K) and high field (14 T), the transverse magnetoresistance (MR) is quite large (3.47 × 10 4 %). In addition, Shubnikov-de Haas (SdH) oscillation has also been observed in YSb. Periodic behavior of the oscillation amplitude reveals the related information about Fermi surface and two major oscillation frequencies can be obtained from the FFT spectra of the oscillations. The trivial Berry phase extracted from SdH oscillation, band structure revealed by angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations demonstrate that YSb is a topologically trivial material. 71.30.+h, 72.15.Eb * These authors contributed equally to this paper †

Giant magnetoresistance, three-dimensional Fermi surface and origin of resistivity plateau in YSb semimetal

“…Our results are in accord with those of other groups that appeared during preparation of our article. 14,15 The interpretation proposed by Ghimire 10 implying the role of field-induced metal-insulator transition in YSb.…”

Interplay of magnetism and transport in HoBi

“…Therefore, HoBi provides a unique opportunity to understand the electrical transport in magnetic XMR semimetals. PACS numbers: 71.20.Eh, 75.30.Kz, Non-magnetic rare-earth monopnictides with a chemical formula RX where R = Y or La and X = As, Sb, and Bi have attracted attention because they exhibit a non-saturating and extremely large magnetoresistance (XMR) [1][2][3][4][5][6][7][8][9][10][11][12][13]. A topological to trivial transition is reported in the LaX family, from LaBi to LaAs, with XMR being present on either side of the transition confirming that XMR originates from an electron-hole compensation instead of a topological band structure [6,14].…”

“…[1][2][3][4][5][6][7][8][9][10]. This is equivalent to H [110] used in the magnetization and transport experiments.Figures 2(a-d) show representative diffraction patterns along the [HHH] direction at T = 1.5 K and H = 0, 1.5, 2, and 3 T covering all the MM phase transitions.…”

Observation of open-orbit Fermi surface topology in the extremely large magnetoresistance semimetalMoAs2

“…Another two series of semimetals possessing quadratic XMR behavior and rich topological characteristics are the ZrSiS family [37][38][39] and LnX (Ln = La, Y, Nd, or Ce; X = Sb/Bi) series [40][41][42][43][44][45][46], whose electronic structures have been considerably studied both in theory and experiment [47][48][49][50][51][52][53]. While the band structures of the T mPn 2 series have been theoretically characterized in several work [32][33][34]54], experimental observations have not yet been reported.…”