Publication

Keynote Speaker

Science and Engineering national Seminar II, October 15, 2016, University of PGRI Semarang, INDONESIA. "Investigation on the excitation and emission energies of ruby based on one-electron and many-electron quantum mechanical calculations".
The 26th Annual Meeting of The Society for DV-Xα Japan, August 8, 2013, Ryukoku University, Kyoto, JAPAN. "Study on Novel Red Phosphors by DVME Approach".
The General lecture of 'Recent Development in Mathematics and Its Application', April 2, 2012, Satya Wacana Christian University Salatiga, INDONESIA. "First-Principles Electronic-Structure Calculations of Mn4+-Doped Red Phosphors for White LED Application".

Refereed papers

Mega Novita, Hikari Nagoshi, Akiho Sudo, and Kazuyoshi Ogasawara, Ab-initio study on the absorption spectrum of color change sapphire based on first-principles calculations with considering lattice relaxation-effect, IOP Conference Series: Materials Science and Engineering 299 (2017) 012060 (8 pages). doi:10.1088/1757-899X/299/1/012060
Mega Novita, Tetsuo Honma, Byungchul Hong, Atsushi Ohishi, Kazuyoshi Ogasawara, "Study of multiplet structures of Mn⁴⁺ activated in fluoride crystals", J. Lumin. 169, (2016) 596 (4 pages). doi.org/10.1016/j.jlumin.2014.12.067
Mega Novita and Kazuyoshi Ogasawara, “Study on Multiplet Energies of V²⁺, Cr³⁺, and M n⁴⁺ in MgO Host Crystal Based on First-Principles Calculations with Consideration of Lattice Relaxation”, J. Phys. Soc. Jpn. 83, (2014) 124707 (6 Pages).https://doi.org/10.7566/JPSJ.83.124707
Mega Novita, Hisashi Yoshida, and Kazuyoshi Ogasawara, “Investigation of Ion Dependence of Electronic Structure for 3d³ Ions in MgTiO₄ Based on First-Principles Configuration-Interaction Calculations”, ECS Transactions 50, (2013) 9 (9 pages). doi:10.1149/05041.0009ecst
Mega Novita and Kazuyoshi Ogasawara, “Comparative Study of Absorption Spectra of V²⁺, Cr³⁺ and Mn⁴⁺ in α-Al₂O₃ Based on First-Principles Configuration-Interaction Calculations”, J. Phys. Soc. Jpn., 81 (2012) 104709 (9 pages). http://dx.doi.org/10.1143/JPSJ.81.104709
Mega Novita and Kazuyoshi Ogasawara, "Comparative study of multiplet structures of Mn⁴⁺ in K₂SiF₆, K₂GeF₆, and K₂TiF₆ based on first-principles configuration-interaction calculations", Jpn. J. Appl. Phys. 51 (2012) 022604 (6 pages). DOI: 10.1143/JJAP.51.022604
Mega Novita, Jubhar Mangimbulude, and Ferdy Samuel Rondonuwu, “Karakterisasi Dinamika Tingkat Tenaga Eksitasi 2A_g^- Pada Karotenoid Spheroiden Menggunakan Spektroskopi Ultra Cepat Pisah Waktu”. Berkala Fisika, 13, 2010, C65 (4 pages).

