Derivation of Inter-Atomic Force Constants of Cu2O from Diffuse Neutron Scattering Measurement

Atom Indonesia

S.A. Danilkin¹  E. Kartini²  H. Takahashi³  T. Makhsun⁴  R. Sakai⁵  T. Sakuma⁵  N. Igawa⁶ 

[1] Bragg Institute, Australian Nuclear Science and Technology Organization, Kirrawee 2232, AustraliaC ;Center for Technology of Nuclear Industry Materials, National Nuclear Energy Agency, Puspiptek Area, Serpong 15314, Indonesia;Institute of Applied Beam Science, Ibaraki University, Hitachi 316-8511, Japan;Institute of Applied Beam Science, Ibaraki University, Mito 310-8512, JapanandCenter for Technology of Radiation Safety and Metrology, National Nuclear Energy Agency, Jakarta 12070, Indonesia;Institute of Applied Beam Science, Ibaraki University, Mito 310-8512, Japan;Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai 319-1195, Japan;

关键词: Diffuse scattering;    Neutron diffraction;    Correlation effect;    Thermal vibration;    Force constants;   

DOI  :  

来源: DOAJ

【 摘 要 】

Neutron scattering intensity from Cu2O compound has been measured at 10 K and 295 K with High Resolution Powder Diffractometer at JRR-3 JAEA. The oscillatory diffuse scattering related to correlations among thermal displacements of atoms was observed at 295 K. The correlation parameters were determined from the observed diffuse scattering intensity at 10 and 295 K. The force constants between the neighboring atoms in Cu2O were estimated from the correlation parameters and compared to those of Ag2O

【 授权许可】

Unknown