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We have stabilized the {\alpha}-Fe1.6Ga0.4O3 (Ga doped {\alpha}-Fe2O3) system in rhombohedral structure. The system has shown magnetically canted ferromagnetic state and ferroelectric properties at room temperature. In first time, we…

Materials Science · Physics 2016-12-20 R. N. Bhowmik , Abdul Gaffar Lone

Tuning the electric properties of crystalline solids is at the heart of material science and electronics. Generating the electric field-effect via an external voltage is a clean, continuous and systematic method. Here, utilizing the unique…

Mesoscale and Nanoscale Physics · Physics 2020-05-12 Yue Li , Chen Chen , Wei Li , Xiaoyu Mao , Heng Liu , Jianyong Xiang , Anmin Nie , Zhongyuan Liu , Wenguang Zhu , Hualing Zeng

Controlling magnetism by using electric fields is a goal of research towards novel spintronic devices and future nano-electronics. For this reason, multiferroic heterostructures attract much interest. Here we provide experimental evidence,…

With its potential for drastically reduced operation power of information processing devices, electric field control of magnetism has generated huge research interest. Recently, novel perspectives offered by the inherently large spin-orbit…

Materials Science · Physics 2023-09-12 Arun Kumar Jaiswal , Robert Eder , Di Wang , Vanessa Wollersen , Matthieu Le Tacon , Dirk Fuchs

We experimentally investigate non-linear Hall effect as zero-frequency and second-harmonic transverse voltage responses to ac electric current for topological semimetal GeTe. A thick single-crystal GeTe flake is placed on the Si/SiO$_2$…

Mesoscale and Nanoscale Physics · Physics 2023-07-12 N. N. Orlova , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

The recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for novel spintronic devices with exceptional performances. However, in order to utilize 2D vdW magnets for building spintronic…

Magnetic and electronic transport properties of Co$_2$MnZ (Z = Al, Ga, Ge, Si, Sn) Heusler alloys were experimentally investigated. Electrical resistivity, in the temperature range from 4.2 to 300 K, as well as field dependences of the Hall…

Charge transfer plays a key role at the interfaces of heterostructures, which can affect electronic structures and ultimately the physical properties of the materials. However, charge transfer is difficult to manipulate externally once the…

Materials Science · Physics 2023-02-08 Zi-Ao Wang , Weishan Xue , Faguang Yan , Wenkai Zhu , Yi Liu , Xinhui Zhang , Zhongming Wei , Kai Chang , Zhe Yuan , Kaiyou Wang

The control of spin current is pivotal for spintronic applications, especially for spin-orbit torque devices. Spin Hall effect (SHE) is a prevalent method to generate spin current. However, it is difficult to manipulate its spin…

Computational Physics · Physics 2021-11-30 Jiaqi Zhou , Jean-Christophe Charlier

Voltage control of magnetic anisotropy (VCMA) in magnetic heterostructures is a key technology for achieving energy-efficiency electronic devices with ultralow power consumption. Here, we report the first demonstration of the VCMA effect in…

Materials Science · Physics 2017-03-24 Zhenchao Wen , Hiroaki Sukegawa , Takeshi Seki , Takahide Kubota , Koki Takanashi , Seiji Mitani

The prospect of all electrically controlled writing of ferromagnetic bits is highly desirable for developing scalable and energy-efficient spintronics devices. In the present work, we perform micromagnetic simulations to investigate the…

Mesoscale and Nanoscale Physics · Physics 2024-06-19 Avinash Chaurasiya , Manish Anand , Rajdeep Singh Rawat

We experimentally investigate a non-linear Hall effect for three-dimensional WTe$_2$ and Cd$_3$As$_2$ single crystals, representing Weyl and Dirac semimetals, respectively. We observe finite second-harmonic Hall voltage, which depends…

Mesoscale and Nanoscale Physics · Physics 2019-08-07 O. O. Shvetsov , V. D. Esin , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

We report on the dramatic evolution of the quantum Hall ferromagnet in the fractional quantum Hall regime at $\nu = 2/5$ filling. A large enhancement in the characteristic timescale gives rise to a dynamical transition into a novel…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Michelle Chen , Woowon Kang , Werner Wegscheider

The PZT/FeGa thin film memtranstor was prepared and the modulation of the magnetoelectric coefficient by external magnetic and electric fields was studied. The magnetoelectric coefficient of the PZT/FeGa memtranstor can be reversed by…

Applied Physics · Physics 2023-10-24 Jin-Cheng He , Jian Xing , Jian-Xin Shen , Dan Su , En-Ke Liu , Shou-Guo Wang , Young Sun

Although much effort has been made to explore quantum anomalous Hall effect (QAHE) in both theory and experiment, the QAHE systems with tunable Chern numbers are yet limited. Here, we theoretically propose that NiAsO$_3$ and PdSbO$_3$,…

Mesoscale and Nanoscale Physics · Physics 2022-07-27 Zeyu Li , Yulei Han , Zhenhua Qiao

Using an electric field instead of an electric current (or a magnetic field) to tailor the electronic properties of magnetic materials is promising for realizing ultralow energy-consuming memory devices because of the suppression of Joule…

Materials Science · Physics 2018-09-18 Z. X. Feng , H. Yan , Z. Q. Liu

We investigate the spin Hall magnetoresistance in thin film bilayer heterostructures of the heavy metal Pt and the antiferromagnetic insulator NiO. While rotating an external magnetic field in the easy plane of NiO, we record the…

We argue that surface magnetization of a metallic ferromagnet can be turned on and off isothermally by an applied voltage. For this, the material's electron subsystem must be close enough to the boundary between para- and ferromagnetic…

Materials Science · Physics 2008-12-09 Igor V. Ovchinnikov , Kang L. Wang

In the vicinity of their resonance frequency, piezoelectric resonators are highly sensitive to small perturbations. The present report is focussed on the magnetic field as a perturbation source. First, magneto-dielectric modulation of more…

Materials Science · Physics 2007-05-23 M. Maglione , W Zhu , Z. H. Wang

The external controllability of the magnetic properties in topological insulators would be important both for fundamental and practical interests. Here we predict the electric-field control of ferromagnetism in a thin film of insulating…

Mesoscale and Nanoscale Physics · Physics 2015-07-15 Jing Wang , Biao Lian , Shou-Cheng Zhang