ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Soft x-ray core-level photoabsorption has been measured from three forms of boron nitride, namely the hexagonal (hBN), cubic (cBN), and incoherent (iBN) phases. The B 1s and N 1s photoabsorption spectra of the hBN sample show evidence of both σ*- and π*-empty states, indicative of sp2 bonding, while the cBN absorption spectra exhibits only sp3 bonding in absorption features characteristic of the zincblende structure. The incoherent phase of BN in the form of a thin film on a Si substrate possesses σ* and π* states similar to hBN. The B 1s π* absorption features of the iBN film show an angular dependence which suggests that the microstructure consists of hexagonal-phase layer planes oriented normal to the BN/Si interface.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.110556
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