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

作者: Miloš Nesládek , Dominique Tromson , Christine Mer , Philippe Bergonzo , Pavel Hubik

DOI: 10.1063/1.2211055

关键词:

摘要: Electrical transport properties of thin boron doped nanocrystalline diamond films with thicknesses 60–500nm have been studied. The Raman spectra measured exhibit Fano resonances, characteristic for B concentrations close to the metal-to-insulator transition. Upon increasing concentration, sp2 carbon related resonances vanish. In such boron-doped films, a positive magnetoresistance could be observed at liquid helium temperatures. show conductivity similar that B-doped epitaxial without any significant contribution grain boundary transport, leading superconductive transition in ∼1.66K.

参考文章(13)
M. H. Nazaré, A. J. Portugal, Properties, Growth and Applications of Diamond ,(2000)
Boris I. Shklovskii, Alex L. Efros, Electronic properties of doped semiconductors ,(1984)
J. Ruvalds, A. Zawadowski, Two-Phonon Resonances and Hybridization of the Resonance with Single-Phonon States Physical Review B. ,vol. 2, pp. 1172- 1175 ,(1970) , 10.1103/PHYSREVB.2.1172
E. Bustarret, J. Kačmarčik, C. Marcenat, E. Gheeraert, C. Cytermann, J. Marcus, T. Klein, Dependence of the superconducting transition temperature on the doping level in single crystalline diamond films. Physical Review Letters. ,vol. 93, pp. 237005- 237005 ,(2004) , 10.1103/PHYSREVLETT.93.237005
Andreas Härtl, Evelyn Schmich, Jose A. Garrido, Jorge Hernando, Silvia C. R. Catharino, Stefan Walter, Peter Feulner, Alexander Kromka, Doris Steinmüller, Martin Stutzmann, Protein-modified nanocrystalline diamond thin films for biosensor applications Nature Materials. ,vol. 3, pp. 736- 742 ,(2004) , 10.1038/NMAT1204
J) Birrell, J (Birrell, JE) Gerbi, JE (Gerbi, O) Auciello, O (Auciello, JM) Gibson, JM (Gibson, J) Johnson, J (Johnson, JA) Carlisle, JA (Carlisle, Interpretation of the Raman spectra of ultrananocrystalline diamond Diamond and Related Materials. ,vol. 14, pp. 86- 92 ,(2005) , 10.1016/J.DIAMOND.2004.07.012
Kazuaki Kobayashi, Yuji Zenitani, Jun Akimitsu, First-principles study of C6B2 Physica C-superconductivity and Its Applications. ,vol. 426, pp. 374- 380 ,(2005) , 10.1016/J.PHYSC.2005.01.031
J. J. Mareš, P. Hubík, J. Krištofik, D. Kindl, M. Fanta, M. Nesládek, O. Williams, D. M. Gruen, Weak localization in ultrananocrystalline diamond Applied Physics Letters. ,vol. 88, pp. 092107- ,(2006) , 10.1063/1.2176853
Takeshi Hatano, Minoru Tachiki, Hiroshi Kawarada, Hitoshi Umezawa, Yoshihiko Takano, Isao Sakaguchi, Masanori Nagao, Kensaku Kobayashi, Superconductivity in diamond thin films well above liquid helium temperature Applied Physics Letters. ,vol. 85, pp. 2851- 2853 ,(2004) , 10.1063/1.1802389
Oliver A. Williams, Stephane Curat, Jennifer E. Gerbi, Dieter M. Gruen, Richard B. Jackman, n-type conductivity in ultrananocrystalline diamond films Applied Physics Letters. ,vol. 85, pp. 1680- 1682 ,(2004) , 10.1063/1.1785288