典型文献
Second-Harmonic Response in Magnetic Nodal-Line Semimetal Fe3GeTe2
文献摘要：
We experimentally investigate second-harmonic transverse voltage response to ac electrical current for a magnetic nodal-line semimetal Fe3GeTe2(FGT).For zero magnetic field,the observed second-harmonic voltage behaves as a square of the longitudinal current,as it should be expected for nonlinear Hall effect.The magnetic field behavior is found to be sophisticated:while the first-harmonic response shows the known anomalous Hall hysteresis in FGT,the second-harmonic Hall voltage is characterized by the pronounced high-field hysteresis and flat(B-independent)region with curves touching at low fields.The high-field hysteresis strongly depends on the magnetic field sweep rate,so it reflects some slow relaxation process.For the lowest rates,it is also accomplished by multiple crossing points.Similar shape of the second-harmonic hysteresis is known for skyrmion spin textures in nonlinear optics.Since skyrmions have been demonstrated for FGT by direct visualization techniques,we can connect the observed high-field relaxation with deformation of the skyrmion lattice.Thus,the second-harmonic Hall voltage response can be regarded as a tool to detect spin textures in transport experiments.
文献关键词：
中图分类号：
作者姓名：
V.D.Esin;A.A.Avakyants;A.V.Timonina;N.N.Kolesnikov;E.V.Deviatov
作者机构：
Institute of Solid State Physics of the Russian Academy of Sciences,Chernogolovka,Moscow District,2 Academician Ossipyan Str.142432,Russia
文献出处：
引用格式：
[1]V.D.Esin;A.A.Avakyants;A.V.Timonina;N.N.Kolesnikov;E.V.Deviatov-.Second-Harmonic Response in Magnetic Nodal-Line Semimetal Fe3GeTe2)[J].中国物理快报（英文版）,2022(09):73-77
A类：
Semimetal,Fe3GeTe2
B类：
Second,Harmonic,Response,Magnetic,Nodal,Line,We,experimentally,investigate,second,harmonic,transverse,voltage,response,electrical,current,magnetic,nodal,semimetal,FGT,For,zero,observed,behaves,as,square,longitudinal,should,expected,nonlinear,Hall,effect,behavior,found,sophisticated,while,first,shows,known,anomalous,hysteresis,characterized,by,pronounced,high,flat,independent,region,curves,touching,fields,strongly,depends,sweep,reflects,some,slow,relaxation,process,lowest,rates,also,accomplished,multiple,crossing,points,Similar,shape,spin,textures,optics,Since,skyrmions,been,demonstrated,direct,visualization,techniques,can,connect,deformation,lattice,Thus,regarded,tool,detect,transport,experiments
AB值：
0.522275
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