Pressure-induced Lifshitz transition in the type-II Weyl semimetal WP2

被引：4

作者：

Chi, Zhenhua ^{[1
]}

Zhang, Junran ^{[2
,3
]}

Gong, Zisheng ^{[4
,5
]}

Peng, Feng ^{[6
]}

Wang, Xiangqi ^{[7
]}

Dong, Guohao ^{[8
]}

Li, Yanchun ^{[9
]}

Shi, Youguo ^{[8
,10
,11
]}

Ge, Yongheng ^{[4
,5
]}

Yang, Xin ^{[12
]}

Zhang, Zengming ^{[13
,14
,15
]}

Xu, Gang ^{[4
,5
]}

Hao, Ning ^{[16
]}

Zhou, Chao ^{[1
]}

Qin, Jinggang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China

[2] Res Inst Fudan Univ Ningbo, Ningbo 315336, Peoples R China

[3] Fudan Univ, Acad Engn & Technol, Shanghai 200433, Peoples R China

[4] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

[5] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

[6] Luoyang Normal Univ, Coll Phys & Elect Informat, Luoyang 471022, Peoples R China

[7] Jihua Lab, Testing Ctr, Foshan 528000, Peoples R China

[8] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[9] Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Ctr, Beijing 100049, Peoples R China

[10] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[11] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China

[12] Ctr High Pressure Sci & Technol Adv Res, Beijing 100094, Peoples R China

[13] Univ Sci & Technol China, Dept Phys, Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Peoples R China

[14] Univ Sci & Technol China, ICQD, Hefei 230026, Peoples R China

[15] Univ Sci & Technol China, Ctr Phys Expt, Hefei 230026, Peoples R China

[16] Chinese Acad Sci, Anhui Prov Key Lab Low Energy Quantum Mat & Device, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China

来源：

MATERIALS TODAY PHYSICS | 2024年 / 42卷

基金：

中国国家自然科学基金;

关键词：

Lifshitz transition; First-principles calculations; Weyl semimetal; High pressure; Diamond anvil cell; WP2; SUPERCONDUCTORS; TEMPERATURE;

D O I：

10.1016/j.mtphys.2024.101372

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report evidences of a pressure-induced Lifshitz transition in the type-II Weyl semimetal WP2 via resistance, synchrotron X-ray diffraction, and Raman scattering measurements with the aid of density functional theory calculations up to 50 GPa. The resistance at 2 K and 300 K and residual resistance ratio rise precipitously at ca. 20 GPa. The pristine orthorhombic structure is robust against pressures up to 50 GPa. There occurs a discontinuity in the unit cell volume, lattice parameter, lattice parameter ratio and axial compressibility at -20 GPa. Two Raman-active modes soften abruptly accompanied with appearance of a new Raman-active mode at -15 GPa. Density functional theory calculations identify drastic changes in the Fermi surface topology at-30 GPa. Our findings stimulate further pursuit of pressure-induced superconductivity via a Lifshitz transition in WP2.

引用

页数：7

共 30 条

[1] NEW HIGH-PRESSURE STRUCTURAL TRANSITION OF OXYGEN AT 96 GPA ASSOCIATED WITH METALLIZATION IN A MOLECULAR-SOLID [J].

AKAHAMA, Y ;

KAWAMURA, H ;

HAUSERMANN, D ;

HANFLAND, M ;

SHIMOMURA, O .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4690-4693

[2] TRANSITION-TEMPERATURE OF STRONG-COUPLED SUPERCONDUCTORS REANALYZED [J].

ALLEN, PB ;

DYNES, RC .

PHYSICAL REVIEW B, 1975, 12 (03) :905-922

[3] Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn5 [J].

Aoki, D. ;

Seyfarth, G. ;

Pourret, A. ;

Gourgout, A. ;

McCollam, A. ;

Bruin, J. A. N. ;

Krupko, Y. ;

Sheikin, I. .

PHYSICAL REVIEW LETTERS, 2016, 116 (03)

[4] Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides XP2 (X = Mo, W) [J].

Autes, G. ;

Gresch, D. ;

Troyer, M. ;

Soluyanov, A. A. ;

Yazyev, O. V. .

PHYSICAL REVIEW LETTERS, 2016, 117 (06)

[5] Collapse of the Normal-State Pseudogap at a Lifshitz Transition in the Bi2Sr2CaCu2O8+δ Cuprate Superconductor [J].

Benhabib, S. ;

Sacuto, A. ;

Civelli, M. ;

Paul, I. ;

Cazayous, M. ;

Gallais, Y. ;

Measson, M. -A. ;

Zhong, R. D. ;

Schneeloch, J. ;

Gu, G. D. ;

Colson, D. ;

Forget, A. .

PHYSICAL REVIEW LETTERS, 2015, 114 (14)

[6] FINITE ELASTIC STRAIN OF CUBIC CRYSTALS [J].

BIRCH, F .

PHYSICAL REVIEW, 1947, 71 (11) :809-824

[7] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[8] Temperature-Induced Lifshitz Transition and Possible Excitonic Instability in ZrSiSe [J].

Chen, F. C. ;

Fei, Y. ;

Li, S. J. ;

Wang, Q. ;

Luo, X. ;

Yan, J. ;

Lu, W. J. ;

Tong, P. ;

Song, W. H. ;

Zhu, X. B. ;

Zhang, L. ;

Zhou, H. B. ;

Zheng, F. W. ;

Zhang, P. ;

Lichtenstein, A. L. ;

Katsnelson, M., I ;

Yin, Y. ;

Hao, Ning ;

Sun, Y. P. .

PHYSICAL REVIEW LETTERS, 2020, 124 (23)

[9] Uncovering electron-phonon scattering and phonon dynamics in type-I Weyl semimetals [J].

Coulter, Jennifer ;

Osterhoudt, Gavin B. ;

Garcia, Christina A. C. ;

Wang, Yiping ;

Plisson, Vincent M. ;

Shen, Bing ;

Ni, Ni ;

Burch, Kenneth S. ;

Narang, Prineha .

PHYSICAL REVIEW B, 2019, 100 (22)

[10]

Fonari A., 2013, Source code for: Python program to evaluate off-resonance Raman activity using vasp code as the backend

← 1 2 3 →