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Flexible magnet-based antennas that can see through rock 可以透视岩石的柔性磁性天线
IF 40.9 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-22 DOI: 10.1038/s41928-026-01565-9
Matthew Parker
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引用次数: 0
A microscopic robot with onboard closed-loop control 带有板载闭环控制的微型机器人
IF 40.9 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-22 DOI: 10.1038/s41928-026-01564-w
Yan Huang
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引用次数: 0
Low-power memristor-based cellular neural networks with reduced overhead 基于记忆电阻的低功耗细胞神经网络
IF 34.3 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-21 DOI: 10.1038/s41928-025-01559-z
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引用次数: 0
Van der Waals heterostructures go multiferroic 范德华异质结构是多铁的
IF 40.9 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-21 DOI: 10.1038/s41928-025-01464-5
Luca Nessi, Riccardo Comin
Magnetic anisotropy in multiferroic van der Waals heterostructures can be electrically controlled, providing non-volatile and low-power operations driven by ferroelectric switching.
多铁范德华异质结构中的磁各向异性可以通过电气控制,提供由铁电开关驱动的非易失性和低功耗操作。
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引用次数: 0
Interferroic magnetoelectric coupling at CuCrP2S6/Fe3GeTe2 van der Waals heterojunctions 在CuCrP2S6/Fe3GeTe2 van der Waals的铁磁电耦合
IF 40.9 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-21 DOI: 10.1038/s41928-025-01461-8
Shanchuan Liang, Yinchang Ma, Baojuan Xin, Saif Siddique, Carter Fox, Olha Popova, Sabine M. Neumayer, Petro Maksymovych, Matthew L. Chin, Yixiao Wang, Hongrui Zhang, Hasitha Suriya Arachchige, Michael A. Susner, Benjamin S. Conner, David Mandrus, Thomas E. Murphy, Jun Xiao, Judy J. Cha, Wei-Hua Wang, Xixiang Zhang, Ramamoorthy Ramesh, Cheng Gong
Two-dimensional materials that combine ferroelectric and ferromagnetic orders could exhibit a range of exotic physical properties and find use in applications such as energy-efficient spintronics. However, long-range ferroic orders in two dimensions are prone to destruction. For example, depolarization fields can destabilize ferroelectric order and thermal fluctuations can suppress magnetic order. Here we report multiferroic van der Waals heterostructures made from atomic layers of ferroelectric CuCrP2S6 and ferromagnetic Fe3GeTe2. We demonstrate reversible, non-volatile ferroelectric control of the magnetic anisotropy of two-dimensional Fe3GeTe2, and with this, probe the interferroic magnetoelectric coupling. Polarization switching of CuCrP2S6 changes the magnetic coercivity of a 3.8-nm-thick Fe3GeTe2 layer by approximately 14 mT at a testing temperature of 153 K, with a control efficiency around 65%. The control efficiency decreases as the Fe3GeTe2 thickness increases due to the short-range interfacial magnetoelectric coupling of the heterostructure multiferroicity. A van der Waals heterostructure made from atomic layers of ferroelectric CuCrP2S6 and ferromagnetic Fe3GeTe2 can offer reversible, non-volatile ferroelectric control of two-dimensional magnetism.
