Pan et al. Nanoscale Research Letters 2011, 6:97 http://www.nanoscalereslett.com/content/6/1/97 17. Venkatesan M, Fitzgerald CB, Coey JMD: Unexpected magnetism in a dielectric oxide. Nature (London) 2004, 430:630. 18. Zhang X, Cheng YH, Li LY, Liu H, Zuo X, Wen GH, Li L, Zheng RK, Ringer SP: Evidence for high-T-c ferromagnetism in Zn-x(ZnO)(1-x) granular films mediated by native point defects. Phys Rev B 2009, 80:174427. 19. Yi JB, Pan H, Lin J, Ding J, Feng YP, Thongmee S, Liu T, Gong H, Wang L: Ferromagnetism in ZnO nanowires derived from electro-deposition on AAO template and subsequent oxidation. Adv Mater 2008, 20:1170. 20. Pan H, Zhang YW, Shenoy VB, Gao HJ: Controllable magnetic property of SiC by anion-cation codoping. Appl Phys Lett 2010, 96:192510. 21. Kroke E, Schwarz M: Novel group 14 nitrides. Coordin Chem Rev 2004, 248:493. 22. Liu M, Wang JG: Study on Mechanical Properties and Blood Compatibility of Carbon Nitride Film Deposited on NiTi Alloy. J Inorganic Mater 2009, 24:491. 23. Zhang YJ, Thomas A, Antonietti M, Wang XC: Activation of Carbon Nitride Solids by Protonation: Morphology Changes, Enhanced Ionic Conductivity, and Photoconduction Experiments. J Am Chem Soc 2009, 131:50. 24. Lee SP, Lee JG, Chowdhury S: CMOS humidity sensor system using carbon nitride film as sensing materials. Sensors 2008, 8:2662. 25. Di Noto V, Negro E, Lavina S, Gross S, Pace G: Pd-Co carbon-nitride electrocatalysts for polymer electrolyte fuel cells. Electrochmica Acta 2007, 53:1604. 26. Neidhardt J, Hultman L: Beyond beta-C3N4-fullerene-like carbon nitride: A promising coating material. J Vac Sci Technol A 2007, 25:633. 27. Gracia J, Kroll P: First principles study of C3N4 carbon nitride nanotubes. J Mater Chem 2009, 19:3020. 28. Hohenberg P, Kohn W: Inhomogeneous electron gas. Phys Rev 1964, 136: B864-B871. 29. Perdew JP, Burke K, Ernzerhof M: Generalized gradient approximation made simple. Phys Rev Lett 1996, 77:3865. 30. Kresse G, Furthmuller J: Efficient iterative schemes for ab initio total- energy calculations using a plane-wave basis set. Phys Rev B 1996, 54:11169. 31. Kresse G, Joubert D: From ultrasoft pseudopotentials to the projector augmented-wave method. Phys Rev B 1999, 59:1758. 32. Monkhorst HJ, Pack J: Special points for brillouin-zone integrations. Phys Rev B 1976, 23:5188. 33. Pan H, Feng YP, Lin JY: First-principles study of optical spectra of single- wall BC2N nanotubes. Phys Rev B 2006, 73:035420. 34. Pan H, Feng YP, Lin JY: Ab initio study of single-wall BC2N nanotubes. Phys Rev B 2006, 73:045409. 35. Dalpian GM, Wei SH: Carrier-mediated stabilization of ferromagnetism in semiconductors: holes and electrons. Phys Status Solidi (b) 2006, 243:2170. 36. Yildirim T, Ciraci S: Titanium-decorated carbon nanotubes as a potential high-capacity hydrogen storage medium. Phys Rev Lett 2005, 94:175501. 37. Pan H, Feng YP, Lin J: Hydrogen adsorption by tungsten carbide nanotube. Appl Phys Lett 2007, 91:223104. 38. Pan H, Lin JY, Feng YP: Carbon Nanotubes for Supercapacitor. Nanoscale Res. Lett 2010, 7:547. doi:10.1186/1556-276X-6-97 Cite this article as: Pan et al.: Metal-functionalized single-walled graphitic carbon nitride nanotubes: a first-principles study on magnetic property. Nanoscale Research Letters 2011 6:97. Page 7 of 7 Submit your manuscript to a journal and beneﬁt from: 7 Convenient online submission 7 Rigorous peer review 7 Immediate publication on acceptance 7 Open access: articles freely available online 7 High visibility within the ﬁeld 7 Retaining the copyright to your article Submit your next manuscript at 7 springeropen.com