共 22 条
TUNNELING MODES AND LOCAL STRUCTURAL ORDER IN AMORPHOUS ARSENIC
被引:16
作者:
JELLISON, GE
PETERSEN, GL
TAYLOR, PC
机构:
[1] USN,RES LAB,WASHINGTON,DC 20375
[2] MATEC INC,WARWICK,RI 02886
关键词:
D O I:
10.1103/PhysRevLett.42.1413
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
Pulsed nuclear-quadrupole-resonance (NQR) measurements have been performed in rhombohedral, orthorhombic, and amorphous (a-) arsenic. Measurements of T1 provide evidence of low-frequency disorder modes in a-As, while the NQR frequencies indicate that the bonding is predominately p-like in all three materials. The asymmetric NQR line shape of a-As indicates that bond-angle distributions inferred from x-ray scattering and continuous-random-network models do not result primarily from a distribution in bond hydridizations. © 1979 The American Physical Society.
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页码:1413 / 1416
页数:4
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