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Wetting behaviour of surfaces is believed to be affected by van der Waals (vdW) forces, however, there is no clear demonstration of this. With the isolation of two-dimensional vdW layered materials it is possible to test this hypothesis. In…

Mesoscale and Nanoscale Physics · Physics 2022-01-26 Meenakshi Annamalai , Kalon Gopinadhan , Sang A Han , Surajit Saha , Hye Jeong Park , Eun Bi Cho , Brijesh Kumar , Sang-Woo Kim , T Venkatesan

We show that in anisotropic or layered superconductors impurities induce a van der Waals attraction between flux lines. This attraction together with the disorder induced repulsion may change the low B - low T phase diagram significantly…

Statistical Mechanics · Physics 2009-10-28 Sutapa Mukherji , Thomas Nattermann

In pure anisotropic or layered superconductors thermal fluctuations induce a van der Waals attraction between flux lines. This attraction together with the entropic repulsion has interesting consequences for the low field phase diagram; in…

Statistical Mechanics · Physics 2009-10-31 Andreas Volmer , Moshe Schwartz

While the interactions between water molecules are dominated by strongly directional hydrogen bonds (HBs), it was recently proposed that relatively weak, isotropic van der Waals (vdW) forces are essential for understanding the properties of…

Computational Physics · Physics 2016-07-07 Tobias Morawietz , Andreas Singraber , Christoph Dellago , Jörg Behler

Physical properties of two-dimensional van der Waals (vdWs) structures depend sensitively on both stacking orders and interlayer interactions. Yet, in most cases studied to date, the interlayer interaction is considered to be a static…

Mesoscale and Nanoscale Physics · Physics 2022-01-05 Ya-Xin Zhao , Xiao-Feng Zhou , Yu Zhang , Lin He

Interlayer interactions in 2D materials, also known as van der Waals (vdWs) interactions, play a critical role in the physical properties of layered materials. It is fascinating to manipulate the vdWs interaction, and hence to "redefine"…

Materials Science · Physics 2019-06-06 Shenyang Huang , Guowei Zhang , Fengren Fan , Chaoyu Song , Fanjie Wang , Qiaoxia Xing , Chong Wang , Hua Wu , Hugen Yan

Magnetic ordering in topological insulators (TI) is crucial for breaking time-reversal symmetry (TRS) and thereby opening a gap in the topological surface states (TSSs) [1-6], which is the key for realizing useful topological properties…

Topological insulators (TIs) are characterized by an insulating bulk and symmetry protected bound state on their boundaries. A "strong" topological insulator is characterized by robust conducting states on \emph{all} boundaries protected by…

Mesoscale and Nanoscale Physics · Physics 2020-12-16 Inbar Hotzen Grinberg , Mao Lin , Wladimir A. Benalcazar , Taylor L. Hughes , Gaurav Bahl

Van der Waals (vdW) crystals offer unique opportunities for modern nanophotonic applications owing to their intrinsic anisotropic nature. While most of them exhibit uniaxial anisotropy arising from weak out-of-plane vdW interaction, some of…

In this work, we expand the set of known layered compounds to include ionic layered materials, which are well known for superconducting, thermoelectric, and battery applications. Focusing on known ternary compounds from the ICSD, we screen…

Materials Science · Physics 2018-08-03 Robert McKinney , Prashun Gorai , Sukriti Manna , Eric Toberer , Vladan Stevanović

The effects of including the van der Waals interaction in the modelling of the single electron shuttle have been investigated numerically. It is demonstrated that the relative strength of the vdW-forces and the elastic restoring forces…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 T. Nord , A. Isacsson

We demonstrate advantages of samples made by mechanical stacking of exfoliated van der Waals materials for controlling the topological surface state of a 3-dimensional topological insulator (TI) via interaction with an adjacent magnet…

van der Waals (vdW) layered materials exhibit fruitful novel physical properties. The energy band of such materials depends strongly on their structures and a tremendous variation in their physical properties can be deduced from a tiny…

Materials Science · Physics 2023-10-27 Ding-Ming Huang , Xu Wu , Kai Chang , Hao Hu , Ye-Liang Wang , H. Q. Xu , Jian-Jun Zhang

Van der Waals torque determines the relative rotational motion between anisotropic objects, being of relevance to low-dimensional systems. Here we demonstrate a substantial torque between anisotropic two-dimensional materials that arises…

Computational Physics · Physics 2024-12-17 Zepu Kou , Yuquan Zhou , Zonghuiyi Jiang , Alexandre Tkatchenko , Xiaofei Liu

We explain in depth the previously proposed theory of the coherent Van der Waals(cVdW) interaction - the counterpart of Van der Waals (VdW) force - emerging in spatially coherently fluctuating electromagnetic fields. We show that cVdW…

Soft Condensed Matter · Physics 2015-06-22 Igor M. Kulic , Miodrag L. Kulic

We study the behavior of the critical Casimir force and its interplay with the van der Waals force acting between two parallel slabs separated at a distance $L$ from each other confining a non-polar simple fluid or a binary liquid mixture.…

Statistical Mechanics · Physics 2015-07-20 Galin Valchev , Daniel Dantchev

Twisted van der Waals (vdW) heterostructures have recently emerged as an attractive platform to study tunable correlated electron systems. However, the quantum mechanical nature of vdW heterostructures makes their theoretical and…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 S. Minhal Gardezi , Harris Pirie , William Dorrell , Jennifer E. Hoffman

The integration of high-refractive-index dielectrics into scalable photonic architectures is foundational to advancing integrated circuits and augmented reality (AR) displays. Van der Waals (vdW) materials offer exceptional optical…

We show how van der Waals (vdW) forces outcompete covalent and ionic forces to control ferroelectric ordering in CuInP2S6 nanoflakes as well as in CuInP2S6 and CuBiP2Se6 crystals. While the self-assembly of these 2D layered materials is…

Materials Science · Physics 2018-05-31 Jeffrey R. Reimers , Sherif Abdulkader Tawfik , Michael J. Ford

The instability of a liquid film in a nanotube is significantly influenced by van der Waals forces. A theoretical framework based on the axisymmetric Stokes equations is developed to investigate their effects through linear stability…

Fluid Dynamics · Physics 2026-04-08 Yixiao Mao , Chengxi Zhao , Yixin Zhang , Kai Mu , Ting Si