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article

Electrical Manipulation of Topological Phases in a Quantum Anomalous Hall Insulator

Su Kong Chong, Peng Zhang, Jie Li, Yinong Zhou, more

Advanced Materials > 35 > 11 > n/a - n/a

Quantum anomalous Hall phases arising from the inverted band topology in magnetically doped topological insulators have emerged as an important subject of research for quantization at zero magnetic fields. Though necessary for practical implementation, sophisticated electrical control of molecular beam epitaxy (MBE)‐grown quantum anomalous Hall matter have been stymied by growth and fabrication challenges...

article

Holy Fire and Body Image of the Holy Shroud: Divine Photography Hypothesis

Giulio Fanti

World Scientific News > 2023 > 176 > 104-120

Although the double body image of the Holy Shroud (HS) is still today inexplicable and even less reproducible, various hypotheses have been formulated which attempt to explain at least in part what is observed on the most important Relic of Christianity. Many of these hypotheses refer to an intense energy emitted by the corpse that often comes out of traditional science and calls into question the...

article

Tuning the Bandgap of Topological Edge States by Inclined‐Electric Field

Jingyi Liu, Zhongyao Li

physica status solidi (RRL) – Rapid Research Letters > 16 > 6 > n/a - n/a

Tuning the bandgap of topological edge states remains a challenge for the practical applications of 2D topological insulators (2DTIs). Herein, the inclined‐electric field effect on tuning the bandgap of topological edge states is proposed. It provides a new idea to tune the 2DTI‐junctions from semiconductor to metallic character without topological transition. As examples, the Bi(111)‐junctions based...

article

Controlled Switching of the Number of Skyrmions in a Magnetic Nanodot by Electric Fields (Adv. Mater. 11/2022)

Zhipeng Hou, Yadong Wang, Xiaoming Lan, Sai Li, more

Advanced Materials > 34 > 11 > n/a - n/a

Skyrmion Clusters An electric‐field‐driven cascading transition of skyrmion clusters in a nanostructured ferromagnetic/ferroelectric multiferroic heterostructure is realized by Zhipeng Hou, Yangfan Hu, and co‐workers, as described in article number 2107908, allowing a continuous multilevel transition of the number of skyrmions in a one‐by‐one manner. Most notably, the transition is nonvolatile and...

article

Controlled Switching of the Number of Skyrmions in a Magnetic Nanodot by Electric Fields

Zhipeng Hou, Yadong Wang, Xiaoming Lan, Sai Li, more

Advanced Materials > 34 > 11 > n/a - n/a

Magnetic skyrmions are topological swirling spin configurations that hold promise for building future magnetic memories and logic circuits. Skyrmionic devices typically rely on the electrical manipulation of a single skyrmion, but controllably manipulating a group of skyrmions can lead to more compact and memory‐efficient devices. Here, an electric‐field‐driven cascading transition of skyrmion clusters...

article

Intrinsic Electric Field and Excellent Photocatalytic Solar‐to‐Hydrogen Efficiency in 2D Janus Transition Metal Dichalcogenide

Xiaoqing Liu, Wei Kang, Jinghong Zhao, Yan Wang, more

physica status solidi (RRL) – Rapid Research Letters > 16 > 3 > n/a - n/a

By using systematic first‐principles calculations, the stability and electronic properties of 2D Janus transition metal dichalcogenides with intrinsic electric field for photocatalytic applications are investigated. A total of 18 MXY (M = V, Nb, Ta, Cr, Mo, W; X/Y = S, Se, Te) have been considered, in which nine structures are found to be stable, as indicated by phonon spectra and molecular dynamics...

article

Exposure of Infants to Gradient Fields in a Baby MRI Scanner

Fangfang Tang, Luca Giaccone, Jiahao Hao, Fabio Freschi, more

Bioelectromagnetics > 43 > 2 > 69 - 80

In pediatric magnetic resonance imaging (MRI), infants are exposed to rapid, time‐varying gradient magnetic fields, leading to electric fields induced in the body of infants and potential safety risks (e.g. peripheral nerve stimulation). In this numerical study, the in situ electric fields in infants induced by small‐sized gradient coils for a 1.5 T MRI scanner were evaluated. The gradient coil set...

article

The ecology of electricity and electroreception

Sam J. England, Daniel Robert

Biological Reviews > 97 > 1 > 383 - 413

Electricity, the interaction between electrically charged objects, is widely known to be fundamental to the functioning of living systems. However, this appreciation has largely been restricted to the scale of atoms, molecules, and cells. By contrast, the role of electricity at the ecological scale has historically been largely neglected, characterised by punctuated islands of research infrequently...

