Article
Materials Science, Multidisciplinary
Alexander A. Balandin, Fariborz Kargar, Tina T. Salguero, Roger K. Lake
Summary: The advent of graphene and other two-dimensional van der Waals materials has led to significant progress in fundamental science. This review focuses on the emerging field of one-dimensional van der Waals quantum materials, which involves atomic chains and their unique properties. The authors discuss various quantum effects, such as charge-density-wave condensate and topological phases, as well as the potential applications of these materials in composites.
Article
Biotechnology & Applied Microbiology
Zhang Yi, Yu Hongda, Sun Mengdi, Xu Yong
Summary: This paper presents a hybrid swarming algorithm that combines Ant Colony Optimization and Physarum Polycephalum Algorithm, and introduces the use of Van Der Waals force in the pheromone update mechanism. The improved algorithm prevents premature convergence into local optima and has demonstrated excellent accuracy and convergence time in simulations. Comparison with other advanced algorithms also indicates its superior performance. The robustness and versatility of the hybrid algorithm are further verified using the capitals of 35 Asian countries.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Josu Diego, A. H. Said, S. K. Mahatha, Raffaello Bianco, Lorenzo Monacelli, Matteo Calandra, Francesco Mauri, K. Rossnagel, Ion Errea, S. Blanco-Canosa
Summary: The transition in VSe2 is mainly driven by electron-phonon interactions, despite the presence of Fermi-surface nesting, and van der Waals forces are responsible for melting of the charge density wave order.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Zi-Ao Wang, Weishan Xue, Faguang Yan, Wenkai Zhu, Yi Liu, Xinhui Zhang, Zhongming Wei, Kai Chang, Zhe Yuan, Kaiyou Wang
Summary: This study demonstrates electrically tunable charge transfer in Fe3GeTe2/Cr2Ge2Te6/Fe3GeTe2 all-magnetic van der Waals heterostructures. The directional charge transfer from metallic Fe3GeTe2 to semiconducting Cr2Ge2Te6 remarkably modifies the magnetic anisotropy energy of Fe3GeTe2, leading to a dramatically suppressed coercivity. The electrically selective control of magnetism shown here could inspire the development of spintronic devices based on van der Waals magnets.
Article
Chemistry, Multidisciplinary
Zemin Zhang, Xu Chen, Rui Hao, Qingliang Feng, Erqing Xie
Summary: Efficient photocarrier collection is achieved by developing a novel Au/CuBi2O4 (CBO)/PtSe2 van der Waals heterojunction photocathode, which overcomes carrier losses at semiconductor-electrolyte and semiconductor-substrate interfaces. The composite photocathode demonstrates significantly enhanced performance, indicating the significance of Van der Waals heterojunctions in solar-fuel systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wanying Li, Yimeng Guo, Zhaoping Luo, Shuhao Wu, Bo Han, Weijin Hu, Lu You, Kenji Watanabe, Takashi Taniguchi, Thomas Alava, Jiezhi Chen, Peng Gao, Xiuyan Li, Zhongming Wei, Lin-Wang Wang, Yue-Yang Liu, Chengxin Zhao, Xuepeng Zhan, Zheng Vitto Han, Hanwen Wang
Summary: This study successfully demonstrated a gate-programmable non-volatile memory by vertically assembling graphite, CuInP2S6, and MoS2 layers into a metal-ferroelectric-semiconductor (M-FE-S) architecture. The resulting devices integrate the functionalities of both ferroelectric memristor (FE-memristor) and metal-oxide-semiconductor field-effect transistor (MOS-FET), enabling gate-tunable giant electroresistance with multi-level ON-states in the FE-memristor. First-principles calculations revealed that this behavior originates from the specific band alignment at the FE-S interface. These findings pave the way for engineering ferroelectricity-mediated memories in future implementations of 2D nanoelectronics.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xiangdong Guo, Wei Lyu, Tinghan Chen, Yang Luo, Chenchen Wu, Bei Yang, Zhipei Sun, F. Javier Garcia de Abajo, Xiaoxia Yang, Qing Dai
Summary: 2D monolayers can be vertically stacked in van der Waals heterostructures to support a wide range of confined polaritons. This offers advantages in terms of controlling the constituent layers, stacking sequence, and twist angles. These heterostructures have extended the performance and functions of polaritons, and potential applications include nanophotonic integrated circuits.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuai Fu, Xiaoyu Jia, Aliaa S. Hassan, Heng Zhang, Wenhao Zheng, Lei Gao, Lucia Di Virgilio, Sven Krasel, David Beljonne, Klaas-Jan Tielrooij, Mischa Bonn, Hai I. Wang
Summary: By electrically tuning the defect occupancy, we achieved full control over charge separation states and photogating field direction at the graphene-WS2 vdW interface. Our results showed that the electron occupancy of two in-gap states, presumably originating from sulfur vacancies, explained the observed rich interfacial charge transfer dynamics and electrically tunable photogating fields, providing microscopic insights for optimizing optoelectronic devices.
