Lithium-intercalation-induced structural evolution and superconductivity modulation in 2H-LixTaSe2

doi:10.1088/1674-1056/ade24f

中国物理B ›› 2025, Vol. 34 ›› Issue (11): 117402-117402.doi: 10.1088/1674-1056/ade24f

Lithium-intercalation-induced structural evolution and superconductivity modulation in 2H-Li_xTaSe₂

Lijia Zhou(周立佳)¹, Xiangjiang Dong(董祥江)², Qiang Li(李强)¹, Xiaojun Kuang(匡小军)³, and Xianran Xing(邢献然)^1,†

1 Beijing Advanced Innovation Center for Materials Genome Engineering and Institute of Solid-State Chemistry, University of Science and Technology Beijing, Beijing 100083, China;
2 Center for High-Pressure Science and Technology Advanced Research, Beijing 100093, China;
3 Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China

收稿日期:2025-05-06 修回日期:2025-05-29 接受日期:2025-06-09 出版日期:2025-10-30 发布日期:2025-10-30
通讯作者: Xianran Xing E-mail:xing@ustb.edu.cn
基金资助:
This research was supported by the National Natural Science Foundation of China (Grant Nos. 22090042 and 22175018).

Lithium-intercalation-induced structural evolution and superconductivity modulation in 2H-Li_xTaSe₂

Lijia Zhou(周立佳)¹, Xiangjiang Dong(董祥江)², Qiang Li(李强)¹, Xiaojun Kuang(匡小军)³, and Xianran Xing(邢献然)^1,†

1 Beijing Advanced Innovation Center for Materials Genome Engineering and Institute of Solid-State Chemistry, University of Science and Technology Beijing, Beijing 100083, China;
2 Center for High-Pressure Science and Technology Advanced Research, Beijing 100093, China;
3 Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China

Received:2025-05-06 Revised:2025-05-29 Accepted:2025-06-09 Online:2025-10-30 Published:2025-10-30
Contact: Xianran Xing E-mail:xing@ustb.edu.cn
Supported by:
This research was supported by the National Natural Science Foundation of China (Grant Nos. 22090042 and 22175018).

摘要/Abstract

摘要： We systematically investigated the structural and superconducting properties of polycrystalline 2H-Li$_{x}$TaSe$_{2}$ ($0.1 \le x \le 1.0$) synthesized via a high-temperature solid-state reaction. Lithium (Li) intercalation induces an expansion along the $c$-axis and intralayer distortions within the Ta-Se coordination network. The superconducting transition temperature ($T_{\rm c}$) is increased to 2.95 K at $x = 0.1$ driven by the synergistic enhancement of the electronic density of states at the Fermi level, $N(E_{\rm F})$, and strengthened electron-phonon coupling. With further Li doping, although $N(E_{\rm F})$ continues to increase, lattice stiffening and pronounced distortions in the Ta-Se coordination polyhedra weaken the electron-phonon interaction, ultimately suppressing superconductivity. These findings highlight the critical role of intralayer structural modulation in governing structure-tunable superconductivity in layered materials.

关键词: superconductivity, Li intercalation, local structural distortion

Abstract: We systematically investigated the structural and superconducting properties of polycrystalline 2H-Li$_{x}$TaSe$_{2}$ ($0.1 \le x \le 1.0$) synthesized via a high-temperature solid-state reaction. Lithium (Li) intercalation induces an expansion along the $c$-axis and intralayer distortions within the Ta-Se coordination network. The superconducting transition temperature ($T_{\rm c}$) is increased to 2.95 K at $x = 0.1$ driven by the synergistic enhancement of the electronic density of states at the Fermi level, $N(E_{\rm F})$, and strengthened electron-phonon coupling. With further Li doping, although $N(E_{\rm F})$ continues to increase, lattice stiffening and pronounced distortions in the Ta-Se coordination polyhedra weaken the electron-phonon interaction, ultimately suppressing superconductivity. These findings highlight the critical role of intralayer structural modulation in governing structure-tunable superconductivity in layered materials.

Key words: superconductivity, Li intercalation, local structural distortion

中图分类号: (Metals; alloys and binary compounds)

74.70.Ad

74.62.Bf (Effects of material synthesis, crystal structure, and chemical composition) 74.25.Dw (Superconductivity phase diagrams)

Lijia Zhou(周立佳), Xiangjiang Dong(董祥江), Qiang Li(李强), Xiaojun Kuang(匡小军), and Xianran Xing(邢献然). Lithium-intercalation-induced structural evolution and superconductivity modulation in 2H-Li_xTaSe₂[J]. 中国物理B, 2025, 34(11): 117402-117402.

