Enhanced resonant x-ray emissions of mechanically milled hexagonal boron nitride in boron K-shell excitation

被引：14

作者：

Muramatsu, Y

Oshima, M

Kawai, J

Tadokoro, S

Adachi, H

Agui, A

Shin, S

Kato, H

Kohzuki, H

Motoyama, M

机构：

[1] KYOTO UNIV, DEPT MAT SCI & ENGN, SAKYO KU, KYOTO 606, JAPAN

[2] UNIV TOKYO, INST SOLID STATE PHYS, TANASHI, TOKYO 188, JAPAN

[3] NATL LAB HIGH ENERGY PHYS, PHOTON FACTORY, TSUKUBA, IBARAKI 305, JAPAN

[4] HYOGO PREFECTURAL INST IND RES, SUMA KU, KOBE, HYOGO 654, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.76.3846

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Enhanced resonant x-ray emissions were observed from mechanically milled hexagonal boron nitride nanoclusters in boron K-shell excitation using quasimonochromatic undulator radiation. The resonant x-ray emission intensity increases with decrease in size of the milled clusters. Comparison of the measured x-ray emission spectra with the calculated spectra using the discrete-variational X alpha methods showed enhanced resonant x-ray emissions originate from the B 1s-n(*)-B 1s(-1) electron transition, with n* an unoccupied nonbonding orbital of twofold-coordination boron atoms with dangling bonds. X-ray emissions excited to n* orbitals may be possible for detecting dangling bonds in nanoclusters.

引用

页码：3846 / 3849

页数：4

共 17 条

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