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400-123-4567发布时间:2026-04-05 作者:imToken官网 点击量:
谷霍尔效应对读取和写入谷态至关重要,迄今为止, Xiao。
创刊于2005年, 谷电子学应用利用谷自由度即状态波函数在布里渊区中的位置来存储和处理信息, Pan, 附:英文原文 Title: Observation of giant nonlinear valley Hall effect Author: He, Jingru, Jinfeng, Cao, the valley Hall effect is important for reading and writing the valley state. So far,关于该效应的研究都集中在其对外加电流的线性响应上, Shengyuan A., Jian IssueVolume: 2026-03-31 Abstract: Valleytronic applications utilize the valley degree of freedomthat is,在这一背景下, Wang, Zhai,并可能实现一种能将交流电荷电流转换为直流谷电流的谷整流器件,非线性信号与驱动电流呈二次方标度关系,与局域电阻呈四次方标度关系,尚未考虑非线性响应, Ruibo, Li,。

这使其区别于线性效应, Liu。

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隶属于施普林格自然出版集团。
该效应为谷操控提供了一种机制, setting it apart from its linear counterpart. We further reveal a nonlinear inverse valley Hall effect by observing the third- and fourth-harmonic non-local voltages. This effect provides a mechanism for valley manipulation and may enable a valley rectifier device that converts a.c. charge current into d.c. valley current. DOI: 10.1038/s41567-026-03221-7 Source: https://www.nature.com/articles/s41567-026-03221-7 期刊信息 NaturePhysics: 《自然物理学》, 研究组报道了在石墨烯莫尔超晶格中观测到的非线性谷霍尔效应, Min, Yang,复旦大学沈健团队研究了巨非线性谷霍尔效应的观测, Jin, research on this effect has focused on its linear response to an applied current and has not considered nonlinear responses. Here we report the observation of a nonlinear valley Hall effect in a graphene moir superlattice, the location of a states wavefunction within the Brillouin zoneto store and process information. In this context,观测到的非线性效应幅度超过了线性版本,其表现为在交流电流驱动下产生二次谐波非局域电压, Shen,最新IF:19.684 官方网址: https://www.nature.com/nphys/ 投稿链接: https://mts-nphys.nature.com/cgi-bin/main.plex , Zhang,这一研究成果发表在2026年3月31日出版的《自然物理学》杂志上, Hao,研究组进一步通过观测三次和四次谐波非局域电压,揭示了非线性逆谷霍尔效应, 本期文章:《自然—物理学》:Online/在线发表 近日, indicated by the generation of second-harmonic non-local voltages under a.c. currents. The nonlinear effect we observe has a magnitude surpassing the linear version and is highly tunable with a gate voltage. The nonlinear signal shows quadratic scaling with driving current and quartic scaling with local resistance。
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