Atomic-Scale Strain Manipulation of a Charge Density Wave

Abstract

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 wave vector 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 new 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 wave vector 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 novel electronic states in any material where local strain or lattice symmetry breaking plays a role.

arXiv commentto appear in PNAS (2018)

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Cited by in corpus (38)

• Three-dimensional charge density wave and robust zero-bias conductance peak inside the superconducting vortex core of a kagome superconductor CsV${}_3$Sb${}_5$
• Discovery of a Cooper-Pair Density Wave State in a Transition-Metal Dichalcogenide
• Nanoscale decoupling of electronic nematicity and structural anisotropy in FeSe thin films
• Observation of a uniaxial strain-induced phase transition in the 2D topological semimetal IrTe${}_2$
• Possible strain induced Mott gap collapse in 1T-TaS${}_2$
• Chirality locking charge density waves in a chiral crystal
• Visualizing nematic transition and nanoscale suppression of superconductivity in Fe(Te,Se)
• Strain-induced stripe phase in charge ordered single layer NbSe${}_2$
• Spatially correlated incommensurate lattice modulations in an atomically thin high-temperature Bi_{2.1}Sr_{1.9}CaCu_{2.0}O_{8+δ} superconductors
• Effect of Strain on Charge Density Wave Order in the Holstein Model
• Coexisting charge-ordered states with distinct driving mechanisms in monolayer VSe${}_2$
• Multi-Band Superconductivity in Strongly Hybridized 1T'-WTe${}_2$/NbSe${}_2$ Heterostructures
• Unveiling hidden charge density waves in single-layer NbSe${}_2$ by impurities
• Machine learning for phase ordering dynamics of charge density waves
• Controllable phase transitions between multiple charge density waves in monolayer 1T-VSe${}_2$ via doping and strain engineering
• Strain Controlled Magnetic and Optical Properties of Monolayer 2H-TaSe${}_2$
• Twisted Bogoliubov quasiparticles in the superconducting NbSe${}_2$ monolayer on graphene
• Interplay of Charge Density Wave States and Strain at the Surface of CeTe${}_2$
• Charge ordered phases in the hole-doped triangular Mott insulator 4Hb-TaS2
• Charge Density Waves and the Effects of Uniaxial Strain on the Electronic Structure of 2H-NbSe${}_2$
• Nanoscale visualization of the thermally-driven evolution of antiferromagnetic domains in FeTe thin films
• Magnetism between magnetic adatoms on monolayer NbSe${}_2$
• Strain-Induced Charge Density Waves with Emergent Topological States in Monolayer NbSe2
• Moiré Modulation of Charge Density Waves
• Tunable biaxial strain device for low dimensional materials
• Quantifying magnetic field driven lattice distortions in kagome metals at the femto-scale using scanning tunneling microscopy
• Lattice-Driven Chiral Charge Density Wave State in 1T-TaS${}_2$
• Rotation of the dislocation grid in multilayer FeSe films and visualization of electronic nematic domains via orbital-selective tunneling
• Unconventional photo-induced charge-density-wave dynamics in 2H-NbSe${}_2$
• Role of interface hybridization on induced superconductivity in 1T${}^{\prime }$-WTe${}_2$ and 2H-NbSe${}_2$ heterostructures
• Charge instability of topological Fermi arcs in chiral crystal CoSi
• Influence of surface relaxations on scanning probe microscopy images of the charge density wave material 2H-NbSe${}_2$
• Charge-density-wave control by adatom manipulation and its effect on magnetic nanostructures
• Periodic surface modulation of $(LaSe{)}_{1.14}(NbS{e}_2)$ observed by scanning tunneling microscopy
• Nanoscale strain manipulation of smectic susceptibility in kagome superconductors
• Strain Engineering of Correlated Charge-Ordered Phases in 1T-TaS2
• Delusive chirality and periodic strain pattern in moiré systems
• Multiband charge density wave exposed in a transition metal dichalcogenide