结合铁电序和铁磁序的二维材料可以表现出一系列奇特的物理特性,并在诸如节能自旋电子学等应用中得到应用。然而,二维的长程铁序容易被破坏。例如,去极化场可以破坏铁电秩序,热波动可以抑制磁秩序。在这里,我们报道了由铁电CuCrP2S6和铁磁Fe3GeTe2原子层制成的多铁范德华异质结构。我们证明了二维Fe3GeTe2的磁各向异性的可逆、非易失性铁电控制,并以此来探测干涉磁电耦合。在153 K的测试温度下,CuCrP2S6的极化开关使3.8 nm厚Fe3GeTe2层的矫顽力改变了约14 mT,控制效率约为65%。由于异质结构多铁性的短程界面磁电耦合,控制效率随Fe3GeTe2厚度的增加而降低。
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引用次数: 0
Metallic charge transport in conjugated molecular bilayers 共轭分子双层中的金属电荷输运
IF 34.3 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-20 DOI: 10.1038/s41928-025-01553-5
Kuakua Lu, Yun Li, Qijing Wang, Linlu Wu, Xinglong Ren, Xu Chen, Luhao Liu, Yating Li, Xiaoming Xu, Qingkai Zhang, Di Wang, Liqi Zhou, Mingfei Xiao, Sai Jiang, Mengjiao Pei, Haoxin Gong, William Wood, Ian E. Jacobs, Junzhan Wang, Gang Chen, Peng Wang, Zhaosheng Li, Chunfeng Zhang, Xinran Wang, Xu Wu, Yeliang Wang, Wei Ji, Songlin Li, Jingsi Qiao, Yi Shi, Henning Sirringhaus
Metallic charge transport of field-induced carriers can be observed in single-crystal silicon over a wide temperature range. Such behaviour is rare in undoped organic semiconductors but is beneficial for engineering devices with advanced performance. Here we report metallic charge transport in conjugated molecular bilayers down to 8 K with an electrical conductivity of up to 245 S cm−1 and a Hall mobility larger than 100 cm2 V−1 s−1 at 20 K. We use molecular-crystal bilayers of the organic semiconductor 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene. We infer that this transport behaviour originates from the phenyl bridge coupling between the two molecular layers, which suppresses molecular vibrations and weakens Coulomb interactions. We develop a controlled method for introducing defects, using which we observe a disorder-driven metal–insulator transition in the molecular crystal.
在单晶硅中可以在很宽的温度范围内观察到场致载流子的金属电荷输运。这种行为在未掺杂的有机半导体中是罕见的,但对于具有先进性能的工程器件是有益的。在这里,我们报道了金属电荷在共轭分子双层中传输到8k,电导率高达245 S cm−1,20 K时霍尔迁移率大于100 cm2 V−1 S−1。我们使用了有机半导体2-癸基-7-苯基-[1]苯并噻吩[3,2-b][1]苯并噻吩的分子晶体双层。我们推断这种传输行为源于两个分子层之间的苯基桥耦合,它抑制了分子振动并减弱了库仑相互作用。我们开发了一种引入缺陷的控制方法,使用该方法我们观察了分子晶体中无序驱动的金属-绝缘体转变。
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引用次数: 0
A monolithic three-dimensional integrated red micro-LED display on silicon using AlInP/GaInP epilayers 用AlInP/GaInP薄膜制成的单片三维集成红色微型led显示屏
IF 34.3 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-20 DOI: 10.1038/s41928-025-01546-4
Juhyuk Park, Woojin Baek, Hyunsu Kim, Dongsoon Jung, Hokwon Kim, Baul Kim, Yong-Hoon Cho, Jaebong Lee, SungWook Lim, Shin Hyung Lee, Seungyeop Ahn, Seong Kwang Kim, Jaeyong Jeong, Joon Pyo Kim, Jinha Lim, Joonsup Shim, Dae-Myeong Geum, Sanghyeon Kim
Monolithic three-dimensional integration technology can eliminate the need for mechanical alignment between driving circuits and light-emitting diode (LED) pixels, leading to ultrahigh-resolution displays. However, this is challenging for red micro-LEDs, which are typically based on AlGaInP/GaInP, because of their low quantum efficiency and performance degradation when the pixel size is reduced. Here we report a high-pixel-density (1,700 pixels per inch) red active-matrix display consisting of micro-LEDs based on an epitaxial AlInP/GaInP double-quantum-well structure and silicon complementary metal–oxide–semiconductor integrated circuits. The epitaxial layer exhibits high internal quantum efficiency at low current densities (less than 10 A cm−2) due to a hole-dominant quantum well that reduces the non-radiative Shockley–Read–Hall recombination caused by electron lateral diffusion. We also use thickness fluctuation scattering in the quantum well to minimize the size-dependent quantum efficiency shift to higher current densities when reducing the size of the red micro-LEDs.
