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Related papers: All-optical magnetization control in CrI$_3$ monol…

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Intrinsic magnetoelectric coupling describes the interaction between magnetic and electric polarization through an inherent microscopic mechanism in a single phase material. This phenomenon has the potential to control the magnetic state of…

The recent discovery of 2D magnets has revealed various intriguing phenomena due to the coupling between spin and other degree of freedoms (such as helical photoluminescence, nonreciprocal SHG). Previous research on the spin-phonon coupling…

The monolayer halides CrX$_3$ (X=Cl, Br, I) attract significant attention for realizing 2D magnets with genuine long-range order (LRO), challenging the Mermin-Wagner theorem. Here, we show that monolayer CrCl$_3$ has the unique benefit of…

Strongly Correlated Electrons · Physics 2021-07-19 Maxime Dupont , Yaroslav O. Kvashnin , Mahroo Shiranzaei , Jonas Fransson , Nicolas Laflorencie , Adrian Kantian

Atomically thin magnets are the key element to build up spintronics based on two-dimensional materials. The surface nature of two-dimensional ferromagnet opens up opportunities to improve the device performance efficiently. Here, we report…

Mesoscale and Nanoscale Physics · Physics 2019-05-22 Zhaowei Zhang , Jingzhi Shang , Chongyun Jiang , Abdullah Rasmita , Weibo Gao , Ting Yu

Intrinsic, two-dimensional ferromagnetic semiconductors are an important class of materials for overcoming the limitations of dilute magnetic semiconductors for spintronics applications. CrSiTe$_3$ is a particularly interesting member of…

Strongly Correlated Electrons · Physics 2015-10-06 T. J. Williams , A. A. Aczel , M. D. Lumsden , S. E. Nagler , M. B. Stone , J. -Q. Yan , D. Mandrus

Since the first experimental observation of all-optical switching phenomena, intensive research has been focused on finding suitable magnetic systems that can be integrated as storage elements within spintronic devices and whose…

The recent discovery of ferromagnetism in 2D van der Waals (vdw) crystals has generated widespread interest, owing to their potential for fundamental and applied research. Advancing the understanding and applications of vdw magnets requires…

Thermally induced spin control is one of the main directions for future spin devices. In this study, we synthesized single-phase polycrystalline ErFe1-xCrxO3 and combined the magnetization curves and M\"ossbauer spectra to determine the…

Materials Science · Physics 2022-07-11 Jiyu Shen , Jiajun Mo , Zeyi Lu , Zhongjin Wu , Chenying Gong , Kaiyang Gao , Pinglu Zheng , Min Liu , Yanfang Xia

A recent theoretical study reported large effects of perpendicular electric fields on the atomic structure of a monolayer CrI3, which could be related to the microscopic origin of the technologically promising and experimentally observed…

Materials Science · Physics 2019-07-24 S. Ghosh , N. Stojic , N. Binggeli

Introducing noncollinear magnetization into a monolayer CrI$_3$ is proposed to be an effective approach to modulate the local electronic properties of the two-dimensional (2D) magnetic material. Using first-principles calculation, we…

Materials Science · Physics 2019-05-22 Lingling Ren , Qian Liu , Pengxiang Xu , Zhicheng Zhong , Li Yang , Zhe Yuan , Ke Xia

We conduct a comprehensive study of three different magnetic semiconductors, CrI$_3$, CrBr$_3$, and CrCl$_3$, by incorporating both few- and bi-layer samples in van der Waals tunnel junctions. We find that the interlayer magnetic ordering,…

We have employed one of the well-known many-body techniques, density functional theory plus dynamical mean-field theory (DFT + DMFT), to investigate the electronic structure of ferromagnetic monolayer CrI3 as a function of temperature and…

Materials Science · Physics 2022-04-18 Chang-Jong Kang , Jeonghoon Hong , Jeongwoo Kim

Ferromagnet-ferroelectric-metal superlattices are proposed to realize the large room-temperature magnetoelectric effect. Spin dependent electron screening is the fundamental mechanism at the microscopic level. We also predict an electric…

Mesoscale and Nanoscale Physics · Physics 2009-12-16 Tianyi Cai , Sheng Ju , Jaekwang Lee , Na Sai , Alexander A. Demkov , Qian Niu , Zhenya Li , Junren Shi , Enge Wang

The discovery of two-dimensional (2D) systems hosting intrinsic long-range magnetic order represents a seminal addition to the rich physical landscape of van der Waals (vdW) materials. CrI3 has emerged as perhaps the most salient example,…

Recently intrinsic ferromagnetism in two-dimensional(2D) van der Waals materials was discovered [1, 2, 3]. A monolayer of Chromiun triiodide(CrI3) is ferromagnetic while a bilayer structure was reported to be anti-ferro magnetic, moreover…

Materials Science · Physics 2018-11-30 E. Suarez Morell , Andrea León , R. Hiroki Miwa , P. Vargas

Interfacing a ferromagnet with a polarized ferroelectric gate generates a non-uniform, interfacial spin density coupled to the ferroelectric polarization allowing so for an electric field control of effective transversal field to…

Strongly Correlated Electrons · Physics 2017-09-06 Yaojin Li , Min Chen , Jamal Berakdar , Chenglong Jia

A microscopic model of non-reciprocal optical effects in antiferromagnets is developed by considering the case of Cr_2O_3 where such effects have been observed. These effects are due to a direct coupling between light and the…

Condensed Matter · Physics 2009-10-28 V. N. Muthukumar , Roser Valenti , Claudius Gros

Antiferromagnetic materials feature intrinsic ultrafast spin dynamics, making them ideal candidates for future magnonic devices operating at THz frequencies. A major focus of current research is the investigation of optical methods for the…

Light fields at THz and mid-infrared frequencies allow for the direct excitation of collective modes in condensed matter, which can be driven to large amplitudes. For example, excitation of the crystal lattice, has been shown to stimulate…

We demonstrate deterministic control of the nearest and next-nearest neighbor coupling in the unit cell of a square lattice of microcavity exciton-polariton condensates. We tune the coupling in a continuous and reversible manner by…

Mesoscale and Nanoscale Physics · Physics 2020-05-27 Sergey Alyatkin , Julian D. Töpfer , Alexis Askitopoulos , Helgi Sigurdsson , Pavlos G. Lagoudakis