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Intercalation of P atoms in Fullerene-like CPx
被引:42
|作者:
Gueorguiev, G. K.
[1
]
Czigany, Zs.
[2
]
Furlan, A.
[3
]
Stafstrom, S.
[1
]
Hultman, L.
[1
]
机构:
[1] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden
[2] Hungarian Acad Sci, Res Inst Tech Phys & Mat Sci, H-1525 Budapest, Hungary
[3] Uppsala Univ, Angstrom Lab, Dept Chem Mat, SE-75121 Uppsala, Sweden
基金:
欧洲研究理事会;
瑞典研究理事会;
关键词:
CARBIDE THIN-FILMS;
1ST-PRINCIPLES CALCULATIONS;
MAGNETIC-PROPERTIES;
PHOSPHORUS;
PRECURSORS;
STABILITY;
EVOLUTION;
C48N12;
D O I:
10.1016/j.cplett.2010.11.024
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The energy cost for P atom intercalation and corresponding structural implications during formation of Fullerene-like Phosphorus carbide (FL-CPx) were evaluated within the framework of Density Functional Theory. Single P atom interstitial defects in FL-CPx are energetically feasible and exhibit energy cost of 0.93-1.21 eV, which is comparable to the energy cost for experimentally confirmed tetragon defects and dangling bonds in CPx. A single P atom intercalation event in FL-CPx can increase the inter-sheet distance from 3.39-3.62 angstrom to 5.81-7.04 angstrom. These theoretical results are corroborated by Selected Area Electron Diffraction characterization of FL-CPx samples. (C) 2010 Elsevier B.V. All rights reserved.
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页码:400 / 403
页数:4
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