单片三维集成技术可以消除驱动电路和发光二极管(LED)像素之间的机械校准需求,从而实现超高分辨率显示。然而,这对于通常基于AlGaInP/GaInP的红色微型led来说是具有挑战性的,因为它们的量子效率低,并且当像素尺寸减小时性能会下降。本文报道了一种高像素密度(1700像素/英寸)的红色有源矩阵显示器,该显示器由基于外延AlInP/GaInP双量子阱结构和硅互补金属氧化物半导体集成电路的微型led组成。外延层在低电流密度(小于10 A cm−2)下表现出高的内部量子效率,这是由于空穴主导量子阱减少了由电子横向扩散引起的非辐射肖克利-里德-霍尔复合。当减小红色微型led的尺寸时,我们还使用量子阱中的厚度波动散射来最小化与尺寸相关的量子效率向更高电流密度的转移。
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引用次数: 0
Memristive cellular neural networks for fast in-pixel computing 用于快速像素内计算的记忆细胞神经网络
IF 34.3 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-19 DOI: 10.1038/s41928-025-01555-3
Vignesh Ravichandran, Yi Huang, Bryce Flannery, Tergel Molom-Ochir, Tina Maurer, Shiva Asapu, Ali Abdel-Maksoud, Nia Heermance, Remy Yoo, Joshua Tackie, Wuyu Zhao, Yunzhi Ling, Alex Guo, J. Joshua Yang, Qiangfei Xia
Cellular neural networks, inspired in part by the biological retina, offer a potential route to massively parallel analogue computing. However, the hardware implementation of such systems remains challenging. Here we report memristor-based cellular neural networks for image and video processing applications. We develop a Python-based digital twin for network simulations and as a graphical user interface for controlling the fabricated hardware. Simulations using the digital twin illustrate the network’s capabilities in image processing and in solving partial differential equations. We build hardware through the tape-out of a transistor-based network and the fabrication of a circuit board with multilevel non-volatile memristors as the synapses. We show that the hardware can be used to run image processing tasks including edge and horizontal line detection.
部分受到生物视网膜启发的细胞神经网络,为大规模并行模拟计算提供了一条潜在的途径。然而,这种系统的硬件实现仍然具有挑战性。在这里,我们报告了基于记忆器的细胞神经网络在图像和视频处理中的应用。我们开发了一个基于python的数字孪生,用于网络模拟,并作为控制制造硬件的图形用户界面。使用数字孪生的仿真说明了该网络在图像处理和求解偏微分方程方面的能力。我们通过带出一个基于晶体管的网络来构建硬件,并制造一个电路板,用多电平非易失性忆阻器作为突触。我们展示了硬件可以用来运行图像处理任务,包括边缘和水平线检测。
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引用次数: 0
A nonlinear parity–time-symmetric system for robust phase sensing 一种非线性奇偶-时间对称的鲁棒相位传感系统
IF 34.3 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-16 DOI: 10.1038/s41928-025-01542-8
Dong-Yan Chen, Lei Dong, Qing-An Huang
Parity–time-symmetric systems with loss and gain can be described by non-Hermitian Hamiltonians. In such systems, the inclusion of a nonlinear saturable gain can eliminate the imaginary part of frequency eigenvalues and suppress noise. Consequently, a system biased at an exceptional point can be used to create enhanced sensors. However, exceptional-point frequency sensing typically has a relatively small scaling factor and a limited dynamic range. Here we report a nonlinear parity–time-symmetric system that detects the phase difference between the loss and gain resonators. We show both theoretically and experimentally that the phase difference has a cube-root singularity with a large scaling factor over a wide dynamic range. We create a wearable capacitive temperature sensor based on exceptional-point phase sensing and show that it can measure temperatures from 36 °C to 55.5 °C, which corresponds to a perturbation from 0% to 3.95%, with a maximum normalized sensitivity of 400, an estimated dynamic range of 53.52 dB and an estimated signal-to-noise ratio of 63.8 dB. Compared with an exceptional-point frequency sensing sensor, the sensitivity of our sensor is enhanced by an order of magnitude.
