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Two-dimensional (2D) ferromagnetic materials are considered as promising candidates for the future generations of spintronic devices. Yet, 2D materials with intrinsic ferromagnetism are scarce. High-throughput first-principles simulations…

Materials Science · Physics 2022-11-15 R. Meng , L. M. C. Pereira , J. P. Locquet , V. V. Afanas'ev , G. Pourtois , M. Houssa

We design a multiferroic metal that combines seemingly incompatible ferromagnetism, ferroelectricity, and metallicity by hole doping a two-dimensional (2D) ferroelectric with high density of states near the Fermi level. The strong…

Materials Science · Physics 2021-08-12 Xu Duan , Jiawei Huang , Bin Xu , Shi Liu

Two-dimensional (2D) high-temperature ferromagnetic materials are important for spintronic application. Fortunately, a highly-air-stable PdSe$_2$ monolayer semiconductor has been made through exfoliation from the layered bulk material. It…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 Shi-Hao Zhang , Bang-Gui Liu

It is essential to explore two-dimensional (2D) material with magnetic ordering in new generation spintronic devices. Particularly, the seeking of room-temperature 2D ferromagnetic (FM) materials is a hot topic of current research. Here, we…

Mesoscale and Nanoscale Physics · Physics 2018-09-07 Chang-Wei Wu , Jun-Han Huang , Dao-Xin Yao

We theoretically investigate the possibility of establishing ferromagnetism in the topological insulator Bi2Se3 via magnetic doping of 3d transition metal elements. The formation energies, charge states, band structures, and magnetic…

Materials Science · Physics 2013-01-08 Jian-Min Zhang , Wenguang Zhu , Ying Zhang , Di Xiao , Yugui Yao

Next-generation spintronic devices will benefit from low-dimensionality, ferromagnetism, and half-metallicity, possibly controlled by electric fields. We find these technologically-appealing features to be combined with an exotic…

Materials Science · Physics 2021-02-26 Hrishit Banerjee , Paolo Barone , Silvia Picozzi

Exploring two-dimensional (2D) materials with magnetic ordering is a focus of current research. It remains a challenge to achieve tunable magnetism in a material of one-atom-thickness without introducing extrinsic magnetic atoms or defects.…

Materials Science · Physics 2017-08-29 Sai Gong , Wenhui Wan , Shan Guan , Bo Tai , Chang Liu , Botao Fu , Shengyuan A. Yang , Yugui Yao

The realization of multiferroicity in 2D nanomaterials is crucially important for designing advanced nanoelectronic devices such as non-volatile multistate data storage. In this work, the coexistence of ferromagnetism and ferroelectricity…

Materials Science · Physics 2019-11-12 Yanyu Liu , Wei Zhou , Gang Tang , Chao Yang , Xueyun Wang , Jiawang Hong

Here, we study the magnetism of the distorted 1T-TcX2 (X=S,Se) based on first-principles calculation. The magnetism originates from the hole doping due to the density of states near the valence band edge having van Hove singularity feature.…

Materials Science · Physics 2019-01-29 Chang-Wei Wu , Dao-Xin Yao

Magnetoelectric effect is a fundamental physics phenomenon that synergizes electric and magnetic degrees of freedom to generate distinct material responses like electrically tuned magnetism, which serves as a key foundation of the emerging…

Two-dimensional ferroelectrics are important quantum materials which have found novel application in nonvolatile memories, however, the effects of reversible polarization on chemical reactions and interaction with environments are rarely…

Materials Science · Physics 2020-03-17 Xiao Tang , Jing Shang , Yuantong Gu , Aijun Du , Liangzhi Kou

The realization of intertwined ferroelasticity and ferromagnetism in two-dimensional (2D) lattices is of great interest for broad nanoscale applications, but still remains a remarkable challenge. Here, we propose an alternative approach to…

Materials Science · Physics 2021-10-13 Yan Liang , Xingshuai Lv , Thomas Frauenheim

Electronic structure calculations are used to examine the magnetic properties of Fe$_2$P-based alloys and the mechanisms through which the Curie temperature and magnetocrystalline anisotropy can be optimized for specific applications. It is…

Materials Science · Physics 2017-10-18 I. A. Zhuravlev , V. P. Antropov , A. Vishina , M. van Schilfgaarde , K. D. Belashchenko

The magnetoelectric effect and skyrmions are two fundamental phenomena in the field of condensed-matter physics. Here, using first-principles calculations and Monte-Carlo simulations, we propose that strong magnetoelectric coupling can be…

Materials Science · Physics 2022-06-01 Kaiying Dou , Wenhui Du , Ying Dai , Baibiao Huang , Yandong Ma

In flat-band materials, the strong Coulomb interaction between electrons can lead to exotic physical phenomena. Recently, $\alpha$-In$_2$Se$_3$ thin films were found to possess ferroelectricity and flat bands. In this work, using…

Materials Science · Physics 2024-02-16 Zhiqiang Tian , Jin-Yang Li , Tao Ouyang , Chao-Fei Liu , Ziran Liu , Si Li , Anlian Pan , Mingxing Chen

Two-dimensional multiferroic materials are highly sought after due to their huge potential for applications in nanoelectronic and spintronic devices. Here, we predict, based on first-principle calculations, a single phase {\it triferroic}…

Materials Science · Physics 2022-11-07 Srishti Bhardwaj , T. Maitra

The atomic thickness of two-dimensional (2D) materials provides a unique opportunity to control material properties and engineer new functionalities by electrostatic doping. Electrostatic doping has been demonstrated to tune the electrical…

Materials Science · Physics 2018-08-01 Shengwei Jiang , Lizhong Li , Zefang Wang , Kin Fai Mak , Jie Shan

We report the results of our investigation of magnetic, thermodynamic and dielectric properties of Ca substituted half-doped orthochromite, Dy0.6Ca0.4Fe0.5Cr0.5O3. Magnetic susceptibility and heat capacity data bring out that this compound…

Materials Science · Physics 2017-03-29 Mohit K Sharma , Tathamay Basu , K Mukherjee , E V Sampathkumaran

Electrical tuning of magnetism is crucial for developing fast, compact, ultra-low power electronic devices. Multiferroics offer significant potential due to their ability to control magnetic via an electric field through magnetoelectric…

Mesoscale and Nanoscale Physics · Physics 2024-09-16 Yingying Wu , Zdenek Sofer , Wei Wang

We show that the $d^{0}$ ferromagnetism with high Curie temperature ($T_c$) can be achieved in the electron doped hydrogenated epitaxial graphene on some certain SiC substrates through first-principles calculations. The pristine systems are…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Pengcheng Chen , Yuanchang Li , Wenhui Duan
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