Extreme magnetoresistance and SdH oscillation in compensated semimetals of NbSb2 single crystals
文献类型：期刊论文
| 作者 | Guo, Lei1; Liu, Yu-Kuai; Gao, Guan-Yin; Huang, Ye-Yu; Gao, Heng7; Chen, Lei8; Zhao, Weiyao8; Ren, Wei7; Li, Shi-Yan; Li, Xiao-Guang |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2018 |
| 卷号 | 123期号:15 |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.5021637 |
| 英文摘要 | Topological semimetals represent one of the most interesting classes of materials that continue to attract worldwide interest. Here, we report magnetotransport properties of MPn(2)-type (M = Nb, Ta; Pn = P, As, Sb) NbSb2 single-crystal semimetals with a centrosymmetric Cl2/ml space group, paramagnetic ground state, and non-saturation parabolic-like magnetoresistance. The NbSb2 crystals show metallic conductivity down to 2 K and undergo a metal-to-insulator-like transition under a magnetic field B (B >= 4 T) and exhibit a resistivity plateau in the lowtemperature region (T <= 10 K), where the value of resistivity strongly depends on the magnitude and direction of the magnetic field. Upon sweeping the magnetic field from 0 to 14.5 T in the transverse configuration at T = 1.5 K, the NbSb2 crystal shows a large positive magnetoresistance (4.2 x 10(3) % at B = 14.5 T) with Shubnikov-de Haas (SdH) oscillation. Hall measurements reveal that both the carrier compensation between electrons and holes and the high mobility and large mean free path of carriers contribute to the large magnetoresistance. Fast Fourier transform analyses of angle-resolved SdH oscillation indicate that the Fermi surface of the NbSb2 crystal is quasi-two-dimensional with three-dimensional components. These findings, together with the theoretically calculated electronic band structure obtained within the framework of density functional theory, suggest that NbSb2 is a good candidate compensated semimetal for further theoretical and experimental investigation of this family of materials. Published by AIP Publishing. |
| 学科主题 | Physics, Applied |
| 出版者 | AMER INST PHYSICS |
| WOS记录号 | WOS:000430570700022 |
| 资助机构 | This work was supported by the National Natural Science Foundation of China (Grant Nos. 51572278, 51502129, 51332007, and 51672171) and the National Basic Research Program of China (Grant Nos. 2016YFA0300103, 2015CB921201, and 2015CB921600). The Eastern Scholar Program from the Shanghai Municipal Education Commission, the Fok Ying Tung Education Foundation, the Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase), and the China Scholarship Council are also acknowledged. ; This work was supported by the National Natural Science Foundation of China (Grant Nos. 51572278, 51502129, 51332007, and 51672171) and the National Basic Research Program of China (Grant Nos. 2016YFA0300103, 2015CB921201, and 2015CB921600). The Eastern Scholar Program from the Shanghai Municipal Education Commission, the Fok Ying Tung Education Foundation, the Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase), and the China Scholarship Council are also acknowledged. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24978]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Southeast Univ, Sch Phys, Nanjing 211189, Jiangsu, Peoples R China 3.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China 4.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China 6.Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China 7.Fudan Univ, Lab Adv Mat, Shanghai 200433, Peoples R China 8.Shanghai Univ, Phys Dept, Int Ctr Quantum & Mol Struct, Shanghai 200444, Peoples R China 9.Univ Wollongong, ISEM, Innovat Campus, Wollongong, NSW 2500, Australia |
| 推荐引用方式 GB/T 7714 | Guo, Lei,Liu, Yu-Kuai,Gao, Guan-Yin,et al. Extreme magnetoresistance and SdH oscillation in compensated semimetals of NbSb2 single crystals[J]. JOURNAL OF APPLIED PHYSICS,2018,123(15). |
| APA | Guo, Lei.,Liu, Yu-Kuai.,Gao, Guan-Yin.,Huang, Ye-Yu.,Gao, Heng.,...&Zheng, Ren-Kui.(2018).Extreme magnetoresistance and SdH oscillation in compensated semimetals of NbSb2 single crystals.JOURNAL OF APPLIED PHYSICS,123(15). |
| MLA | Guo, Lei,et al."Extreme magnetoresistance and SdH oscillation in compensated semimetals of NbSb2 single crystals".JOURNAL OF APPLIED PHYSICS 123.15(2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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