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Two-dimensional (2D) ferromagnetic (FM) semiconductors with high Curie temperature have long been pursued for electronic and spintronic applications. Here we provide a general strategy to achieve robust FM state in bilayer CrI3 of the…

Materials Science · Physics 2020-09-23 Nanshu Liu , Si Zhou , Jijun Zhao

Using polarization-resolved Raman spectroscopy, we investigate layer number, temperature, and magnetic field dependence of Raman spectra in one- to four-layer $\mathrm{CrI_{3}}$. Layer-number-dependent Raman spectra show that in the…

Atomically thin films of layered chromium triiodide (CrI$_3$) have recently been regarded as suitable candidates to a wide spectrum of technologically relevant applications, mainly owing to the opportunity they offer to achieve a reversible…

Strongly Correlated Electrons · Physics 2020-05-01 Michele Pizzochero , Oleg V. Yazyev

The bulk Rashba semiconductors BiTeX (X=I, Cl and Br) with intrinsically enhanced Rashba spin-orbit coupling provide a new platform for investigation of spintronic and magnetic phenomena in materials. We theoretically investigate the…

Mesoscale and Nanoscale Physics · Physics 2019-07-17 Mahmoud M. Asmar , Wang-Kong Tse

Igniting interface magnetic ordering of magnetic topological insulators by building a van der Waals heterostructure can help to reveal novel quantum states and design functional devices. Here, we observe an interesting exchange bias effect,…

The moir\'e engineering of two-dimensional magnets opens unprecedented opportunities to design novel magnetic states with promises for spintronic device applications. The possibility of stabilizing skyrmions in these materials without…

Materials Science · Physics 2022-08-03 Doried Ghader , Bilal Jabakhanji , Alessandro Stroppa

Motivated by the potential of atomically-thin magnets towards tunable high-frequency magnonics, we detail the spin-wave dispersion of bilayer CrI$_3$. We demonstrate that the magnonic behavior of the bilayer strongly depends on its stacking…

Materials Science · Physics 2023-03-01 M. Soenen , C. Bacaksiz , R. M. Menezes , M. V. Milosevic

The layered perovskites $R$Cr(BO$_3$)$_2$ ($R$ = Y and Ho) with magnetic triangular lattices were studied by performing ac/dc susceptibility, specific heat, elastic and inelastic neutron scattering, and dielectric constant measurements. The…

Materials Science · Physics 2017-09-13 R. Sinclair , H. D. Zhou , M. Lee , E. S. Choi , G. Li , T. Hong , S. Calder

Using density functional theory, we investigate the interplay between the stacking order and sequence of bilayers composed of an Fe and a Rh layer on the Re(0001) and their magnetic properties. We find that fcc/ffc stacked bilayers are…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 Souvik Paul , Stefan Heinze

It has been predicted theoretically and indirectly confirmed experimentally that single-layer CrX$_3$ (X=Cl, Br, I) might be the prototypes of topological magnetic insulators (TMI). In this work, by using first-principles calculations…

Materials Science · Physics 2020-10-07 Y. O. Kvashnin , A. Bergman , A. I. Lichtenstein , M. I. Katsnelson

Single layers of transition-metal thiophosphates (2D-TMPS$_{3}$) van der Waals magnets are an ideal platform for studying antiferromagnetic interactions in two dimensions. However, the magnetic coupling mechanism between two or more…

Materials Science · Physics 2024-10-18 Andrea León , Beatriz Costa , Thomas Heine , Thomas Brumme

The spin-orbital entangled states are of great interest as they hold exotic phases and intriguing properties. Here we use first-principles calculations to investigate the electronic and magnetic properties of RuI$_{3}$ and RuCl$_{3}$ in…

Strongly Correlated Electrons · Physics 2023-04-21 Lu Liu , Ke Yang , Guangyu Wang , Di Lu , Yaozhenghang Ma , Hua Wu

Charge transfer is of particular importance in manipulating the interface physics in transition-metal oxide heterostructures. In this work, we have fabricated epitaxial bilayers composed of polar 3d LaMnO3 and nonpolar 5d SrIrO3. Systematic…

Mesoscale and Nanoscale Physics · Physics 2019-04-12 Tao Yu , Bei Deng , Liang Zhou , Pingbo Chen , Qiying Liu , Xingkun Ning , Jingtian Zhou , Zhiping Bian , Zhenlin Luo , Chunyin Qiu , Xingqing Shi , Hongtao He

Recently, three different magnetic states were observed experimentally in trilayer CrI3 under pressure,including ferromagnetic (FM)-upupup, FM-downupdown and FM-upupdown. To reveal the nature of the observed three magnetic states, we…

Materials Science · Physics 2021-12-08 Zhen Zhang , Jing-Yang You , Bo Gu , Gang Su

Two-dimensional (2D) materials are being explored as a novel multiferroic platform. One of the most studied magnetoelectric multiferroic 2D materials are antiferromagnetically-coupled (AFM) CrI$_3$ bilayers. Neglecting magnetism, those…

Mesoscale and Nanoscale Physics · Physics 2023-05-16 Shiva P. Poudel , Juan M. Marmolejo-Tejada , Joseph E. Roll , Martín A. Mosquera , Salvador Barraza-Lopez

The newly discovered 2D magnetic materials provide new opportunities for basic physics and device applications. However, their low Curie temperature (TC) is a common weakness. In this paper, by combining magnetic Hamiltonian, Wannier…

Materials Science · Physics 2020-11-06 Hongxing Li , Zi-Peng Cheng , Bin-Guang He , Wei-Bing Zhang

The van der Waals layered semiconductor CrSBr, which exhibits A-type antiferromagnetism and a relatively high N\'{e}el temperature, has been successfully exfoliated into atomically thin sheets. In this study, we investigate the structural,…

Materials Science · Physics 2025-02-07 Huicong Li , Yali Yang , Zhonghao Xia , Yateng Wang , Jiacheng Wei , Jiangang He , Rongming Wang

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,…

Stacking-dependent magnetism in two-dimensional van der Waals materials offers an effective route for controlling magnetic order without chemical modification. Here, we present a combined first-principles and finite-temperature study of…

Materials Science · Physics 2026-05-19 Soumyajit Sarkar , Soham Chandra

We present a theoretical study of a model heterostructure for a Mott-insulator sandwiched between two band insulators, such as SrTiO3/LaTiO3. Particular emphasis is given on the interplay between magnetism and inhomogeneous charge…

Strongly Correlated Electrons · Physics 2013-02-19 Suguru Ueda , Norio Kawakami , Manfred Sigrist