P. M. Sarun, S. Vinu, R. Shabna, J. B. Anooja, P. M. Aswathy and U. Syamaprasad, Structural and transport properties of (Bi1.6Pb0.5)(Sr2-xLux)Ca1.1Cu2.1O8+$\delta$ superconductor IEEE Trans. Appl. Phys., vol. 20, pp. 61-65, 2010.
P. M. Sarun, S. Vinu, R. Shabna, and U. Syamaprasad, Suppression of dissipative flux-motion in a high-Tc (Bi,Pb)-2212 superconductor by Dy-doping J. Alloy. and Compd., vol. 497, pp. 6-9, 2010.
P. M. Sarun, S. Vinu, R. Shabna, and U. Syamaprasad, Investigation of self-and in-field dependent n-value of Tb-doped (Bi,Pb)-2212 superconductor J. Appl. Phys., vol. 106, pp. 043910-4, 2009.
P. M. Sarun, S. Vinu, R. Shabna, A. Biju, P. Guruswamy, and U. Syamaprasad, Effect of sintering temperature on the microstructural and flux pinning characteristics of Bi1.6Pb0.5Sr1.8La0.2Ca1.1Cu2.1O8+$\delta$ ceramics J. Am. Ceram. Soc., vol. 92, pp. 411-15, 2009.
P. M. Sarun, S. Vinu, R. Shabna, A. Biju, and U. Syamaprasad, Properties of superconducting, polycrystalline dysprosium-doped Bi1.6Pb0.5Sr2-xDyxCa1.1Cu2.1O8+$\delta$ (0 $\leq$ x $\leq$ 0.5) Mater. Res. Bull., vol. 44, pp. 1017-1021, 2009.
P. M. Sarun, S. Vinu, R. Shabna, A. Biju, P. Guruswamy, and U. Syamaprasad, Influence of Ho-doping on the electromagnetic field-dependent E-J characteristics of (Bi,Pb)-2212 superconductor IEEE Trans. Appl. Supercond., vol. 19, pp. 35-38, 2009.
P. M. Sarun, S. Vinu, R. Shabna, A. Biju, and U. Syamaprasad, Microstructural and superconducting properties of Yb-substituted (Bi,Pb)-2212 superconductor sintered at different temperatures J. Alloys Compd., vol. 472, pp. 13-17, 2009.
P. M. Sarun, R. Shabna, S. Vinu, A. Biju, and U. Syamaprasad, Highly enhanced superconducting properties of Bi-2212 by Y and Pb co-doping Physica B, vol. 404, pp. 1602-1606, 2009.
P. M. Sarun, S. Vinu, R. Shabna, A. Biju, and U. Syamaprasad, Highly enhanced superconducting properties of Eu-doped (Bi,Pb)-2212 Mater. Lett., vol. 62, pp. 2725-2728, 2008.
P. M. Sarun, A. Biju, P. Guruswamy, and U. Syamaprasad, Enhanced flux pinning of an Nd-added (Bi,Pb)- 2212 superconductor J. Am. Ceram. Soc., vol. 90, pp. 3138-3141, 2007.
P. M. Sarun, R. P. Aloysius, and U. Syamaprasad, Preparation of high performance (Bi,Pb)-2223 superconductor using a sol-gel synthesized amorphous precursor through controlled gelation Mater. Lett., vol. 60, pp. 3797-3802, 2006.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, P. Guruswamy, and U. Syamaprasad, Suppression of of flux-creep in (Bi,Pb)-2212 superconductor by holmium doping Physica B, vol. 405, pp. 4355-4359, 2010.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, and U. Syamaprasad, Microstructure and transport properties of Bi1.6Pb0.5Sr2-xLuxCa1.1Cu2.1O8+$\delta$ superconductor Mater. Chem. Phys., vol. 119, pp. 135-139, 2010.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, and U. Syamaprasad, Enhancement of flux pinning and Anderson- Dew-Hughes pinning analysis in Bi1.6Pb0.5Sr2-xTbxCa1.1Cu2.1O8+$\delta$ superconductor J. Alloys Compd., vol. 477, pp. L13-L16, 2009.
