Effect of B-complexes on lattice structure and electronic properties in heavily boron-doped diamond

被引：18

作者：

Long, Run ^{[1
]}

Dai, Ying ^{[1
]}

Guo, Meng ^{[1
]}

Yu, Lin ^{[1
]}

Huang, Baibiao ^{[1
]}

Zhang, Ruiqin ^{[2
,3
]}

Zhang, Wenjun ^{[2
,3
]}

机构：

[1] Shandong Univ, Sch Phys & Microelect, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] City Univ Hong Kong, COSDAF, Hong Kong, Hong Kong, Peoples R China

[3] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

来源：

基金：

中国国家自然科学基金;

关键词：

boron-doped diamond; superconducting transition; critical temperature T(C);

D O I：

10.1016/j.diamond.2007.12.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

On the basis of first-principle calculations for a series of B-doped supercells models, we confirmed that the lattice parameter increases with the boron concentration in a proximity linear relation. The electronic structure shows that the impurity band induced by B-complexes except B dimer mixes with valence band and the Fermi level locates in the valence band in heavily boron-doped diamond, which may well explain recent superconducting transition experimental findings. Our results indicate that the superconducting critical temperature T(C) is not only related to the B concentration, but also affected by the B configurations in diamond lattice. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：234 / 239

页数：6

共 32 条

[11] Theory of boron aggregates in diamond: First-principles calculations [J].

Goss, JP ;

Briddon, PR .

PHYSICAL REVIEW B, 2006, 73 (08)

[12] Boron spectral density and disorder broadening in B-doped diamond [J].

Lee, KW ;

Pickett, WE .

PHYSICAL REVIEW B, 2006, 73 (07)

[13] Superconductivity in boron-doped diamond [J].

Lee, KW ;

Pickett, WE .

PHYSICAL REVIEW LETTERS, 2004, 93 (23)

[14] First-principles study of electron-phonon coupling in hole- and electron-doped diamonds in the virtual crystal approximation [J].

Ma, YM ;

Tse, JS ;

Cui, T ;

Klug, DD ;

Zhang, LJ ;

Xie, Y ;

Niu, YL ;

Zou, GT .

PHYSICAL REVIEW B, 2005, 72 (01)

[15] Weak localization -: Precursor of unconventional superconductivity in nanocrystalline boron-doped diamond [J].

Mares, J. J. ;

Hubik, P. ;

Nesladek, M. ;

Kindl, D. ;

Kristofik, J. .

[16] On unconventional superconductivity in boron-doped diamond [J].

Mares, J. J. ;

Nesladek, M. ;

Hubik, P. ;

Kindl, D. ;

Kristofik, J. .

[17] Boron-doped diamond -: Grained Mott's metal revealing superconductivity [J].

Mares, Jiri J. ;

Hubik, Pavel ;

Nesladek, Milos ;

Kristofik, Jozef .

[18] TRANSITION TEMPERATURE OF STRONG-COUPLED SUPERCONDUCTORS [J].

MCMILLAN, WL .

PHYSICAL REVIEW, 1968, 167 (02) :331-&

[19]

MONKHORST HJ, 1976, PHYS REV B, V13, P5188, DOI [10.1103/PhysRevB.13.5188, 10.1103/PhysRevB.16.1746]

[20] Electronic structures of B 2p and C 2p levels in boron-doped diamond films studied using soft x-ray absorption and emission spectroscopy -: art. no. 245111 [J].

Nakamura, J ;

Kabasawa, E ;

Yamada, N ;

Einaga, Y ;

Saito, D ;

Isshiki, H ;

Yugo, S ;

Perera, RCC .

PHYSICAL REVIEW B, 2004, 70 (24) :1-6

← 1 2 3 4 →