Superconductive B-doped nanocrystalline diamond thin films: Electrical transport and Raman spectra

被引:72
作者
Nesladek, Milos [1 ]
Tromson, Dominique
Mer, Christine
Bergonzo, Philippe
Hubik, Pavel
Mares, Jiri J.
机构
[1] CEA Saclay, LIST, Rech Technol, F-91191 Gif Sur Yvette, France
[2] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic
关键词
Nanostructured materials;
D O I
10.1063/1.2211055
中图分类号
O59 [应用物理学];
学科分类号
摘要
Electrical transport properties of thin boron doped nanocrystalline diamond films with thicknesses of 60-500 nm have been studied. The Raman spectra measured exhibit Fano resonances, characteristic for B concentrations close to the metal-to-insulator transition. Upon increasing the B concentration, the sp(2) carbon related Raman resonances vanish. In, such boron-doped nanocrystalline diamond films, a positive magnetoresistance could be observed at liquid helium temperatures. The boron doped diamond films show conductivity similar to that of B-doped epitaxial diamond without any significant contribution of the grain boundary transport, leading to the superconductive transition in nanocrystalline diamond at similar to 1.66 K. (c) 2006 American Institute of Physics.
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页数:3
相关论文
共 16 条
[1]   Interpretation of the Raman spectra of ultrananocrystalline diamond [J].
Birrell, J ;
Gerbi, JE ;
Auciello, O ;
Gibson, JM ;
Johnson, J ;
Carlisle, JA .
DIAMOND AND RELATED MATERIALS, 2005, 14 (01) :86-92
[2]   Dependence of the superconducting transition temperature on the doping level in single-crystalline diamond films [J].
Bustarret, E ;
Kacmarcik, J ;
Marcenat, C ;
Gheeraert, E ;
Cytermann, C ;
Marcus, J ;
Klein, T .
PHYSICAL REVIEW LETTERS, 2004, 93 (23)
[3]   Optical and electronic properties of heavily boron-doped homo-epitaxial diamond [J].
Bustarret, E ;
Gheeraert, E ;
Watanabe, K .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2003, 199 (01) :9-18
[4]  
EFROS AL, 1984, ELECT PROPERTIES DOP, P155
[5]   Origin of the 1150-cm-1 Raman mode in nanocrystalline diamond -: art. no. 121405 [J].
Ferrari, AC ;
Robertson, J .
PHYSICAL REVIEW B, 2001, 63 (12)
[6]   Protein-modified nanocrystalline diamond thin films for biosensor applications [J].
Härtl, A ;
Schmich, E ;
Garrido, JA ;
Hernando, J ;
Catharino, SCR ;
Walter, S ;
Feulner, P ;
Kromka, A ;
Steinmüller, D ;
Stutzmann, M .
NATURE MATERIALS, 2004, 3 (10) :736-742
[7]   First-principles study of C6B2 [J].
Kobayashi, K ;
Zenitani, Y ;
Akimitsu, J .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2005, 426 :374-380
[8]  
MAIER F, 2003, MAT RES SOC S P, V737
[9]   Weak localization in ultrananocrystalline diamond [J].
Mares, JJ ;
Hubík, P ;
Kristofik, J ;
Kindl, D ;
Fanta, M ;
Nesládek, M ;
Williams, O ;
Gruen, DM .
APPLIED PHYSICS LETTERS, 2006, 88 (09)
[10]  
NEBEL CE, 2001, PROPERTIES GROWTH AP