S. Vinu, P. M. Sarun, R. Shabna, and U. Syamaprasad, Analysis of thermo-magnetic fluctuations in Bi1.6Pb0.5Sr2-xLuxCa1.1Cu2.1O8+$\delta$ (0.000 $\leq$ x $\leq$ 0.125) superconductor J. Alloys Compd., vol. 487, pp. 1-4, 2009.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, P. Guruswamy, and U. Syamaprasad, Influence of sintering temperature on microstructure, critical current density and pinning potential of superconducting Bi1.6Pb0.5Sr1.8Dy0.2Ca1.1Cu2.1O8+$\delta$ ceramics Solid Stat. Sci., vol. 11, pp. 1150-1155, 2009.
S. Vinu, P. M. Sarun, R. Shabna, and U. Syamaprasad, Analysis of thermo-magnetic fluctuations above the glass-transition temperature in Bi1.6Pb0.5Sr2-xEuxCa1.1Cu2.1O8+$\delta (0.000 $\leq$ x $\leq$ 0.180) system Solid Stat. Sci., vol. 11, no. 9, pp. 1530-1534, 2009.
S. Vinu, P. M. Sarun, R. Shabna, and U. Syamaprasad, Refinement of microstructure and highly improved electrical properties of Bi1.6Pb0.5Sr1.925Ho0.075Ca1.1Cu2.1O8+$\delta$ superconductor J. Appl. Phys., vol. 106, pp. 063920-6, 2009.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, and U. Syamaprasad, Scaling of the vortex-liquid resistivity and temperature and magnetic field dependent activation energy in Ho-doped (Bi, Pb)-2212 superconductor J. Appl. Phys., vol. 105, pp. 123901-4, 2009.
S. Vinu, P. M. Sarun, R. Shabna, and U. Syamaprasad, Erratum: Enhancement of critical current density and flux pinning properties of Gd-doped (Bi,Pb)-2212 superconductor (J. Appl. Phys. (2008) 104 (043905)) J. Appl. Phys., vol. 105, pp. 129901-1, 2009.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, and U. Syamaprasad, Enhancement of critical current density and flux pinning properties of Gd-doped (Bi,Pb)-2212 superconductor J. Appl. Phys., vol. 104, pp. 043905-5, 2008.
S. Vinu, P. M. Sarun, A. Biju, R. Shabna, P. Guruswamy, and U. Syamaprasad, The effect of substitution of Eu on the critical current density and flux pinning properties of (Bi,Pb)-2212 superconductor Supercond. Sci. Technol., vol. 21, p. 045001, 2008.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, and U. Syamaprasad, The influence of sintering temperature on the microstructure and superconducting properties of Bi1.7Pb0.4Sr1.8Nd0.2Ca1.1Cu2.1O8+$\delta$ superconductor Supercond. Sci. Technol., vol. 21, p. 085010, 2008.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, and U. Syamaprasad, Improved microstructure and flux pinning properties of Gd-substituted (Bi,Pb)-2212 superconductor sintered between 846 and 860 oC Mater. Lett., vol. 62, pp. 4421-4424, 2008.
S. Vinu, P. M. Sarun, R. Shabna, A. Biju, P. Guruswamy, and U. Syamaprasad, Effect of Dy substitution at the Sr site on the critical current density and flux-pinning properties of (Bi,Pb)-2212 superconductor J. Am. Ceram. Soc., vol. 91, pp. 3585-3589, 2008.
R. Shabna, P. M. Sarun, S. Vinu, and U. Syamaprasad, Superconductor-metal-insulator crossover in Bi1.7Pb0.4Sr2.1Ca1.1Cu2.1O8+$\delta$ (0.2 $\leq$ x $\leq$ 0.6) sintered between 845 oC $\leq$ x $\leq$ 865 oC Mater. Sci. Engg. B, vol. 172, pp.196-200, 2010.