article

Hydrogen and Halogen Bonding in Homogeneous External Electric Fields: Modulating the Bond Strengths

Li Chen, Jingshuang Dang, Juan Du, Changwei Wang, more

Chemistry – A European Journal > 27 > 56 > 14042 - 14050

Recent years have witnessed various fascinating phenomena arising from the interactions of noncovalent bonds with homogeneous external electric fields (EEFs). Here we performed a computational study to interpret the sensitivity of intrinsic bond strengths to EEFs in terms of steric effect and orbital interactions. The block‐localized wavefunction (BLW) method, which combines the advantages of both...

article

Neural recruitment by ephaptic coupling in epilepsy

Rajat S. Shivacharan, Chia‐Chu Chiang, Xile Wei, Muthumeenakshi Subramanian, more

Epilepsia > 62 > 7 > 1505 - 1517

Objective One of the challenges in treating patients with drug‐resistant epilepsy is that the mechanisms of seizures are unknown. Most current interventions are based on the assumption that epileptic activity recruits neurons and progresses by synaptic transmission. However, several experimental studies have shown that neural activity in rodent hippocampi can propagate independently of synaptic transmission...

article

Low‐Dimensional Contact Layers for Enhanced Perovskite Photodiodes

Deying Luo, Taoyu Zou, Wengqiang Yang, Beng Xiang, more

Advanced Functional Materials > 30 > 24 > n/a - n/a

Controlling defects and energy‐band alignments are of paramount importance to the development of high‐performance perovskite‐based photodiodes. Yet, concurrent improvements in interfacial contacts and defect reduction simply by tailoring bottom contacts have not been investigated. An effective strategy is reported that can simultaneously improve energy‐band alignments and structural defects by introducing...

article

Design and Evaluation of a Rodent‐Specific Transcranial Magnetic Stimulation Coil: An In Silico and In Vivo Validation Study

Julia Boonzaier, Petar I. Petrov, Willem M. Otte, Nickolay Smirnov, more

Neuromodulation: Technology at the Neural Interface > 23 > 3 > 324 - 334

Background Rodent models are fundamental in unraveling cellular and molecular mechanisms of transcranial magnetic stimulation (TMS)‐induced effects on the brain. However, proper translation of human TMS protocols to animal models have been restricted by the lack of rodent‐specific focal TMS coils. Objective We aimed to improve TMS focalization in rodent brain with a novel small, cooled, and rodent‐specific...

article

Electric Field Effect on the Reactivity of Solid State Materials: The Case of Single Layer Graphene

Min A. Kim, Nianxiang Qiu, Zhiting Li, Qing Huang, more

Advanced Functional Materials > 30 > 13 > n/a - n/a

This manuscript reports the first example of charge‐doping‐induced reactivity enhancement in macroscopic‐sized solid state material. Single layer graphene is supported on a Si wafer that has a 300 nm thick SiO₂ layer and is heated photothermally in air to ≈240 °C. Applying both positive and negative pulsed back gate voltages increases the rate of graphene oxidation, as measured by the change of I_D...

article

Highly efficient head‐only magnetic field insert gradient coil for achieving simultaneous high gradient amplitude and slew rate at 3.0T (MAGNUS) for brain microstructure imaging

Thomas K. F. Foo, Ek Tsoon Tan, Mark E. Vermilyea, Yihe Hua, more

Magnetic Resonance in Medicine > 83 > 6 > 2356 - 2369

Purpose To develop a highly efficient magnetic field gradient coil for head imaging that achieves 200 mT/m and 500 T/m/s on each axis using a standard 1 MVA gradient driver in clinical whole‐body 3.0T MR magnet. Methods A 42‐cm inner diameter head‐gradient used the available 89‐ to 91‐cm warm bore space in a whole‐body 3.0T magnet by increasing the radial separation between the primary and the...

article

Parallel implementation of a PIC simulation algorithm using OpenMP

Alin Suciu, Anca Hangan, Anca Marginean, Marius Joldos, more

Annals of Computer Science and Information Systems > 2020 > Vol. 21 > 381--385

Particle-in-cell (PIC) simulations are focusing on the individual trajectories of a very large number of particles in self-consistent and external electric and magnetic fields; they are widely used in the study of plasma jets, for example. The main disadvantage of PIC simulations is the large simulation runtime,which often requires a parallel implementation of the algorithm. The current paper focuses...

article

Experimental research on separation efficiency of aerosol particles in vortex tube separators with electric field

T. Dziubak

Bulletin of the Polish Academy of Sciences. Technical Sciences > 2020 > Vol. 68, nr 3 > 503--516

A comparative analysis of filtration performance of tangential and axial inlet reverse-flow cyclone separators and vortex tube separators is presented. The study showed that vortex tube separators are characterized by a quality factor q several time higher than tangential inlet reverse-flow cyclone separators. The cyclone separators yield low separation efficiency and low filtration performance at...

article

Experimental research on separation efficiency of aerosol particles in vortex tube separators with electric field

Dziubak, T., Dziubak, T.