具有损失和增益的奇偶-时间对称系统可以用非厄米哈密顿量来描述。在这种系统中,加入非线性可饱和增益可以消除频率特征值的虚部并抑制噪声。因此,在异常点上的系统偏差可用于创建增强的传感器。然而,异常点频率传感通常具有相对较小的比例因子和有限的动态范围。在这里,我们报告了一个非线性奇偶时间对称系统,检测损耗和增益谐振器之间的相位差。从理论和实验两方面证明,在较宽的动态范围内,相位差具有较大比例因子的立方根奇点。我们设计了一种基于异常点相位传感的可穿戴电容式温度传感器,并表明它可以测量36°C至55.5°C的温度,对应于0%至3.95%的扰动,最大归一化灵敏度为400,估计动态范围为53.52 dB,估计信噪比为63.8 dB。与异常点频率传感传感器相比,该传感器的灵敏度提高了一个数量级。
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引用次数: 0
An end-to-end memristive hardware system based on single-spike coding for human–machine interfaces 基于单尖峰编码的端到端记忆式人机接口硬件系统
IF 34.3 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-15 DOI: 10.1038/s41928-025-01544-6
Pek Jun Tiw, Rui Yuan, Teng Zhang, Lianfeng Yu, Yuchao Yang
Neuromorphic systems are crucial for the development of intelligent human–machine interfaces. Memristive hardware can emulate the neuron dynamics of biological systems, but typically uses rate coding, whereas single-spike coding (in which information is expressed by the firing time of a sole spike per neuron and the relative firing times between neurons) is faster and more energy efficient. Here we report a robust memristive hardware system that uses single-spike coding. For input encoding and neural processing, we use uniform vanadium oxide memristors to create a single-spiking circuit with under 1% coding variability. For synaptic computations, we develop a conductance consolidation strategy and mapping scheme to limit conductance drift due to relaxation in a hafnium oxide/tantalum oxide memristor chip, achieving relaxed conductance states with standard deviations within 1.2 μS. We also develop an incremental step and width pulse programming strategy to prevent resource wastage. The combined end-to-end hardware single-spike-coded system exhibits an accuracy degradation under 1.5% relative to a software baseline. We show that this approach can be used for real-time vehicle control from surface electromyography. Simulations show that our system consumes around 38 times lower energy with around 6.4 times lower latency than a conventional rate coding system.
神经形态系统对智能人机界面的发展至关重要。记忆体硬件可以模拟生物系统的神经元动态,但通常使用速率编码,而单尖峰编码(其中信息由每个神经元的唯一尖峰的放电时间和神经元之间的相对放电时间表示)更快,更节能。在这里,我们报告了一个使用单尖峰编码的鲁棒记忆硬件系统。对于输入编码和神经处理,我们使用均匀的氧化钒忆阻器来创建一个编码可变性低于1%的单尖峰电路。对于突触计算,我们开发了一种电导巩固策略和映射方案,以限制氧化铪/氧化钽忆阻芯片中由于弛豫引起的电导漂移,实现了标准偏差在1.2 μS以内的弛豫电导状态。我们还开发了一个增量步长和宽度脉冲规划策略,以防止资源浪费。结合端到端硬件单尖峰编码系统显示相对于软件基线的精度下降在1.5%以下。我们证明这种方法可以用于从表面肌电图实时车辆控制。仿真表明,与传统的速率编码系统相比,我们的系统能耗降低了38倍,延迟降低了6.4倍。
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引用次数: 0
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Nature Electronics
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