Study on the temperature-changing crystal structure of topological material γ-PtBi2

doi:10.16568/j.0254-6086.2022s1004

Nuclear Fusion and Plasma Physics ›› 2022, Vol. 42 ›› Issue (s1): 114-119.DOI: 10.16568/j.0254-6086.2022s1004

• Nuclear Fusion Engineering • Previous Articles Next Articles

Study on the temperature-changing crystal structure of topological material γ-PtBi2

ZHANG Shi-ju1, 2, LIU Wei2, YANG Meng3, LIN Yu2, 4, 5, FENG Ya6, SHI You-guo3,Kenya Shimada6, YANG Xiao-feng1, Darren C Peets2, 7, HE Shao-long2, 8

(1. School of Science, North University of China, Taiyuan 030051; 2. Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201; 3. Institute of Physics, Chinese Academy of Sciences, Beijing 100190; 4. Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou 350117; 5. College of Physics and Energy, Fujian Normal University, Fuzhou 350117; 6. Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima Japan 739-0046; 7. Institut fürFestkörper- und Materialphysik, TechnischeUniversität Dresden, Dresden Germany 01069; 8. Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Beijing 100049)

Received:2021-08-20 Revised:2022-01-19 Online:2022-05-15 Published:2022-05-20

拓扑材料γ-PtBi2的变温晶体结构研究

张世车, 刘威, 杨萌, 林宇, 冯娅, 石友国, Kenya Shimada, 杨晓峰, Darren C Peets, 何少龙

(1. 中北大学理学院，太原 030051； 2. 中国科学院宁波材料技术与工程研究所，宁波 315201； 3. 中国科学院物理研究所，北京 100190； 4. 福建省先进高场超导材料与工程协同创新中心，福州 350117； 5. 福建师范大学物理与能源学院，福州 350117； 6. 广岛同步辐射中心，日本广岛 739-0046； 7. 德累斯顿工业大学材料物理研究所，德国德累斯顿 01069； 8. 中国科学院大学材料科学与光电工程中心，北京100049)

作者简介:张世车(1996-)，男，山西运城人，硕士研究生，从事单晶生长及结构表征。
基金资助:
国家重点研发计划(2016YFA030060, 2017YFA0303600, 2017YFA0302901, 2019YFA0300604)

Abstract

Abstract: The crystal structure of γ-PtBi₂ at different temperatures was studied by using X-ray diffraction (XRD), angle-resolved photoemission spectroscopy (ARPES) and band-structure calculation methods. The crystal structure at room temperature was determined to be P31m by single crystal XRD. In order to determine the crystal structure of the sample at low temperature, we measured the electronic structure of the sample by ARPES and compared it with the calculated results. The results show that the structure of the sample is consistent with that of P31m, which indicates that the sample still maintains the P31m structure at low temperature. Furthermore, the high temperature XRD study shows that the crystal structure of the sample is still the P31m structure at high temperature.

Key words: Topology, X-ray diffraction, Crystal structure, ARPES

摘要： 利用X射线衍射(XRD)、角分辨光电子能谱(ARPES)和能带计算的方法研究了不同温度下γ-PtBi2的晶体结构。利用单晶XRD确定了室温下晶体的结构为P31m。为了确定低温时样品的晶体结构，用ARPES测得了样品的电子结构并与计算结果进行了对比，结果显示样品的结构与P31m相吻合，这表明在低温时样品依然保持P31m结构。进一步的高温XRD研究表明，在高温时样品的晶体结构仍为P31m结构。

关键词: 拓扑, X射线衍射, 晶体结构, 角分辨光电子能谱

CLC Number:

O785+.3

ZHANG Shi-ju, LIU Wei, YANG Meng, LIN Yu, FENG Ya, SHI You-guo, Kenya Shimada, YANG Xiao-feng, Darren C Peets, HE Shao-long. Study on the temperature-changing crystal structure of topological material γ-PtBi2[J]. Nuclear Fusion and Plasma Physics, 2022, 42(s1): 114-119.

张世车, 刘威, 杨萌, 林宇, 冯娅, 石友国, Kenya Shimada, 杨晓峰, Darren C Peets, 何少龙. 拓扑材料γ-PtBi2的变温晶体结构研究[J]. 核聚变与等离子体物理, 2022, 42(s1): 114-119.

References

[1] Okamoto H. The Bi-Pt (bismuth-platinum) system [J]. Journal of Phase Equilibria, 1991, 12: 207-210.