Article
Chemistry, Multidisciplinary
Jinwon Lee, Jae Whan Park, Gil Young Cho, Han Woong Yeom
Summary: In this study, electronically and topologically distinct kinks are discovered along electronic domain walls in a correlated van der Waals insulator of 1T-TaS2. The atomic structures and in-gap electronic states of these kinks are unveiled, which are approximately mapped into Su-Schrieffer-Heeger solitons. The large degeneracy and robust geometrical nature of these kinks have potential applications in handling multilevel information in van der Waals materials architectures.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jialing Wen, Wenhui Tang, Zhuo Kang, Qingliang Liao, Mengyu Hong, Junli Du, Xiankun Zhang, Huihui Yu, Haonan Si, Zheng Zhang, Yue Zhang
Summary: This study introduces a new memory design using 2D graphdiyne as the charge-trapping layer, achieving a bilayer memory GDY/MoS2 with a large memory window and high degree of modulation. It demonstrates data storage capability in different operating modes, showcasing the potential for high-performance dielectric-free electronics and applications such as optical memories and artificial synaptic.
Article
Chemistry, Multidisciplinary
Wenjing Yan, Andrey Akimov, Maria Barra-Burillo, Manfred Bayer, Jonathan Bradford, Vitalyi E. Gusev, Luis E. Hueso, Anthony Kent, Serhii Kukhtaruk, Achim Nadzeyka, Amalia Patane, Andrew W. Rushforth, Alexey Scherbakov, Dmytro D. Yaremkevich, Tetiana L. Linnik
Summary: Strain engineering using coherent phonons allows for the control of physical properties in 2D-vdW crystals, with the creation of flexural phononic crystals through periodic modulation of elastic coupling in vdW layers. Using an ultrafast pump-probe technique, we have successfully generated and detected these phonons, providing exciting prospects for ultrafast manipulation of states in 2D materials for emerging quantum technologies.
Article
Multidisciplinary Sciences
A. J. Sternbach, S. H. Chae, S. Latini, A. A. Rikhter, Y. Shao, B. Li, D. Rhodes, B. Kim, P. J. Schuck, X. Xu, X-Y Zhu, R. D. Averitt, J. Hone, M. M. Fogler, A. Rubio, D. N. Basov
Summary: Layered crystals, such as tungsten diselenide, can exhibit unconventional optical properties that allow for the propagation of subdiffractional waveguide modes with hyperbolic dispersion. This study demonstrates optically induced hyperbolicity in WSe2 and explores the role of quantum transitions of excitons in the observed polaritonic response.
Article
Chemistry, Physical
Brahmanandam Javvaji, Xiaoying Zhuang, Timon Rabczuk, Bohayra Mortazavi
Summary: The paper proposes an innovative approach based on density functional theory (DFT) and machine-learning interatomic potentials (MLIPs) to accurately investigate higher-order deformation-induced electricity generation in 2D van der Waals (vdW) bilayers. The results show that the flexoelectric effect in bilayers can be significantly larger than in monolayers, providing insights for the design of energy harvesting devices.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Mingze Li, Yunjia Wei, Xingce Fan, Guoqun Li, Qi Hao, Teng Qiu
Summary: The study demonstrates that T-shaped mixed-dimensional SnSe2/ReS2 vdWHs can be used as ultra-sensitive HERS chips, improving the detection limit of rhodamine 6G to femtomolar level and allowing for sensitive screening of crystal violet in multicomponent solutions. The mixed-dimensional vdWHs show great application potential in enhancing Raman scattering signals.
Review
Computer Science, Information Systems
Zenghui Wang, Bo Xu, Shenghai Pei, Jiankai Zhu, Ting Wen, Chenyin Jiao, Jing Li, Maodi Zhang, Juan Xia
Summary: Here, we review the research progress in two-dimensional van der Waals heterostructures, including fabrication methods, material properties, and device applications, and provide perspectives on emerging research opportunities in this highly active field.
SCIENCE CHINA-INFORMATION SCIENCES
(2022)