R. Shabna, P. M. Sarun, S. Vinu, and U. Syamaprasad, Charge carrier localization and metal to insulator transition in cerium substituted (Bi,Pb)-2212 superconductor J. Alloys Compd., vol. 493, pp. 11-16, 2010.
R. Shabna, P. M. Sarun, S. Vinu, and U. Syamaprasad, Structural and electrical properties of Bi1.7Pb0.4Sr2-x HoxCa1.1Cu2.1O8+$\delta$ system across the metal to insulator transition J. Alloys. Compd., vol. 481, pp. 797-801, 2009.
R. Shabna, P. M. Sarun, S. Vinu, A. Biju, and U. Syamaprasad, Doping controlled metal to insulator transition in the (Bi,Pb)-2212 system Supercond. Sci. Technol, vol. 22, p. 045016, 2009.
R. Shabna, P. M. Sarun, S. Vinu, and U. Syamaprasad, Doping dependent metal to insulator transition in (Bi,Pb)-2212 system: The evolution of structural and electronic properties with europium substitution Chinese Phys. B, pp. 4000-4004, 2009.
R. Shabna, P. M. Sarun, S. Vinu, and U. Syamaprasad, Transport Properties near the metal to insulator transition in samarium substituted (Bi,Pb)-2212 system J. Appl. Phys., vol. 105, pp. 113925-6, 2009.
R. Shabna, P. M. Sarun, S. Vinu, A. Biju, P. Guruswamy, and U. Syamaprasad, Metal-insulator transition and conduction mechanism in dysprosium doped Bi1.7Pb0.4Sr2Ca1.1Cu2.1O8+$\delta$ system J. Appl. Phys., vol. 104, p. 013919, 2008.
A. Biju, P. M. Sarun, R. P. Aloysius, and U. Syamaprasad, Flux pinning properties of Yb substituted (Bi,Pb)-2212 superconductor J. Alloys Compd., vol. 454, pp. 46-51, 2008.
A. Biju, P. M. Sarun, R. P. Aloysius, and U. Syamaprasad, Comparison of superconducting properties of Ce added (Bi,Pb)-2212 with other rare earth additions J. Alloys Compd., vol. 433, p. 68, 2007.
A. Biju, P. M. Sarun, R. P. Aloysius, and U. Syamaprasad, Structural and superconducting properties of neodymium added (Bi,Pb)2Sr2CaCu2Oy Mater. Res. Bull., vol. 42, pp. 2057-2066, 2007.
A. Biju, K. Vinod, P. M. Sarun, and U. Syamaprasad, Highly enhanced flux pinning in Pb and rare earth co-doped Bi-2212 Appl. Phys. Lett., vol. 90, pp. 072505-3, 2007.
A. Biju, P. M. Sarun, S. Vinu, P. Guruswamy, and U. Syamaprasad, Critical current density and flux pinning in a Bi1.7Pb0.4Sr2-xLaxCa1.1Cu2.1Oy system Supercond. Sci. Technol., vol. 20, pp. 781-784, 2007.
A. Biju, P. M. Sarun, R. P. Aloysius, and U. Syamaprasad, Superconductivity and flux pinning in Dy added (Bi,Pb)-2212 superconductor Supercond. Sci. Technol., vol. 19, pp. 1023-1029, 2006.
A. Biju, R. Shabna, P. M. Sarun, S. Vinu, and U. Syamaprasad, Carrier induced Effect of Yb, Gd and Nd substitution at the Sr site on the metal-insulator transition of the (Bi,Pb)-2212 system Inter. J. Appl. Ceram. Technol., vol. 7[S1], E16 2010.
K. Vinod, R. G. Abhilashkumar, A. Biju, P. M. Sarun, and U. Syamaprasad, Flux pinning properties of magnesium diboride added (Bi,Pb)-2212 superconductors J. Alloys Compd., vol. 439, pp. L1-L4, 2007.