Non-refereed papers

Mega Novita and Kazuyoshi Ogasawara, Calculation of Multiplet Energies of Ruby Under Pressure Based on One-Electron DV-Xα Approach, Bulletin of the Society for Descrete Variational Xα 30 (2017) In Press. ISBN: 1346-5015.
Mega Novita and Kazuyoshi Ogasawara, First-Principles Calculation of 4fⁿ- 4fⁿ^-15d Transition Energy of Trivalent Lanthanides Ions in CaF₂, Bulletin of the Society for Descrete Variational Xα 29 (2016) 152-155. ISBN: 1346-5015.
Mega Novita and Kazuyoshi Ogasawara, Effects of Bond Lengths on the Optical Properties of Mn⁴⁺ in A₂BF₆-type Crystals, Bulletin of the Society for Descrete Variational Xα 27 (2014) 110-115. ISBN: 1346-5015.
Fatimah Alluqmani, Mega Novita, and Kazuyoshi Ogasawara, Multiplet energy level diagrams for d³ ions under D_3d symmetry in Oxides, Bulletin of the Society for Descrete Variational Xα 27 (2014) 90-93. ISBN: 1346-5015.
Eman Haji, Mega Novita, and Kazuyoshi Ogasawara, Effects of charge transfer on the centroid shift of the 4f-5d transition of Ce³⁺ in oxides and fluorides, Bulletin of the Society for Descrete Variational Xα 27 (2014) 83-86. ISBN: 1346-5015.
Fatimah Alluqmani, Mega Novita, and Kazuyoshi Ogasawara, Nonempirical Energy Level Diagrams ford³ ions in Oxides Considering Correlation Corrections, Bulletin of the Society for Descrete Variational Xα 26 (2013) 159-161. ISBN: 1346-5015.
Eman Haji, Mega Novita, and Kazuyoshi Ogasawara, Comparative Study of 4f-5d Transition Spectra of Ce³⁺ in Silicate Garnets, Bulletin of the Society for Descrete Variational Xα 26 (2013) 145-147. ISBN: 1346-5015.
Mega Novita and Kazuyoshi Ogasawara, Dependence of Optical Transition of d³ Ions on Pressure, Bulletin of the Society for Descrete Variational Xα 26 (2013) 162-165. ISBN: 1346-5015.
K. Ogasawara, T. Honma, M. Novita, H. Nagoshi, Y. Shimomura, K. Ueda, B. Hong, A. Ohishi, Sophystication of Design Technique for Mn⁴⁺ Activated Red Phosphors Based on the Local Structure Analysis around Mn⁴⁺, SPring-8 Juutensangyouriyoukadai Seikahoukokusho, 2012B1898, 2012 (Japanese).
Mega Novita, Hisashi Yoshida, and Kazuyoshi Ogasawara, Investigation of Ion Dependence of Optical Spectra for Isoelectronic 3d3 ions inα-Al₂O₃, Bulletin of the Society for Descrete Variational Xα 25 (2012) 157-159.ISBN: 1346-5015.
Mega Novita, Kazuki Higashiura, and Kazuyoshi Ogasawara, First-principles calculation of multiplet structures of Mn⁴⁺ in K₂SiF₆, K₂GeF₆, and K₂TiF_6, Bulletin of the Society for Descrete Variational Xα 24 (2011) 187-190. ISBN: 1346-5015.
Mega Novita, J Mangimbulude, and F S Rondonuwu. 2010. “Produktivitas Karotenoid Kultur Statis Rhodopseudomonas Palustris”. Proceeding of Biology National Seminar “Biodiversitas dan Bioteknologi Sumber Daya Akuatik”. Faculty of Biology UNSOED. Purwokerto. 26 June 2010. ISBN: 978-979-16109-3-3. (Indonesian)
Mega Novita, J Mangimbulude, and F S Rondonuwu. 2010. “Karakteristik Likopen Sebagai Antioksidan”. Proceeding of National Seminar “Penelitian, Sains dan Pendidikan Sains V”. FSM UKSW. Salatiga. 10 June 2010. ISSN: 2087-0922. (Indonesian)
Mega Novita, J Mangimbulude, and F S Rondonuwu. 2010. “Car-To-Bchl Singlet Energy Transfer Mechanism From Optically Forbidden 2Ag- State To Optically Active Qy State”. Proceeding of National Seminar “Penelitian, Pendidikan dan Penerapan MIPA”. FMIPA UNY. Yogyakarta. 15 May 2010. ISBN: 978-979-99314-4-3. (Indonesian)
Mega Novita, J Mangimbulude, and F S Rondonuwu. 2010. “Present Status of Carotenoid Singlet-excited States”. Proceeding of International Seminar “Natural Pigment-South East Asia”. Machung University, Malang. March, 20^th2010. ISBN : 978-602-97123-0-8.
Mega Novita, Adi Setiawan, and Didit Budi Nugroho, “Peramalan Nilai Tukar Rupiah Terhadap USD dan AUD Berdasarkan Model VAR”. Proceeding of National Seminar “Penelitian, Sains dan Pendidikan Sains IV”. FSM UKSW. Salatiga, 13 June 2009. ISBN: 978-979-1098-63-9. (Indonesian)
Mega Novita, Adi Setiawan, and Didit Budi Nugroho, “Studi Kausalitas Granger Antara Nilai Tukar Rupiah Terhadap USD dan AUD Menggunakan Analisis VAR”. Proceeding of National Seminar “Penelitian, Pendidikan dan Penerapan MIPA”. FMIPA UNY Yogyakarta 16 May 2009. ISBN: 978-979-9688-5-7. (Indonesian)