参考文献

[1] Wilson J A, Di Salvo F and Mahajan S 1975 Adv. Phys. 24 117
[2] Wilson J A and Yoffe A 1969 Adv. Phys. 18 193
[3] Rossnagel K 2011 J. Phys. Condens. Matter 23 213001
[4] Morosan E, Zandbergen H W, Dennis B, Bos J, Onose Y, Klimczuk T, Ramirez A, Ong N and Cava R J 2006 Nat. Phys. 2 544
[5] Morosan E, Wagner K E, Zhao L L, Hor Y, Williams A J, Tao J, Zhu Y and Cava R J 2010 Phys. Rev. B 81 094524
[6] Gamble F, DiSalvo F, Klemm R and Geballe T 1970 Science 168 568
[7] Katzke H, Tolédano P and Depmeier W 2004 Phys. Rev. B 69 134111
[8] Van Maaren M and Schaeffer G 1967 Phys. Lett. A 24 645
[9] Moncton D, Axe J and DiSalvo F 1975 Phys. Rev. Lett. 34 734
[10] Moncton D E, Axe J and DiSalvo F 1977 Phys. Rev. B 16 801
[11] Fleming R, Moncton D, McWhan D and DiSalvo F 1980 Phys. Rev. Lett. 45 576
[12] Freitas D, Rodière P, Osorio M, Navarro-Moratalla E, Nemes N, Tissen V, Cario L, Coronado E, García-Hernández M and Vieira S 2016 Phys. Rev. B 93 184512
[13] Li L, Deng X, Wang Z, Liu Y, Abeykoon M, Dooryhee E, Tomic A, Huang Y, Warren J B and Bozin E S 2017 npj Quantum Mater. 2 11
[14] Li X, Zhou M, Yang L and Dong C 2017 Supercond. Sci. Technol. 30 125001
[15] Li L, Sun Y, Zhu X, Wang B, Zhu X, Yang Z and Song W 2010 Solid State Commun. 150 2248
[16] Lawan Adam M, Buba Garba I, Alhaji Bala A, Aji Suleiman A, Muhammad Gana S and Lawan Adam F 2023 Phys. Rev. B 107 104510
[17] Adam M L, Liu Z, Moses O A, Wu X and Song L 2021 Nano Res. 14 2613
[18] Ali M N, Gibson Q D, Klimczuk T and Cava R J 2014 Phys. Rev. B 89 020505
[19] Li Y, Wu Y, Xu C, Liu N, Ma J, Lv B, Yao G, Liu Y, Bai H and Yang X 2021 Sci. Bull. 66 243
[20] Bhoi D, Khim S, Nam W, Lee B, Kim C, Jeon B G, Min B, Park S and Kim K H 2016 Sci. Rep. 6 24068
[21] Wu H, Li S, Susner M, Kwon S, Kim M, Haugan T and Lv B 2019 2D Materials 6 045048
[22] Lerf A, Sernetz F, Biberacher W and Schöllhorn R 1979 Mater. Res. Bull. 14 797
[23] Brauer H, Starnberg H, Holleboom L, Hughes H and Strocov V 2001 J. Phys. Condens. Matter 13 9879
[24] Murphy DW, Di Salvo F J, Hull Jr GWandWaszczak J V 1976 Inorg. Chem. 15 17
[25] Wu Y, Xing H, Lian C S, Lian H, He J, Duan W, Liu J, Mao Z and Liu Y 2019 Phys. Rev. Mater. 3 104003
[26] König A, Koepernik K, Schuster R, Kraus R, Knupfer M, Büchner B and Berger H 2012 Europhys. Lett. 100 27002
[27] Eibschutz M, Salomon D, Murphy D, Zahurak S and Waszczak J 1987 Chem. Phys. Lett. 135 591
[28] Allen P B and Mitrović B 1983 Solid State Phys. 37 1
[29] McMillan W L 1968 Phys. Rev. 167 331
[30] Wagner K, Morosan E, Hor Y, Tao J, Zhu Y, Sanders T, McQueen T, Zandbergen H, Williams A and West D 2008 Phys. Rev. B 78 104520
[31] Zhou M, Li X and Dong C 2018 Supercond. Sci. Technol. 31 065001
[32] Zhu X, Sun Y, Zhang S, Lei H, Li L, Zhu X, Yang Z, Song W and Dai J 2009 Solid State Commun. 149 1296
[33] Liu H, Huangfu S, Zhang X, Lin H and Schilling A 2021 Phys. Rev. B 104 064511

Lithium-intercalation-induced structural evolution and superconductivity modulation in 2H-Li_xTaSe₂

Lithium-intercalation-induced structural evolution and superconductivity modulation in 2H-Li_xTaSe₂

