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相关论文: Multiple Fermi pockets revealed by Shubnikov-de Ha…

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We report transverse and longitudinal magneto-transport properties of NbAs2 single crystals. Attributing to the electron-hole compensation, non-saturating large transverse magnetoresistance reaches up to 8000 at 9 T at 1.8 K with mobility…

强关联电子 · 物理学 2016-05-10 Bing Shen , Xiaoyu Deng , Gabriel Kotliar , Ni Ni

The quantum oscillations of the magnetoresistance under ambient and high pressure have been studied for WTe$_2$ single crystals, in which extremely large magnetoresistance was discovered recently. By analyzing the Shubnikov-de Haas…

材料科学 · 物理学 2015-08-05 P. L. Cai , J. Hu , L. P. He , J. Pan , X. C. Hong , Z. Zhang , J. Zhang , J. Wei , Z. Q. Mao , S. Y. Li

Topological semimetals characterize a novel class of quantum materials hosting Dirac/Weyl fermions. The important features of topological fermions can be exhibited by quantum oscillations. Here we report the magnetoresistance and…

Here, we present a detailed study on the temperature and angular dependence of the Shubnikov-de-Haas (SdH) effect in the semi-metal WTe$_2$. This compound was recently shown to display a very large non-saturating magnetoresistance which was…

材料科学 · 物理学 2015-10-05 D. Rhodes , S. Das , Q. R. Zhang , B. Zeng , N. R. Pradhan , N. Kikugawa , E. Manousakis , L. Balicas

Layered transition-metal dichalcogenide (TMD) HfTe2 is a topological semimetal candidate with increasing attentions recently. The map of the Fermi surface is of interest and importance to understand its properties. Here we present a study…

其他凝聚态物理 · 物理学 2025-08-28 Qixuan Li , Gangjian Jin , Nannan Tang , Bin Wang , Bing Shen , Donghui Guo , Dingyong Zhong , Huakun Zuo , Huichao Wang

We investigated the magnetotransport properties of Fe-doped topological insulator Sb1.96 Fe0.04Te3 single crystals. With doping, the band structure changes significantly and multiple Fermi pockets become evident in the Shubnikov-de Haas…

材料科学 · 物理学 2019-05-01 Weiyao Zhao , David Cortie , Lei Chen , Zhi Li , Zengji Yue , Xiaolin Wang

Large non-saturating magnetoresistance has been observed in various materials and electron-hole compensation has been regarded as one of the main mechanisms. Here we present a detailed study of the angle-dependent Shubnikov -de Haas effect…

材料科学 · 物理学 2018-09-17 Lingxiao Zhao , Liangcai Xu , Huakun Zuo , Xuming Wu , Guoying Gao , Zengwei Zhu

We have studied the magnetotransport properties of a Sb$_2$Se$_2$Te single crystal. Magnetoresistance (MR) is maximum when the magnetic field is perpendicular to the sample surface and reaches to a value of 1100\% at $B$=31 T with no sign…

介观与纳米尺度物理 · 物理学 2017-09-27 K. Shrestha , V. Marinova , D. Graf , B. Lorenz , C. W. Chu

We report measurements of Shubnikov-de Haas (SdH) oscillations in single crystals of BiTeCl at magnetic fields up to 31 T and at temperatures as low as 0.4 K. Two oscillation frequencies were resolved at the lowest temperatures, $F_{1}=65…

材料科学 · 物理学 2015-06-22 C. Martin , A. V. Suslov , S. Buvaev , A. F. Hebard , P. Bugnon , H. Berger , A. Magrez , D. B. Tanner

We perform the quantum magnetotransport measurements and first-principles calculations on high quality single crystals of SmAlSi, a new topological Weyl semimetal candidate. At low temperatures, SmAlSi exhibits large non-saturated…

Rare earth-based monopnictides are among the most intensively studied groups of materials in which extremely large magnetoresistance has been observed. This study explores magnetotransport properties of two representatives of this group,…

材料科学 · 物理学 2024-01-05 Paulina Nowakowska , Orest Pavlosiuk , Piotr Wiśniewski , Dariusz Kaczorowski

We report on electronic transport measurements of electrostatically gated nano-devices of the semimetal WTe\textsubscript{2}. High mobility metallic behavior is achieved in the 2D limit by encapsulating thin flakes in an inert atmosphere.…

介观与纳米尺度物理 · 物理学 2017-02-01 Valla Fatemi , Quinn D. Gibson , Kenji Watanabe , Takashi Taniguchi , Robert J. Cava , Pablo Jarillo-Herrero

Electrical resistivity, magnetoresistivity, and the Hall effect have been studied in a topological semimetal WTe2 single crystal in the temperature range from 12 to 200 K under magnetic fields up to 9 T. It has been found that quadratic…

High magnetic field and low temperature transport is carried out in order to characterize the charge carriers of $\text{PtSe}_2$. In particular, the Shubnikov-de Haas oscillations arising at applied magnetic field strengths $\gtrsim…

材料科学 · 物理学 2025-10-31 Julian Max Salchegger , Rajdeep Adhikari , Bogdan Faina , Alberta Bonanni

Co$_3$Sn$_2$S$_2$ is a ferromagnetic semi-metal with Weyl nodes in its band structure and a large anomalous Hall effect below its Curie temperature of 177 K. We present a detailed study of its Fermi surface and examine the relevance of the…

介观与纳米尺度物理 · 物理学 2021-09-22 Linchao Ding , Jahyun Koo , Changjiang Yi , Liangcai Xu , Huakun Zuo , Meng Yang , Youguo Shi , Binghai Yan , Kamran Behnia , Zengwei Zhu

The bulk electronic structure of $T_d$-MoTe$_2$ features large hole Fermi pockets at the Brillouin zone center ($\Gamma$) and two electron Fermi surfaces along the $\Gamma-X$ direction. However, the large hole pockets, whose existence has…

Topological Weyl semimetal WTe2 with large-scale film form has a promising prospect for new-generation spintronic devices. However, it remains a hard task to suppress the defect states in large-scale WTe2 films due to the chemical nature.…

We performed the detailed magnetotransport measurements and first principle calculations to study the electronic properties of the transition metal dipnictides ZrAs2, which is a topological nodal-line semimetal. Extremely large unsaturated…

材料科学 · 物理学 2025-03-03 Junjian Mi , Sheng Xu , Shuxiang Li , Chenxi Jiang , Zheng Li , Qian Tao , Zhu-An Xu

Pd$_3$Bi$_2$Se$_2$ is a rare realization of a superconducting metal with a non-zero $Z_2$ topological invariant. We report the growth of high-quality single crystals of layered Pd$_3$Bi$_2$Se$_2$ with a superconducting transition at $T_c$ ~…

We present a study of angle-resolved quantum oscillations of electric and thermoelectric transport coefficients in semi-metallic WTe$_{2}$, which has the particularity of displaying a large B$^{2}$ magneto-resistance. The Fermi surface…

材料科学 · 物理学 2015-05-06 Zengwei Zhu , Xiao Lin , Juan Liu , Benoit Fauque , Qian Tao , Chongli Yang , Youguo Shi , Kamran Behnia
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