Magnetic properties of single grain r-mg-cd primitive icosahedral quasicrystals (R = Y, Gd, Tb or Dy)
Magnetic properties of single grain r-mg-cd primitive icosahedral quasicrystals (R = Y, Gd, Tb or Dy)
复制标题
DOI：
10.1080/14786430310001641939
复制
发表时间：
2004-04-01
影响因子：
1.6
通讯作者：
Kramer, MJ
中科院分区：
文献类型：
--
作者：
Sebastian, SE;Huie, T;Kramer, MJ
本文报道了R-Mg- Cd（R = Y，Gd，Tb或Dy）二十面体准晶单晶的生长和表征。从热力学性质，它被证实，该系统是一个自旋玻璃表现出这种系统的特征自旋冻结转变。没有证据表明两个不同的冻结过渡以前观察到的多晶样品。体磁性质和晶体电场对自旋冻结温度的影响与面心二十面体准晶R-Mg- Zn非常相似。
The growth and characterization of single grains of the primitive icosahedral quasicrystal R - Mg - Cd ( R = Y, Gd, Tb or Dy) are described. From the thermodynamic properties, it is confirmed that the system is a spin glass exhibiting the characteristic spin-freezing transition of such systems. There is no evidence for two distinct freezing transitions previously observed for polygrain samples. The bulk magnetic properties and the effect of crystalline electric fields on the spin-freezing temperature are found to be very similar to those of the face-centred icosahedral quasicrystal R - Mg - Zn.