TbMn6Sn6合金自旋重取向的^57Fe与^119Sn穆斯堡尔谱研究  

(57)~Fe and (119)~Sn Mssbauer evidence of temperature-induced spin reorientation in ternary alloy TbMn_6Sn_6

作　　者：厉淑贞[1] 蒋中英[2] 黄彦君[2] 夏元复[2] 

机构地区：[1]江苏科技大学数理学院,镇江212003 [2]南京大学物理系,南京210093

出　　处：《核技术》2008年第3期197-201,共5页Nuclear Techniques

基　　金：国家自然科学基金(批准号:10575051、10647004)资助

摘　　要：采用电弧熔炼法制备了三元稀土过渡族金属合金TbMn6Sn6。粉末X射线衍射(XRD)测量表明该合金为HfFe6Ge6型晶体结构。对该合金在20～390K温度范围内测量了119Sn与57Fe穆斯堡尔谱,观察到了该合金在温度约为310K时的自旋重取向行为。The rare-earth-transition-metal ternary alloy of TbMn6Sn6 was fabricated by conventional arc-melting method. The alloy was examined by X-ray diffraction and the refinement showed its HfFe6Ge6-type crystal structure. The magnetic structures were investigated by combining the ^119Sn and ^57Fe Mrssbauer spectra at different temperatures from 20 K to 390 K, and a 90° spin transition behavior was observed at about 310 K.

关 键 词：TbMn6Sn6 穆斯堡尔谱 自旋重取向 

分 类 号：O481.41[理学—固体物理]