Compressibility of Nickel Nanoparticle Chain  

作　　者：李晓东 唐玲云 李延春 刘景 

机构地区：[1]Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049

出　　处：《Chinese Physics Letters》2007年第6期1671-1673,共3页中国物理快报（英文版）

摘　　要：We perform the high-pressure energy dispersive x-ray diffraction experiments of nickel nanoparticle chain using a synchrotron source under quasi-hydrostatic compression up to 44.7GPa. There is no phase transition over the pressure range. The bulk modulus Ko, the first pressure derivative of bulk modulus K＇0 and the volume Vo are calculated from the pressure-volume data using the Birch-Murnaghan equation of state. A decrease of compressibility is observed, in agreement with the Hall-Perch effect.We perform the high-pressure energy dispersive x-ray diffraction experiments of nickel nanoparticle chain using a synchrotron source under quasi-hydrostatic compression up to 44.7GPa. There is no phase transition over the pressure range. The bulk modulus Ko, the first pressure derivative of bulk modulus K＇0 and the volume Vo are calculated from the pressure-volume data using the Birch-Murnaghan equation of state. A decrease of compressibility is observed, in agreement with the Hall-Perch effect.

关 键 词：BULK NANOCRYSTALLINE NICKEL X-RAY-DIFFRACTION MAGNETIC-PROPERTIES CDSENANOCRYSTALS SIZE DEPENDENCE HIGH-PRESSURE TRANSFORMATION TRANSITION WURTZITE 

分 类 号：O57[理学—粒子物理与原子核物理]