Roland V. Sarmago

Dr. Roland V. Sarmago

Institute National Institute of Physics(NIP)
Research Group Condensed Matter Physics Lab: Superconductor Group (CMPL-SuperCon)


Academic Rank & Administrative Positions

Director, National Institute of Physics

current

Coordinator
Material Science and Engineering Program,
College of Science, University of the Philippines Diliman

Vice Chairperson
Bids and Awards Committee,
University of the Philippines Diliman

Chairman
National Research Council of the Philippines – Department of Science and Technology (NRCP-DOST) Division IX (Physics)

Professor
National Institute of Physics,
University of the Philippines Diliman

past

Vice President
National Research Council of the Philippines – Department of Science and Technology (NRCP-DOST)

Deputy Director for Research and Extension
National Institute of Physics,
University of the Philippines Diliman

Courses handled

Physics 173 (Solid State Physics-Crystal structure of solids; lattice vibrations; band theory of solids; metals; semiconductor materials and devices; dielectric, magnetic, thermal, optical, and mechanical properties of solids, superconductors)

Publications

INTERNATIONAL
Enhanced flux pinning in IR PLD grown Y-doped Bi-2212 films. Glaiza Rose S. Blanca, Jeffrey C. De Vero, Wilson O. Garcia, Roland V. Sarmago. Physica C In Press, Corrected Proof.

Stoichiometric Transfer by Infrared PLD of Y-doped Bi-Sr-Ca-Cu-O Investigated using Time-Resolved Optical Emission Spectroscopy. Jaziel R. Vitug, Jeffrey C. De Vero, Glaiza Rose S Blanca, Roland V. Sarmago, Wilson O. Garcia. Journal of Applied Spectroscopy, Vol. 78, No. 6, January, 2012.

Stoichiometric transfer of material in the infrared pulsed laser deposition of yttrium doped Bi-2212 films. Jeffrey C. De Vero, Glaiza Rose S. Blanca, Jaziel R. Vitug, Wilson O. Garcia and Roland V. Sarmago. Physica C 471 (2011) 378-383.

Infrared pulsed laser deposition of Yttrium doped BSCCO superconducting films. Jeffrey C. De Vero, Glaiza Rose S. Blanca, Jaziel R. Vitug, Wilson O. Garcia, Roland V. Sarmago. Advances in Optoelectronics and Micro/Nano-Optics (AOM), 2010 OSA-IEEE-COS 1-3.

Growth Evolution of Bi2Sr2CaCu2O8+d Thin Films Deposited by Infrared (1064 nm) Pulsed Laser Deposition. Jeffrey C. de Vero, Jacque Lynn F. Gabayno, Wilson O. Garcia, Roland V. Sarmago. Physica C 470 (2010) 149-154.

Photoluminescence and Fractal Properties of Diverse Carbothermal Zinc Oxide Nanostructures. Eduardo R. Magdaluyo, Ian Harvey J. Arellano, Alvin Karlo G. Tapia, Roland V. Sarmago and Leon M. Payawan. Advanced Materials Research 31 (2008) 92-94.

Growth of Superconducting Bi2Sr2CaCu2O8+d Films by Sedimentation Deposition and Liquid Phase Sintering and Annealing Technique. R.L.C. Manahan and R.V. Sarmago. Physica C 445-448, 733, 2006.

AC Loss Intrinsic to MgB2 at Low Magnetic Fields. Roland V. Sarmago and Margie Olbinado. Supercond. Sci. Technol. 18, 307-310, 2005.

Harmonic Response of Coupled and Uncoupled Granular YBCO. Maria Veronica S. Torralba and Roland V. Sarmago. Supercond. Sci. Technol. 17, 1381-1388, 2004.

Synthesis of Pb-doped Bi-2223 from Pb-doped Bi-2212 via partial melting. Marvin U. Herrera and Roland V. Sarmago. Ceramics International 30, 1611, 2004.

Low Field AC Susceptibility of YBCO: the frequency and field dependence of intra- and intergrain coupling losses in the absence of vortices. R.V. Sarmago and B.G. Singidas. Supercond. Sci. Technol. 17, S578-S582, 2004.