Bulletin of the Polish Academy of Sciences: Technical Sciences > 2020 > 3

article

Analysis of mobilization of inorganic ions in soil by electrokinetic remediation

Xiaojing Li, Lige Wang, Xueming Sun, Yuansheng Cong

Frontiers of Structural and Civil Engineering > 2019 > 13 > 6 > 1463-1473

Saline soil has imposed a serious threat on many expressway engineering and agricultural areas. This paper describes the performance of saline soil treatment using electrokinetic remediation technology. Comparison study involving sample soil and in situ soil is carried out. Two different electric fields, i.e., uniform and non-uniform are utilized to promote the migration of inorganic ions contained...

article

The Effect of Extremely Low‐Frequency Electromagnetic Fields on the Prevalence of Musculoskeletal Disorders and the Role of Oxidative Stress

Majid Bagheri Hosseinabadi, Narges Khanjani

Bioelectromagnetics > 40 > 5 > 354 - 360

Extremely low‐frequency electromagnetic fields (ELF‐EMFs) may cause negative health effects. This study aimed to investigate the direct and indirect effects of chronic exposure to extremely low‐frequency electric and magnetic fields on the prevalence of musculoskeletal disorders (MSDs). In this cross‐sectional study, 152 power plant workers were enrolled. The exposure level of employees was measured...

article

Power Frequency Electromagnetic Fields in the Urban Environment as the Object of Ecological-Geographical Research

V. I. Sturman

Geography and Natural Resources > 2019 > 40 > 1 > 15-21

The spatial distribution and temporal dynamics of industrial frequency electric and magnetic fields in St. Petersburg, Kazan, Belgorod and Petrozavodsk has been studied. It is established that electric fields of significant strengths occur near high voltage transmission lines (HVL) only. It is found that sanitary-protection and exclusion zones of the standard size do not always ensure a decrease in...

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Search results

Electrical Manipulation of Topological Phases in a Quantum Anomalous Hall Insulator

Holy Fire and Body Image of the Holy Shroud: Divine Photography Hypothesis

Tuning the Bandgap of Topological Edge States by Inclined‐Electric Field

Controlled Switching of the Number of Skyrmions in a Magnetic Nanodot by Electric Fields (Adv. Mater. 11/2022)

Controlled Switching of the Number of Skyrmions in a Magnetic Nanodot by Electric Fields

Intrinsic Electric Field and Excellent Photocatalytic Solar‐to‐Hydrogen Efficiency in 2D Janus Transition Metal Dichalcogenide

Exposure of Infants to Gradient Fields in a Baby MRI Scanner

The ecology of electricity and electroreception

Hydrogen and Halogen Bonding in Homogeneous External Electric Fields: Modulating the Bond Strengths

Neural recruitment by ephaptic coupling in epilepsy

Low‐Dimensional Contact Layers for Enhanced Perovskite Photodiodes

Design and Evaluation of a Rodent‐Specific Transcranial Magnetic Stimulation Coil: An In Silico and In Vivo Validation Study

Electric Field Effect on the Reactivity of Solid State Materials: The Case of Single Layer Graphene

Highly efficient head‐only magnetic field insert gradient coil for achieving simultaneous high gradient amplitude and slew rate at 3.0T (MAGNUS) for brain microstructure imaging

Parallel implementation of a PIC simulation algorithm using OpenMP

Experimental research on separation efficiency of aerosol particles in vortex tube separators with electric field

Experimental research on separation efficiency of aerosol particles in vortex tube separators with electric field

Analysis of mobilization of inorganic ions in soil by electrokinetic remediation

The Effect of Extremely Low‐Frequency Electromagnetic Fields on the Prevalence of Musculoskeletal Disorders and the Role of Oxidative Stress

Power Frequency Electromagnetic Fields in the Urban Environment as the Object of Ecological-Geographical Research

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