A minimal model of solitons in nematic liquid crystals

Kavli Affiliate: Nicholas L. Abbott | Summary:Solitons in liquid crystals have generated considerable interest. Several hypotheses of varying complexity have been advanced to explain how they emerge, and a consensus has not emerged yet about the underlying forces responsible for their formation or their structure. In this work, we present a minimal model for soliton […]


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Periodic Artifact Reduction in Fourier transforms of Full Field Atomic Resolution Images

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Robert Hovden, Yi Jiang, Huolin L. Xin, Lena F. Kourkoutis, | Summary: The discrete Fourier transform is among the most routine tools used in high-resolution scanning / transmission electron microscopy (S/TEM). However, when calculating a Fourier transform, periodic boundary conditions are imposed and sharp discontinuities between […]


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Liquid Crystals as Multifunctional Interfaces for Trapping and Characterizing Microplastics

Kavli Affiliate: Nicholas L. Abbott | First 5 Authors: Fiona Mukherjee, Anye Shi, Xin Wang, Fengqi You, Nicholas L. Abbott | Summary: Identifying and removing microplastics (MPs) from the environment is a global challenge. This study explores how the colloidal fraction of common MPs behave at aqueous interfaces of liquid crystal (LC) films. We observed […]


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Liquid Crystals as Multifunctional Interfaces for Trapping and Characterizing Microplastics

Kavli Affiliate: Nicholas L. Abbott | Summary:Identifying and removing microplastics (MPs) from the environment is a global challenge. This study explores how the colloidal fraction of common MPs behave at aqueous interfaces of liquid crystal (LC) films. We observed polyethylene (PE) and polystyrene (PS) microparticles to be captured at the LC interface and exhibit distinct […]


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Ronchigram Simulation and Training through Ronchigram.com

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Suk Hyun Sung, Noah Schnitzer, William Millsaps, Lena F. Kourkoutis, Robert Hovden | Summary: This article introduces a training simulator for electron beam alignment using Ronchigrams. The interactive web application, www.ronchigram.com, is an advanced educational tool aimed at making scanning transmission electron microscopy (STEM) more accessible […]


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Dynamics of photo-induced ferromagnetism in oxides with orbital degeneracy

Kavli Affiliate: Ankit Disa | Summary:By using intense coherent electromagnetic radiation, it may be possible to manipulate the properties of quantum materials very quickly, or even induce new and potentially useful phases that are absent in equilibrium. For instance, ultrafast control of magnetic dynamics is crucial for a number of proposed spintronic devices and can […]


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Switchable moiré potentials in ferroelectric WTe2/WSe2 superlattices

Kavli Affiliate: Jie Shan | First 5 Authors: Kaifei Kang, Wenjin Zhao, Yihang Zeng, Kenji Watanabe, Takashi Taniguchi | Summary: Moir’e materials, with superlattice periodicity many times the atomic length scale, have enabled the studies of strong electronic correlations and band topology with unprecedented tunability. However, nonvolatile control of the moir’e potentials, which could allow […]


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Valley-coherent quantum anomalous Hall state in AB-stacked MoTe2/WSe2 bilayers

Kavli Affiliate: Jie Shan | First 5 Authors: Zui Tao, Bowen Shen, Shengwei Jiang, Tingxin Li, Lizhong Li | Summary: Moir’e materials provide fertile ground for the correlated and topological quantum phenomena. Among them, the quantum anomalous Hall (QAH) effect, in which the Hall resistance is quantized even under zero magnetic field, is a direct […]


Continue.. Valley-coherent quantum anomalous Hall state in AB-stacked MoTe2/WSe2 bilayers