Nanoscale elastic inhomogeneity of a Pd-based metallic glass: Sound velocity from ultrasonic and inelastic x-ray scattering experiments

作     者：T. Ichitsubo S. Hosokawa K. Matsuda E. Matsubara N. Nishiyama S. Tsutsui A. Q. R. Baron 

作者机构：Department of Materials Science and Engineering Kyoto University Kyoto 606-8501 Japan Center for Materials Research using Third-Generation Synchrotron Radiation Facilities Hiroshima Institute of Technology Hiroshima 731-5193 Japan RIMCOF R&D Institute of Metals and Composites for Future Industries Sendai 980-8577 Japan SPring-8/JASRI 1-1-1 Kouto Sayo-cho Hyogo-ken 679-5198 Japan SPring-8/RIKEN 1-1-1 Kouto Sayo-cho Hyogo-ken 679-5148 Japan 

出 版 物：《Physical Review B》 (Phys. Rev. B Condens. Matter Mater. Phys.)

年 卷 期：2007年第76卷第14期

页      面：140201(R)-140201(R)页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

摘      要：In this paper, we show experimentally that the sound velocity of nanometer wavelength exceeds that of millimeter wavelength for a Pd-based metallic glass completely frozen far below the glass transition temperature. This indicates that nanoscale elastically harder regions exist in the glass matrix and, hence, elastically softer regions are also present so as to realize the macroscopic elasticity.