601 citations · 1.2k across the 18 of their papers we have counts for
11 papers · 1 filter
Interlayer Sliding-Induced Intralayer Ferroelectric Switching in Bilayer Group-IV Monochalcogenides
Bo Xu, Junkai Deng, Xiangdong Ding +2
Two-dimensional materials with ferroelectric properties break the size effect of conventional ferroelectric materials and unlock unprecedented potentials of ferroelectric-related a…
Diverse electronic and magnetic properties of CrS2 enabling novel strain-controlled 2D lateral heterostructure spintronic devices
Kaiyun Chen, Junkai Deng, Yuan Yan +6
Lateral heterostructures of two-dimensional (2D) materials, integrating different phases or materials into a single piece of nanosheet, have attracted intensive research interests…
Modulating Peierls distortion of 1T_prime MoS2 via charge doping: a new charge density wave phase, reversible phase transition, and excellent electromechanical properties
Kaiyun Chen, Junkai Deng, Qian Shi +4
The 1T_prime phase of transition metal dichalcogenides (TMDs) is a low symmetry charge density wave (CDW) phase, which can be regarded as a periodically distorted structure (Peierl…
Electromechanical actuation of pristine graphene and graphene oxide: origin, optimization, and comparison
Jefferson Zhe Liu, Jeffrey Hughes
It is well recognized that the miniaturization of electromechanical devices will bring a revolution to humanity in the coming decades synonymous with the effects of miniaturizing e…
Mechanical buckling induced periodic kinking/stripe microstructures in mechanically peeled graphite flakes from HOPG
Manrui Ren, Ze Liu, Quan-shui Zheng +1
Mechanical exfoliation is a widely used method to isolate high quality graphene layers from bulk graphite. In our recent experiments, some ordered microstructures, consisting of a…
Cation ordering induced polarization enhancement for - ferroelectric-dielectric superlattices
Junkai Deng, Alex Zunger, Jefferson Zhe Liu
In this paper, an efficient computational material design approach (cluster expansion) is employed for the ferroelectric / system. Via exploring a conguration spa…
Anomalous elastic buckling of hexagonal layered crystalline materials in the absence of structure slenderness
Manrui Ren, Jeffernson Zhe Liu, Lifeng Wang +1
Hexagonal layered crystalline materials, such as graphene, boron nitride, tungsten sulfate, and so on, have attracted enormous attentions, due to their unique combination of atomis…
Piezoelectric properties of graphene oxide from the first-principles calculations
Zhenyue Chang, Wenyi Yan, Jin Shang +1
Some highly ordered compounds of graphene oxide (GO), e.g., the so-called clamped and unzipped GO, are shown to have piezoelectric responses via first-principles density functional…
Binding and interlayer force in the near-contact region of two graphite slabs: experiment and theory
Tim Gould, Ze Liu, Jefferson Zhe Liu +3
Via a novel experiment, Liu \emph{et al.} [Phys. Rev. B, {\bf 85}, 205418 (2012)] estimated the graphite binding energy, specifically the cleavage energy, an important physical pro…
Interlayer shear strength of single crystalline graphite
Ze Liu, Shoumo Zhang, Jiarui Yang +3
Reported values (0.2 MPa ~ 7.0 GPa) of the interlayer shear strength (ISS) of graphite are very dispersed. The main challenge to obtain a reliable value of ISS is the lack of preci…
Viscous damping of nanobeam resonators: humidity, thermal noise and the paddling effect
Chao Chen, Ming Ma, Jefferson Zhe Liu +2
The nanobeam resonator is the key mechanical component in the nano-electromechanical system. In addition to its high frequency originating from its low dimension, the performance i…