Atomic-scale strain manipulation of a charge density wave

被引：65

作者：

Gao, Shang ^{[1
]}

Flicker, Felix ^{[2
,3
]}

Sankar, Raman ^{[4
,5
]}

Zhao, He ^{[1
]}

Ren, Zheng ^{[1
]}

Rachmilowitz, Bryan ^{[1
]}

Balachandar, Sidhika ^{[1
]}

Chou, Fangcheng ^{[4
]}

Burch, Kenneth S. ^{[1
]}

Wang, Ziqiang ^{[1
]}

van Wezel, Jasper ^{[6
]}

Zeljkovic, Ilija ^{[1
]}

机构：

[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Oxford, Clarendon Lab, Dept Phys, Rudolph Peierls Ctr Theoret Phys, Oxford OX1 3PU, England

[4] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 10617, Taiwan

[5] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[6] Univ Amsterdam, Inst Phys, Inst Theoret Phys, NL-1090 GL Amsterdam, Netherlands

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2018年 / 115卷 / 27期

基金：

美国国家科学基金会;

关键词：

scanning tunneling microscopy; charge density waves; strain; NbSe2; TRANSITION-METAL DICHALCOGENIDES; T-C; ORDER; 2H-NBSE2; STATES; SUPERCONDUCTIVITY; FLUCTUATIONS; NEMATICITY; FIELDS; NBSE2;

D O I：

10.1073/pnas.1718931115

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A charge density wave (CDW) is one of the fundamental instabilities of the Fermi surface occurring in a wide range of quantum materials. In dimensions higher than one, where Fermi surface nesting can play only a limited role, the selection of the particular wavevector and geometry of an emerging CDW should in principle be susceptible to controllable manipulation. In this work, we implement a simple method for straining materials compatible with low-temperature scanning tunneling microscopy/spectroscopy (STM/S), and use it to strain-engineer CDWs in 2H-NbSe2. Our STM/S measurements, combined with theory, reveal how small strain-induced changes in the electronic band structure and phonon dispersion lead to dramatic changes in the CDW ordering wavevector and geometry. Our work unveils the microscopic mechanism of a CDW formation in this system, and can serve as a general tool compatible with a range of spectroscopic techniques to engineer electronic states in any material where local strain or lattice symmetry breaking plays a role.

引用

页码：6986 / 6990

页数：5

共 41 条

[1] Quasiparticle Interference, Quasiparticle Interactions, and the Origin of the Charge Density Wave in 2H-NbSe2 [J].

Arguello, C. J. ;

Rosenthal, E. P. ;

Andrade, E. F. ;

Jin, W. ;

Yeh, P. C. ;

Zaki, N. ;

Jia, S. ;

Cava, R. J. ;

Fernandes, R. M. ;

Millis, A. J. ;

Valla, T. ;

Osgood, R. M., Jr. ;

Pasupathy, A. N. .

PHYSICAL REVIEW LETTERS, 2015, 114 (03)

[2] EVIDENCE FOR A CONNECTION BETWEEN CHARGE-DENSITY WAVES AND PRESSURE ENHANCEMENT OF SUPERCONDUCTIVITY IN 2H-NBSE-2 [J].

BERTHIER, C ;

MOLINIE, P ;

JEROME, D .

SOLID STATE COMMUNICATIONS, 1976, 18 (9-10) :1393-1395

[3] Two Energy Gaps and Fermi-Surface "Arcs" in NbSe2 [J].

Borisenko, S. V. ;

Kordyuk, A. A. ;

Zabolotnyy, V. B. ;

Inosov, D. S. ;

Evtushinsky, D. ;

Buechner, B. ;

Yaresko, A. N. ;

Varykhalov, A. ;

Follath, R. ;

Eberhardt, W. ;

Patthey, L. ;

Berger, H. .

PHYSICAL REVIEW LETTERS, 2009, 102 (16)

[4] Emergence of coherence in the charge-density wave state of 2H-NbSe2 [J].

Chatterjee, U. ;

Zhao, J. ;

Iavarone, M. ;

Di Capua, R. ;

Castellan, J. P. ;

Karapetrov, G. ;

Malliakas, C. D. ;

Kanatzidis, M. G. ;

Claus, H. ;

Ruff, J. P. C. ;

Weber, F. ;

van Wezel, J. ;

Campuzano, J. C. ;

Osborn, R. ;

Randeria, M. ;

Trivedi, N. ;

Norman, M. R. ;

Rosenkranz, S. .

NATURE COMMUNICATIONS, 2015, 6

[5] In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor [J].

Chu, Jiun-Haw ;

Analytis, James G. ;

De Greve, Kristiaan ;

McMahon, Peter L. ;

Islam, Zahirul ;

Yamamoto, Yoshihisa ;

Fisher, Ian R. .

SCIENCE, 2010, 329 (5993) :824-826

[6] Magnetism, Superconductivity, and Spontaneous Orbital Order in Iron-Based Superconductors: Which Comes First and Why? [J].

Chubukov, Andrey V. ;

Khodas, M. ;

Fernandes, Rafael M. .

PHYSICAL REVIEW X, 2016, 6 (04)

[7] TIGHT BINDING FIT TO BANDSTRUCTURE OF 2H-NBSE2 AND NBS2 [J].

DORAN, NJ ;

RICCO, B ;

TITTERINGTON, DJ ;

WEXLER, G .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1978, 11 (04) :685-698

[8]

Feng YJ, 2015, NAT PHYS, V11, P865, DOI [10.1038/NPHYS3416, 10.1038/nphys3416]

[9] Order parameter fluctuations at a buried quantum critical point [J].

Feng, Yejun ;

Wang, Jiyang ;

Jaramillo, R. ;

van Wezel, Jasper ;

Haravifard, S. ;

Srajer, G. ;

Liu, Y. ;

Xu, Z. -A. ;

Littlewood, P. B. ;

Rosenbaum, T. F. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2012, 109 (19) :7224-7229

[10] Charge order in NbSe2 [J].

Flicker, Felix ;

van Wezel, Jasper .

PHYSICAL REVIEW B, 2016, 94 (23)

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