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1、SupplementaryInformationElectrochemicalTuning-InducedMagneticTransitionsinGeometricallyFrustratedSpinelLixMn2O4(0.07≤x≤0.93)QiChen,1ZhongyueZhang,2andKunioAwaga1,31.DepartmentofChemistry,NagoyaUniversity,Furo-cho,Chikusa-ku,Nagoya464-8602,Japan2.ResearchCent
2、erforMaterialsScience,NagoyaUniversity,Furo-cho,Chikusa-ku,Nagoya464-8602,Japan3.IntegratedResearchConsortiumonChemicalSciences,Furo-cho,Chikusa-ku,Nagoya464-8602,JapanZZ:zhang.zhongyue@i.mbox.nagoya-u.ac.jpKA:awaga@mbox.chem.nagoya-u.ac.jpTableofcontentsS1.
3、Magneticsusceptibilityforas-preparedLiMn2O4S2.ElectrochemicalperformanceforLi-LiMn2O4batteryS3.Rietveld'srefinementofXRDpatternsS4.InductivelycoupledplasmaopticalemissionspectroscopyforLixMn2O4S5.DCsusceptibilityforx=0.93and0.07S6.ACsusceptibilityforLixMn2O4
4、(0.07≤x≤0.93)S7.Cole-ColeanalysisforLi0.50Mn2O4S8.DMinteractionsintheLixMn2O4systemS9.MagneticpropertiesforLi0.50Mn2O4S1S10.SpecificheatforLixMn2O4anditscalibrationS11.ReferenceS2S1.Magneticsusceptibilityforas-preparedLiMn2O4(a)(b)(c)(d)FigureS1.(a)Zero-fiel
5、d-cooled(ZFC)andfield-cooled(FC)magneticsusceptibilityand(b)inversesusceptibilityofas-preparedLiMn2O4.Theinsetin(b)isthederivativesofinversesusceptibility,andthearrowsin(b)pointouttheVerweyphasetransitiontemperatureof280K.(c)Realpartand(d)imaginarypartofACsu
6、sceptibilityofas-preparedLiMn2O4atfrequencyof2,19,199,997Hz.NotethattheDC/ACsusceptibilityofas-preparedLiMn2O4isverydifferentfromthatofelectrochemicalinducedLi0.93Mn2O4(x=1).Here,ACsusceptibilityonlyshowsweakfrequencydependencebelow10K.Thisisprobablyduetoade
7、creaseintheaveragegrainsizeS3aftertheelectrochemicalprocessinx=0.93,whichwouldgeneratemoresymmetry-brokenstructuraldefectsandresultaneffectiveferromagnetism1.S4S2.ElectrochemicalperformancesforLi-LiMn2O4battery(a)(b)(c)FigureS2.(a)Differentialchronopotentiom
8、etriccurve(dQ/dV),(b)cyclicvoltammetry(CV)curveand(c)cyclicperformanceforLi-LiMn2O4battery.TheCVanalysiswasperformedinthevoltagerangeof3.6-4.5V(vs.Li+/Li)atascanrateof0.5mV/sbyatwo-electrodesmod
