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Efficient control of a magnetization without an application of the external magnetic fields is the ultimate goal of spintronics. We demonstrate, that in monolayers of $\text{CrI}_3$, magnetization can be switched all optically, by…

Mesoscale and Nanoscale Physics · Physics 2021-08-04 A. Kudlis , I. V. Iorsh , I. A. Shelykh

Complex oxide thin films and heterostructures offer a wide range of properties originating from the intrinsic coupling between lattice strain and magnetic/electronic ordering. This article reviews experimental, phenomenological, and…

Strongly Correlated Electrons · Physics 2023-10-20 Surendra Singh

Excitons are fundamental excitations that govern the optical properties of semiconductors. Interacting excitons can lead to various emergent phases of matter and large nonlinear optical responses. In most semiconductors, excitons interact…

The strongly correlated material La0.7Sr0.3MnO3 (LSMO) exhibits metal-to-insulator and magnetic transition near room temperature. Although the physical properties of LSMO can be manipulated by strain, chemical doping, temperature, or…

The linear absorption spectrum of excitons in TMDC monolayers under the influence of an in-plane magnetic field is theoretically studied. We demonstrate that in-plane magnetic fields induce a hybridization between spin-bright and spin-dark…

In the last decade atomically thin 2D materials have emerged as a perfect platform for studying and tuning light-matter interaction and electronic properties in nanostructures. The optoelectronic properties in layered materials such as…

Mesoscale and Nanoscale Physics · Physics 2024-10-07 Roberto Rosati , Ioannis Paradisanos , Ermin Malic , Bernhard Urbaszek

Correlated flat bands and altermagnetism are two important directions in quantum materials, centred respectively on interaction-dominated phases and symmetry-enforced spin-textured states, yet both derive from lattice symmetry and orbital…

The potential for manipulating characteristics of skyrmions in a CrI$_3$ monolayer using circularly polarised light is explored. The effective skyrmion-light interaction is mediated by bright excitons whose magnetization is selectively…

Mesoscale and Nanoscale Physics · Physics 2024-03-05 M. Kazemi , A. Kudlis , P. F. Bessarab , I. A. Shelykh

Excitons are vital in the photophysics of materials, especially in low-dimensional systems. The conceptual and quantitative understanding of excitonic effects in nonlinear optical (NLO) processes is more challenging compared to linear ones.…

Materials Science · Physics 2026-02-26 Jiawei Ruan , Y. -H. Chan , Steven G. Louie

Unidirectional in-plane structural anisotropy in Rhenium-based transition metal dichalcogenides (TMDs) introduces a new class of 2-D materials, exhibiting anisotropic optical properties. In this work, we perform temperature dependent,…

Mesoscale and Nanoscale Physics · Physics 2020-10-21 Avijit Dhara , Devarshi Chakrabarty , Pritam Das , Aswini K. Pattanayak , Shreya Paul , Shreyashi Mukherjee , Sajal Dhara

Controlling magnetic order via external fields or heterostructures enables precise manipulation and tracking of spin and exciton information, facilitating the development of high-performance optical spin valves. However, the weak…

Materials Science · Physics 2024-09-30 Jia Shi , Dan Wang , Nai Jiang , Ziqian Xin , Houzhi Zheng , Chao Shen , Xinping Zhang , Xinfeng Liu

Interfaces between twisted 2D materials host a wealth of physical phenomena originating from the long-scale periodicity associated with the resulting moire structure. Besides twisting, an alternative route to create structures with…

A monolayer of CrI3 has an amazing ferromagnetic ground-state. In this work, we calculate band structures and magnetic moments of tensile-strained and bent zigzag CrI3 nanoribbons with density functional theory. The edge iodine atoms form…

Materials Science · Physics 2022-11-02 Hong Tang , Santosh Neupane , Qimin Yan , Adrienn Ruzsinszky

Layered van der Waals antiferromagnet CrSBr supports strong light--matter coupling and formation of magnetically tunable exciton-polaritons, yet active magnetic control over polariton propagation direction has remained elusive. Here, we…

Magneto-optical effects in structured anisotropic media have attracted significant attention due to their potential in tunable photonic devices. In particular, dichroic cholesteric liquid crystals (i.e., cholesterics in which the real parts…

The anisotropic optical response of the layered, nodal-line semimetal ZrSiS at ambient and high pressure is investigated by frequency-dependent reflectivity measurements for the polarization along and perpendicular to the layers. The highly…

We have investigated the electronic properties of epitaxial orthorhombic SrIrO3 thin-films under compressive strain. The metastable, orthorhombic SrIrO3 thin-films are synthesized on various substrates using an epi-stabilization technique.…

Strongly Correlated Electrons · Physics 2014-11-18 J. H. Gruenewald , J. Nichols , J. Terzic , G. Cao , J. W. Brill , S. S. A. Seo

A new class of optical quasiparticles called magnetic excitons recently emerged in magnetic van der Waals materials. Akin to the highly effective strategies developed for electrons, the strong interactions of these excitons with the spin…

Hexagonal boron nitride is an indirect band gap material with a strong luminescence in the ultraviolet. This luminescence originates from bound excitons recombination assisted by different phonon modes. The coupling between excitons and…

Materials Science · Physics 2022-05-05 Pierre Lechifflart , Fulvio Paleari , Claudio Attaccalite

Strong Coulomb interaction in 2D materials provides unprecedented opportunities for studying many key issues of condensed matter physics, such as co-existence and mutual conversions of excitonic complexes, fundamental optical processes…

Mesoscale and Nanoscale Physics · Physics 2018-12-12 Zhen Wang , Hao Sun , Qiyao Zhang , Jiabin Feng , Jianxing Zhang , Yongzhuo Li , Cun-Zheng Ning
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