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In antiferromagnetic (AFM) thin films, broken inversion symmetry or coupling to adjacent heavy metals can induce Dzyaloshinskii-Moriya (DM) interactions. Knowledge of the DM parameters is essential for understanding and designing exotic…

Mesoscale and Nanoscale Physics · Physics 2018-05-14 Alireza Qaiumzadeh , Ivan A. Ado , Rembert A. Duine , Mikhail Titov , Arne Brataas

Thin film magnetic heterostructures with competing interfacial coupling and Zeeman energy pro- vide a fertile ground to study phase transition between different equilibrium states as a function of external magnetic field and temperature. A…

Interfacing photonic and solid-state qubits within a hybrid quantum architecture offers a promising route towards large scale distributed quantum computing. Ideal candidates for coherent qubit interconversion are optically active spins…

Quantum Physics · Physics 2013-04-17 S. Probst , H. Rotzinger , S. Wünsch , P. Jung , M. Jerger , M. Siegel , A. V. Ustinov , P. A. Bushev

By comparing femtosecond laser-pulse-induced spin dynamics in the surface state of the rare earth metals Gd and Tb we show that the spin polarization of the valence states in both materials decays with significantly different time constants…

Mesoscale and Nanoscale Physics · Physics 2021-11-24 Beatrice Andres , Sang Eun Lee , Martin Weinelt

Electron-spin resonance carried out with scanning tunneling microscopes (ESR-STM) is a recently developed experimental technique that is attracting enormous interest on account of its potential to carry out single-spin on-surface resonance…

Mesoscale and Nanoscale Physics · Physics 2023-04-19 Santiago A. Rodríguez , Sergio S. Gómez , Joaquín Fernández-Rossier , Alejandro Ferrón

Materials with $sp$-magnetism demonstrate strongly nonlocal Coulomb interactions, which opens a way to probe correlations in the regimes not achievable in transition metal compounds. By the example of Sn monolayer on SiC(0001) surface, we…

Strongly Correlated Electrons · Physics 2018-11-28 Danis I. Badrtdinov , Sergey A. Nikolaev , Alexander N. Rudenko , Mikhail I. Katsnelson , Vladimir V. Mazurenko

Surface plasmons are the collective electron excitations in metallic systems and the associated electromagnetic wave usually has the transverse magnetic (TM) polarization. On the other hand, spin waves are the spin excitations perpendicular…

Mesoscale and Nanoscale Physics · Physics 2024-09-17 H. Y. Yuan , Yaroslav M. Blanter , H. Q. Lin

Using density functional theory (DFT), we calculate the magnetic short-ranged exchange forces between a magnetic tip and an adatom adsorbed on the antiferromagnetic Mn monolayer on the W(110) surface [Mn/W(110)]. These exchange forces can…

Materials Science · Physics 2024-07-17 Soumyajyoti Haldar , Stefan Heinze

We study the interactions between oscillating non-resonant rf fields and atoms with strong spin-exchange collisions in the presence of a weak dc magnetic field. We find that the atomic Larmor precession frequency shows a new functional form…

Atomic Physics · Physics 2019-05-29 Chuanpeng Hao , Zheru Qiu , Qi Sun , Yuan Zhu , Dong Sheng

Kagome magnet has been found to be a fertile ground for the search of exotic quantum states in condensed matter. Arising from the unusual geometry, the quantum interactions in the kagome lattice give rise to various quantum states,…

Strongly Correlated Electrons · Physics 2023-10-31 Xitong Xu , Jia-Xin Yin , Zhe Qu , Shuang Jia

The electronic structure of selected rare-earth atoms adsorbed on a free-standing graphene was investigated using methods beyond the conventional density functional theory (DFT+U, DFT+HIA and DFT+ED). The influence of the electron…

Strongly Correlated Electrons · Physics 2016-09-12 Agnieszka L. Kozub , Alexander B. Shick , Frantisek Maca , Jindrich Kolorenc , Alexander I. Lichtenstein

We show that an individual adatom on a magnetic surface can exhibit a noncollinear spin density. Using density functional theory we study Co and Ir adatoms on a Mn monolayer on the W(110) surface which possesses a noncollinear canted spin…

Materials Science · Physics 2018-12-12 Soumyajyoti Haldar , Stefan Heinze

High tunability of two dimensional magnetic materials (by strain, gating, heterostructuring or otherwise) provides unique conditions for studying versatile magnetic properties and controlling emergent magnetic phases. Expanding the scope of…

Computational Physics · Physics 2020-07-07 Raí M. Menezes , Clécio C. de Souza Silva , Milorad V. Milošević

When two or more atoms bind to a solid surface, the substrate can mediate an interaction between them. In this paper, we use density-functional theory to quantify the substrate-mediated pair interaction between two adatoms on a…

Materials Science · Physics 2007-05-23 Kristen A. Fichthorn , Matthias Scheffler

The electronic properties of graphene decorated with Ni, Co, Cu and Zn adatoms is studied with the density functional theory approach. Within the analysis the spin-orbit interaction is taken into account. We focus on the case when the…

Applied Physics · Physics 2019-03-01 Malgorzata Wawrzyniak-Adamczewska

The magnetic properties and electronic structure of the ground and excited states of two recently characterized endohedral metallo-fullerenes, [Gd$_2$@C$_{78}$]$^{-}$ (1) and [Gd$_2$@C$_{80}$]$^{-}$ (2), have been studied by theoretical…

Chemical Physics · Physics 2018-02-27 Akseli Mansikkamäki , Alexey A. Popov , Qingming Deng , Naoya Iwahara , Liviu F. Chibotaru

We study the RKKY interaction between two magnetic impurities located on the surface of a three-dimensional Dirac semimetal with two Dirac nodes in the band structure. By taking into account both bulk and surface contributions to the…

Mesoscale and Nanoscale Physics · Physics 2019-04-05 V. Kaladzhyan , A. A. Zyuzin , P. Simon

The rich interaction phenomena at antiferromagnet (AFM)/ ferromagnet (FM) interfaces are key ingredients in AFM spintronics, where many underlying mechanisms remain unclear. Here we report a correlation observed between interfacial…

Materials Science · Physics 2018-10-03 Xin Ma , Guoqiang Yu , Seyed A. Razavi , Liang Chang , Lei Deng , Zhaodong Chu , Congli He , Kang L. Wang , Xiaoqin Li

An extended elastic eigenvector approach for adatom interactions is applied to elastically isotropic substrates. The oscillating interactions between adatom monomers or dimers are caused by strain fields in the substrate. Expansive or…

Materials Science · Physics 2020-10-12 Wolfgang Kappus

We calculate the electronic band dispersion of graphene monolayer on a two dimensional transition metal dichalcogenide substrate (GTMD) (viz., XY2 , X = Mo, W; Y = S, Se) around K and K prime points taking into account the interplay of the…

Mesoscale and Nanoscale Physics · Physics 2016-08-11 Partha Goswami
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