A new perspective to AC magnetic susceptibility measurements in an unbalanced mutual inductance bridge. R.V. Sarmago, K.L.C. Molina, and L.J.D. Guerra. Physica C, 239, V. 364-365, 2001.

Growth of Superconducting Bi2Sr2CaCu2O8+delta Single Crystals from a (KCl-Bi2O3) Flux. M.M. Cruz, K.L.C. Molina, R.V. Sarmago and A. A. Salvador. Physica C, 539, V.341-348 (1-4), 2000.

Raman and Luminescence Spectra in the spin-Peierls System Cu1-xNixGeO3. H. Kuroe, T. Kaneko, T. Sekine, R. Sarmago, N. Koide, T. Masuda, I. Tsukada and K. Uchinokura. Physica B, 1643, V.284 – 288 (1-4), 2000.

Effect of Post Combustion Denitration Treatment in Pb-Bi-Sr-Ca-Cu-O Ceramic Superconductors. K.D. Develos, A.B. Villaflor and R.V. Sarmago. Jpn. J. Appl. Phys. Pt. 1, 34, 488, 1995.

Effect of Pb Substitution for Ca in BiSrCaCuO. R.V. Sarmago, H. Enomoto and H. Ozaki, Phase Transitions, 41, 199, 1993.

Nd Substitution for Ca in Bi 2212 Superconductors via LPE. R.V. Sarmago, H. Ikuta, T. Hirano, H. Enomoto, J.S. Shin, E. Uchida and H. Ozaki. High Temperature Superconductivity (BHSTC '92), Z.Z. Gan, S.S. Xie & Z.X. Zhao Eds. p. 228, World Scientific, 1993.


LOCAL
Double Sign Reversal of the Hall Voltage in Bi2Sr2CaCu2O8+d Thin Film. A.P.C. dela Cruz, C.R. de la Cruz and R.V. Sarmago, Science Diliman V.14, 41, 2003.

Synthesis of Pb-doped Bi-2223 from Pb-doped Bi-2212, Ca2CuO3, and CuO above the Glass Transition Temperature of Bi-2212. M. U. Herrera and R.V. Sarmago, Science Diliman V.14, 51, 2002.

Synthesis of Bulk Superconducting Magnesium Diboride. M.P. Olbinado, L.J.D. Guerra and R.V. Sarmago. Science Diliman V.14, 17, 2002.

Mechanism of Flux-flow Activation in c-axis Oriented Bi2Sr2CaCu2O8+d Thin Films. C. de la Cruz, L. Guerra, R. Sarmago and A. Salvador. Science Diliman V.13, 19, 2001.

Silicon Nitride (SiNxHy) by Plasma-Enhanced Chemical Vapor Deposition. R. Manay, V. Avellana and R.V. Sarmago. Science Diliman V. 13, 26, 2001.

Electrical and Optical Characterization of AlxGa1-xAs/GaAs p-n Junctions Grown via Liquid Phase Epitaxy. J. Laniog, K. Bautista, M. Patricio, R. Sarmago and A. Salvador. Science Diliman V. 13, 47, 2001.

Evidence of normal state pseudogap in bulk superconducting tunneling junctions of YBa2Cu3O7-delta. L.Guerra, M. Reyes, A. Manuel, R.V. Sarmago, and A. Salvador. Science Diliman V.11, 11, 1999.

Resistivity measurements on bulk Bi2Sr2CaCu2O8+delta: Contribution of vortices at low magnetic fields. C. de la Cruz, L. Guerra, R.V. Sarmago, and A. Salvador. Science Diliman V.11, 15, 1999.

Experimental observation of Non-S-wave Superconducting behavior in bulk superconducting tunneling junctions of YBa2Cu3O7-d. L.J.D. Guerra, F.L. Basco, and R.V. Sarmago. Science Diliman V10, 7, 1998.

Awards and Recognitions

  • Most Outstanding Research of DOST-PCASTRD (1994)
  • Outstanding Young Scientist of NAST-DOST (1996)
  • 27th SPP Physics Congress Best Poster Award (2009)
  • 28th SPP Physics Congress Best Poster Award (2010)
  • Outstanding Thesis and Dissertation in Advanced S&T (Physics) (adviser) of DOST-PCIEERD (2010)

See Also