YFe_(10)Si_2晶体结构和磁结构中子衍射研究

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详细信息

Neutron Diffraction Study on Crystal and Magnetic Structure of YFe_(10)Si_(2)

摘要: 在室温下利用中子粉末衍射方法研究了名义成分为YFe10Si2金属间化合物的晶体结构和磁结构。采用Rietveld方法对衍射曲线进行拟合,结果表明样品由ThMn12型YFe10.2Si1.8和α Fe(Si)两相组成。在YFe10.2Si1.8中大部分Si原子占据8f晶位,其余进入8j晶位,Si原子不进入8i晶位。
- 中子衍射 ,
- 金属间化合物 ,
- 晶体结构 ,
- 磁结构
Abstract: The crystal and magnetic structure of intermetallic compound with the nominal composition YFe_(10)Si_(2) was studied by neutron powder diffraction at room temperature. The data were analyzed by the Rietveld method. The results show that the sample consists of ThMn_(12)-type YFe_(10.2)Si_(1.8 )and α-Fe(Si). In the YFe_(10.2)Si_(1.8) phase, most of Si atoms occupy the 8f sites, the rest of Si atoms enter the 8j sites and there are no Si (atoms) in the 8i sites.
- neutron diffraction ,
- intermetallic compound ,
- crystal structure ,
- magnetic structure

[1]	YangYing chang,SunHong,KongLin shu,etal.NeutronDiffractionStudyofY(Ti,Fe)12[J]. JApplPhys,1988,64(10):5968～5970.
[2]	HelmholdtRB,VleggaarJJM,BuschowKHJ.NoteontheCrystallographicandMagneticStructureofYFe10V2[J]. JournaloftheLess CommonMetals,1988,138:L11～L14.
[3]	MaoWeihua,YangJinbo,ChengBenpei,etal.StructureandMagneticPropertiesofaSolutionofCarboninYFe10.5Mo1.5PreparedbyArcMelting[J]. JPhys:CondensMatter,1998,10:4379～4385.
[4]	MaoW,JiC,ChangH,etal.StudyontheMagneticMomentsofPrFe10.5V1.5andPrFe10.5V1.5NxCompounds[J]. SolidStateCommunications,1999,111:165～169.
[5]	HuZ,YelonWB.NeutronDiffractionandMagneticStudiesofRFe12-xTxCy(R=Y,Er;T=V,Ti,Mo)Alloys[J]. JApplPhys,1996,79(8):5522～5524.
[6]	BuschowKHJ.StructureandPropertiesofSomeNovelTernaryFe richRare earthIntermetallics[J]. JApplPhys,1988,63(8):3130～3135.