[2] Thirupathaiah S, Kushnirenko Y, Haubold E, et al. Possible origin of linear magnetoresistance: observation of Dirac surface states in layered PtBi2 [J]. Phys. Rev. B, 2018, 97: 035133.

[3] Oana M, Hoffmann R, Abruna H D, et al. Adsorption of CO on PtBi2 and PtBi surfaces [J]. Surface Science, 2005, 574(1): 1-16.

[4] Yang X, Bai H, Wang Z, et al. Giant linear magneto- resistance in nonmagenetic PtBi2 [J]. Appl. Phys. Lett., 2016, 108: 252401.

[5] Gao W, Hao N, Zheng F W, et al. Extremely large magnetoresistance in a topological semimetal candidate pyrite PtBi2 [J]. Phys. Rev. Lett., 2017, 118: 256601.

[6] Wu Y, Jo N H, Wang L L, et al. Fragility of fermi arcsin Dirac semimetals [J]. Phys. Rev. B, 2019, 99: 161113.

[7] Nie X A, Li S, Yang M, et al. Multiple topological insulator states in PtBi2 [J]. ACS Nano, 2020, 14(2): 2366-2372.

[8] Gao W, Zhu X, Zheng F, et al. A possible candidate for triply degenerate point fermionsin trigonal layered PtBi2 [J]. Nature Communications, 2018, 9: 3249.

[9] Shipunov G, Kovalchuk I, Piening B R, et al. Polymorphic PtBi2: growth, structure, and superconducting properties [J]. Phys. Rev. Mater., 2020, 4: 124202.

[10] Xu C Q, Xing X Z, Xu X, et al. Synthesis, physical properties, and band structure of the layered bismuthide PtBi2 [J]. Phys. Rev. B, 2016, 94: 165119.

[11] Feng Y, Jiang Q, Feng B, et al. Rashba-like spin splitting along three momentum directions in trigonal layered PtBi2 [J]. Nature Communications, 2019, 10: 4765.

[12] Schubert K, Bhan S, Biswas T K, et al. Einige Strukturdaten metallischer Phasen [J]. Naturwissens- chaften, 1968, 55: 660131.

[13] Kaiser M, Baranov A I, Ruck M. Bi2Pt (hP9) by low-temperature reduction of Bi13Pt3I7: reinvestigation of the crystal structure and chemical bonding analysis [J]. Zeitschrift fur Anorganische und Allgemeine Chemie, 2014, 640: 2742.

[14] Petříček V, Michal D, Lukáš P. Crystallographic computing System JANA2006: Generalfeatures [J]. Zeitschriftfür Kristallographie-Crystalline Materials, 2014, 229(5): 345.

[15] Hohenberg P, Kohn W. Inhomogeneous electron gas [J]. Phys. Rev., 1964, 136: 864.

[16] Kohn W, Sham L. Self-consistent equations including exchange and correlation effects [J]. Phys. Rev., 1965, 140: A1134.

[17] Giannozzi P, Baroni S, Bonini N, et al. QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials [J]. Journal of Physics: Condensed Matter., 2009, 21(39): 395502.

[18] Perdew J P, Burke K, Ernzerhof M. Generalized gradient approximation made simple [J]. Phys. Rev. Lett., 1996, 77: 3865

[19] Momma k, Izumi F. VESTA3 for three-dimensional visualization of crystal, volumetric and morphology data [J]. Journal of Applied Crystallography, 2011, 44(6): 1272-1276.

[20] Yao Q, Du Y P, Yang X J, et al. Bulk and surface electronic structure of hexagonal structured PtBi2 studied by angle-resolved photoemission spectroscopy [J]. Phys. Rev. B, 2016, 94(23): 5140.

Study on the temperature-changing crystal structure of topological material γ-PtBi2

拓扑材料γ-PtBi2的变温晶体结构研究

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 3

Recommended Articles

Metrics

[1]	YANG Ya-long1, 2, 3, XU Qiang-lin1, 3, LIU Wei1, 3, GAO Ge2. Analysis on network topology delay of ITER PF power supply field layer monitoring system [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2021, 41(2): 150-156.
[2]	YANG Ya-long1, 2, 3, LIU Wei1, 2, 3, GAO Ge1, HONG De-jian 1, 2. Design of field monitoring system for ITER poloidal field power supply based on EtherCAT [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2019, 39(3): 249-255.
[3]	PENG Cheng-wei1, 2, GAO Ge1, SHENG Zhi-cai1, ZHOU Yu1, 2. Topology design and ripple suppression of 14T MRI superconducting magnet power supply [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2019, 39(2): 144-150.