Dzyaloshinskii-Moriya interactions,Néel skyrmions and V_(4) magnetic clusters in multiferroic lacunar spinel GaV_(4)S_(8)

作     者：Vladislav Borisov Nastaran Salehi Manuel Pereiro Anna Delin Olle Eriksson 

作者机构：Department of Physics and AstronomyUppsala UniversityBox 516SE-75120 UppsalaSweden Department of Applied PhysicsSchool of Engineering SciencesKTH Royal Institute of TechnologyAlbaNova University CenterSE-10691 StockholmSweden SeRC(Swedish e-Science Research Center)KTH Royal Institute of TechnologySE-10044 StockholmSweden Wallenberg Initiative Materials Science for Sustainability(WISE)KTH Royal Institute of TechnologySE-10044 StockholmSweden Wallenberg Initiative Materials Science for SustainabilityUppsala University75121 UppsalaSweden 

出 版 物：《npj Computational Materials》 (计算材料学(英文))

年 卷 期：2024年第10卷第1期

页      面：2691-2700页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：supported by the Knut and Alice Wallenberg Foundation through grant numbers 2018.0060,2021.0246,and 2022.0108,and Göran Gustafsson Foundation(recipient of the‘small prize’:Vladislav Borisov) Olle Eriksson also acknowledges support by the Swedish Research Council(VR),the Foundation for Strategic Research(SSF),the Swedish Energy Agency(Energimyndigheten),the European Research Council(854843-FASTCORR),eSSENCE and STandUP Anna Delin acknowledges financial support from Vetenskapsrådet(VR)(grant numbers VR 2016-05980 and VR 2019-05304) O.E.and A.D.also acknowledge support from the Wallenberg Initiative Materials Science for Sustainability(WISE)funded by the Knut and Alice Wallenberg Foundation(KAW) 

主　　题：parameters magnetic interactions 

摘      要：Using ab initio density functional theory with static mean-field correlations,we calculate the Heisenberg and Dzyaloshinskii-Moriya interactions(DMI)for an atomistic spin Hamiltonian for the lacunar spinel,GaV_(4)S_(8).The parameters describing these interactions are used in atomistic spin dynamics and micromagnetic *** magnetic properties of the lacunar spinel GaV_(4)S_(8),a material well-known from experiment to hostmagnetic skyrmions of Néel character,are simulated with these ab initio calculated parameters.