Neutron scattering evidence for localized soft modes in amorphous polymers

被引:61
作者
Buchenau, U [1 ]
Pecharroman, C [1 ]
Zorn, R [1 ]
Frick, B [1 ]
机构
[1] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE 09, FRANCE
关键词
D O I
10.1103/PhysRevLett.77.659
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The localization of low-frequency vibrational modes in amorphous solids can be determined from incoherent neutron scattering. Time-of-flight data from polystyrene and polybutadiene show a localization of the boson peak modes to about ten monomers.
引用
收藏
页码:659 / 662
页数:4
相关论文
共 21 条
[11]   LOCAL MOTIONS OF CIS-1,4-POLYBUTADIENE IN THE MELT - A QUASI-ELASTIC NEUTRON-SCATTERING STUDY [J].
KANAYA, T ;
KAJI, K ;
INOUE, K .
MACROMOLECULES, 1991, 24 (08) :1826-1832
[12]  
KANAYA T, COMMUNICATION
[13]  
KARPOV VG, 1983, ZH EKSP TEOR FIZ+, V84, P760
[14]   DEBYE-WALLER FACTORS IN AMORPHOUS POLYMERS [J].
LINDER, K ;
FRICK, B ;
BUCHENAU, U .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1993, 201 (1-3) :112-114
[15]   UNIVERSAL FORM OF THE LOW-ENERGY (2 TO 10 MEV) VIBRATIONAL-SPECTRUM OF GLASSES [J].
MALINOVSKY, VK ;
NOVIKOV, VN ;
PARSHIN, PP ;
SOKOLOV, AP ;
ZEMLYANOV, MG .
EUROPHYSICS LETTERS, 1990, 11 (01) :43-47
[16]  
MARSHALL W, 1971, THEORY THERMAL NEUTR, P80
[17]   DYNAMICAL PROPERTIES OF FRACTAL NETWORKS - SCALING, NUMERICAL SIMULATIONS, AND PHYSICAL REALIZATIONS [J].
NAKAYAMA, T ;
YAKUBO, K ;
ORBACH, RL .
REVIEWS OF MODERN PHYSICS, 1994, 66 (02) :381-443
[18]   DYNAMICS OF SE GLASSES [J].
OLIGSCHLEGER, C ;
SCHOBER, HR .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1993, 201 (1-3) :391-394
[19]  
Phillips W. A., 1981, AMORPHOUS SOLIDS LOW
[20]   LOCALIZED LOW-FREQUENCY VIBRATIONAL-MODES IN GLASSES [J].
SCHOBER, HR ;
LAIRD, BB .
PHYSICAL REVIEW B, 1991, 44 (13) :6746-6754