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Wenqian Tu(涂文倩), Run Lv(吕润), Dingfu Shao(邵定夫), Yuping Sun(孙玉平), and Wenjian Lu(鲁文建). Strain tuning of charge density wave and Mott-insulating states in monolayer VTe₂[J]. 中国物理B, 2025, 34(9): 97103-097103.
[2]	Xiao-Zhen Yan(颜小珍), Quan-Xian Wu(邬泉县), Lei-Lei Zhang(张雷雷), and Yang-Mei Chen(陈杨梅). Pressure-stabilized Li₂K electride with superconducting behavior[J]. 中国物理B, 2025, 34(9): 97405-097405.
[3]	Jin-Han Tan(谭锦函), Na Jiao(焦娜), Meng-Meng Zheng(郑萌萌), Ping Zhang(张平), and Hong-Yan Lu(路洪艳). Superconductivity and band topology of double-layer honeycomb structure M₂N₂ (M = Nb, Ta)[J]. 中国物理B, 2025, 34(9): 97402-097402.
[4]	Yang Shen(沈阳), Xiangjian Qian(钱湘坚), and Mingpu Qin(秦明普). Ground state of electron-doped t-t0-J model on cylinders: An investigation of finite size and boundary condition effects[J]. 中国物理B, 2025, 34(8): 87105-087105.
[5]	Yan Yan(闫岩), Chengao Jiang(蒋成澳), Wen Gao(高稳), Rui Chen(陈蕊), Xiaodong Yang(杨晓东), Runru Liu(刘润茹), Lihua Yang(杨丽华), and Lili Wang(王丽丽). A novel metastable structure and superconductivity of hydrogen-rich compound CdH₆ under pressure[J]. 中国物理B, 2025, 34(8): 86201-086201.
[6]	Xiaoci Ma(马孝慈), Yufei Ge(葛雨非), Yutong Hou(侯语同), Keyu Shi(施柯羽), Jiaqi Zhang(张佳琪), Gaoping Yue(岳高平), Qiang Tao(陶强), and Pinwen Zhu(朱品文). Heterogeneous TiC-based composite ceramics with high toughness[J]. 中国物理B, 2025, 34(8): 86104-086104.
[7]	Xiang Wang(汪翔), Chenlong Xie(谢晨龙), Haohao Hong(洪浩豪), Yanliang Wei(魏衍亮), Zhao Liu(刘召), and Tian Cui(崔田). Superconductivity in YbN₄H₁₂ under low pressures[J]. 中国物理B, 2025, 34(8): 87401-087401.
[8]	Wenhui Liu(刘雯慧), Jiajia Feng(冯嘉嘉), Wei Zhou(周苇), Sheng Li(李升), and Zhixiang Shi(施智祥). High-pressure studies on quasi-one-dimensional systems[J]. 中国物理B, 2025, 34(8): 88104-088104.
[9]	Hao Zhang(张浩), Shaojun Dong(董少钧), and Lixin He(何力新). Competing phases and suppression of superconductivity in hole-doped Hubbard model on honeycomb lattice[J]. 中国物理B, 2025, 34(7): 77102-077102.
[10]	Renjie Zhang(张任杰), Yudong Hu(胡裕栋), Yiwei Cheng(程以伟), Yigui Zhong(钟益桂), Xuezhi Chen(陈学智), Junqin Li(李俊琴), Kozo Okazaki, Yaobo Huang(黄耀波), Tian Shang(商恬), Shifeng Jin(金士锋), Baiqing Lv(吕佰晴), and Hong Ding(丁洪). Momentum-dependent anisotropy of the charge density wave gap in quasi-1D ZrTe_3-xSe_x (x = 0.015)[J]. 中国物理B, 2025, 34(7): 77106-077106.
[11]	Chang Su(苏畅), Wuhao Chen(陈吴昊), Wenjing Cheng(程文静), Jiabin Si(司佳斌), Qunfei Zheng(郑群飞), Jinlong Zhu(朱金龙), Lingyi Xing(邢令义), and Ying Liu(刘影). Pressure-induced superconductivity in Bi-doped BaFe₂(As_1-xBi_x)2 single crystals[J]. 中国物理B, 2025, 34(6): 67403-067403.
[12]	Jingyuan Qu(曲静远), Guojing Hu(胡国静), Cuili Xiang(向翠丽), Hui Guo(郭辉), Senhao Lv(吕森浩), Yechao Han(韩烨超), Guoyu Xian(冼国裕), Qi Qi(齐琦), Zhen Zhao(赵振), Ke Zhu(祝轲), Xiao Lin(林晓), Lihong Bao(鲍丽宏), Yongjin Zou(邹勇进), Lixian Sun(孙立贤), Haitao Yang(杨海涛), and Hong-Jun Gao(高鸿钧). Strongly tunable Ising superconductivity in van der Waals NbSe_2-xTe_x nanosheets[J]. 中国物理B, 2025, 34(6): 67401-067401.
[13]	Jiang-Ning Zhang(张江宁), Guo Wang(王果), Tian-Yi Han(韩天意), and Hai Huang(黄海). Anisotropic two-band ^α-model and its application to layered chalcogenide superconductor NbSe₂[J]. 中国物理B, 2025, 34(5): 57401-057401.
[14]	Jiawei Hu(胡佳玮), Yanghao Meng(孟养浩), He Zhang(张赫), Wei Zhong(钟韦), Hang Zhai(翟航), Xiaohui Yu(于晓辉), Binbin Yue(岳彬彬), and Fang Hong(洪芳). Well defined phase boundaries and superconductivity with high T_c in PbSe single crystal[J]. 中国物理B, 2025, 34(4): 46102-046102.
[15]	Zhengtao Liu(刘正涛), Zihan Zhang(张子涵), Hao Song(宋昊), Tian Cui(崔田), and Defang Duan(段德芳). Strain-modulated superconductivity of monolayer Tc₂B₂[J]. 中国物理B, 2025, 34(4): 47104-047104.