V. G. Prabitha, A. Biju, R. G. Abhilashkumar, ii, R. P. Aloysius, and U. Syamaprasad, Effect of Sm addition on (Bi,Pb)-2212 superconductor Physica C, vol. 433, pp. 28-36, 2005.
Structural and Superconducting properties of Gd-substituted (Bi,Pb)2Sr2Ca1Cu2O8+$\delta$ superconductor Presented at 21th Kerala Science Congress, Kollam, January 29-31, (“BEST POSTER AWARD”), 2009.
Transport property near the metal to insulator transition in samarium substituted (Bi,Pb)-2212 system Presented in International Conference on Advanced Functional materials (ICAFM-2009), Trivandrum, December, 9-10, vol. (“BEST POSTER AWARD”), 2009.
Microstructural and flux pinning characteristics of Bi1.6Pb0.5Sr1.8La0.2Ca1.1Cu2.1O8+$\delta$ superconductor sintered at different temperatures Presented in International Conference on Advanced Functional materials (ICAFM-2009), Trivandrum, December, 9-10, 2009.
Thermo-magnetic fluctuations above the glass-transition temperature in Eu-doped (Bi,Pb)-2212 superconductor Presented in International Conference on Advanced Functional materials (ICAFM-2009), Trivandrum, December, 9-10, 2009.
Impact of Europium substituted on the metal to insulator transition phenomenon in (Bi,Pb)-2212 superconductor Presented at 21th Kerala Science Congress, Kollam, January 29-31, 2009.
Metallic, Superconducting and Semiconducting properties of Praseodymium substituted (Bi,Pb)-2212 system Presented at Special Purpose, Strategic and Futuristic Materials for High Technology Sectors, Trivandrum, October 16-17, 2008.
Critical current density and flux pinning properties of Bi1.6Pb0.5Sr2-xEuxCa1.1Cu2.1Oy superconductor Presented at Special Purpose, Strategic and Futuristic Materials for High Technology Sectors, Trivandrum, October 16-17, 2008.
Critical current density and flux pinning properties of Bi1.7Pb0.4Sr2-xGdxCa1.1Cu2.1O8+$\delta$ superconductor Presented at 53rd DAE Solid State Physics Symposium, BARC, Mumbai, December 16-20, 2008.
Superconductivity to Semiconductivity - An insight into the dependence of structural and electrical properties of (Bi,Pb)-2212 on a rare-earth modification Presented at 20th Kerala Science Congress, Trivandrum, January 28-31, 2008.
Metal-Insulator transition in Bi1.7Pb0.4Sr2Ca1.1Cu2.1DyxO8+$\delta$ system Presented at 52nd DAE-Solid State Physics Symposium 2007, Mysore, December 27-31, 2007.
Enhanced Flux pinning in La substituted (Bi,Pb)-2212 superconductor Presented at 52nd DAE-Solid State Physics Symposium, Mysore, December 27-31, 2007.
Fabrication of high Je (Bi,Pb)-2223/Ag multifilamentary tapes using a powder and wire-in-tube method Presented at International Conference on Advanced Materials and Composites (ICAMC-2007), Trivandrum, October 24-26, 2007.
Pinning force density of Y-added (Bi,Pb)-2212 superconductor Presented at International Conference on Advanced Materials and Composites (ICAMC-2007), Trivandrum, October 24-26, 2007.
Investigation on Metal-Insulator transition in Bi1.7Pb0.4Sr2Ca1.1Cu2.1YxO8+$\delta$ superconductor Presented in International Conference on Advanced Materials and Composites (ICAMC-2007), Trivandrum, October, 24-26, 2007.
Enhanced critical current density and flux pinning properties of Bi1.6Pb0.5Sr2-xEuxCa1.1Cu2.1Oy superconductor Presented at International seminar on mineral processing technology, Trivandrum, April 22-24, 2008.