Oral Presentation

Mega Novita, Akane Ito, and Kazuyoshi Ogasawara, First-Principles Calculation on the Emission Energy Level of Ruby Based on DV-Xα Molecular Orbital Method and Ligand Field Theory, 230^th ECS Meeting, October, 2016, Honolulu, USA.
Mega Novita and Kazuyoshi Ogasawara, “Effects of Lattice Relaxation on Multiplet Energies of A₂BF₆: Mn⁴⁺”, The 2014 Symposium on Coordination Compounds as Molecular Magnetic Materials, Department of Chemistry of Kwansei Gakuin University, 11 October 2014, Sanda, Japan.
Mega Novita, Tetsuo Honma, Kyota Ueda, Byungchul Hong, Atsushi Ohishi, and Kazuyoshi Ogasawara, “First-Principles Study of Multiplet Structures of Mn⁴⁺ In Fluoride Crystals”, The 2014 International Conference on Luminescence, University of Wroclaw, 13-18 July 2014, Wroclaw, Poland.
Mega Novita and Kazuyoshi Ogasawara, “Pressure Dependence on Multiplet Energies of d³ Ions in α-Al₂O₃”, The 2013 Symposium on Coordination Compounds as Molecular Magnetic Materials, Department of Chemistry of Kwansei Gakuin University, 12 October 2013, Sanda, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Study on Novel Red Phosphors by DVME Approach”, The 26^th Annual Meeting of The Society for DV-Xα Japan, Ryukoku University, 8 August 2013, Kyoto, Japan.

Poster Presentation

Mega Novita and Kazuyoshi Ogasawara, First-Principles Calculation of 4fⁿ- 4f^n-15d Transition Energy of Trivalent Lanthanides Ions in CaF₂, The 29^th Annual Meeting of The Society for DV-Xα Japan, Tokyo University of Technology, 6-8 August 2016, Nagoya, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Effects of Bond Lengths on the Optical Properties of Mn⁴⁺ in A₂BF₆-type Crystals”, The 27^th Annual Meeting of The Society for DV-Xα Japan, Ryukoku University, 6-8 August 2014, Nagoya, Japan.
Eman Haji, Mega Novita, and Kazuyoshi Ogasawara, “Comparative Study of 4f-5d Transition Spectra of Ce³⁺ in Silicate Garnets”, The Society for DV-Xα Japan, Ryukoku University, 6-8 August 2014, Nagoya, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Prediction of Pressure Dependence of R-line Emission for d³ Ions in α-Al₂O₃ Based on First-Principles Calculations”, The 224^th ECS Meeting, The Electrochemical Society USA, 27 October – 1 November 2013, San Francisco, United States of America.
Mega Novita and Kazuyoshi Ogasawara, “Dependence of Optical Transition of d³ Ions on Pressure”, The 26^th Annual Meeting of The Society for DV-Xα Japan, Ryukoku University, 6-8 August 2013, Kyoto, Japan.
Eman Haji, Mega Novita, and Kazuyoshi Ogasawara, “Comparative Study of 4f-5d Transition Spectra of Ce³⁺ in Silicate Garnets”, The 26^th Annual Meeting of The Society for DV-Xα Japan, Ryukoku University, 6-8 August 2013, Kyoto, Japan.
Fatimah Alluqmani, Mega Novita, and Kazuyoshi Ogasawara, “Nonempirical Energy level Diagram for d3 Ions in Oxides Considering Correlation Corrections”, The 26^th Annual Meeting of The Society for DV-Xα Japan, Ryukoku University, 6-8 August 2013, Kyoto, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Investigation of Ion Dependence of Electronic Structure for 3d³ ions in Mg₂TiO₄ Based on First-Principles Calculation”, The Pacific Rim Meeting (PRiME), 7-12 October 2012, Honolulu, Hawaii, United States of America.
Mega Novita and Kazuyoshi Ogasawara, “3d³ ions in Mg₂TiO₄ as red phosphor for white LED”, The 2012 Symposium on Coordination Compounds as Molecular Magnetic Materials, Department of Chemistry of Kwansei Gakuin University, 6 October 2012, Sanda, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Investigation of Ion Dependence of Optical Spectra for Isoelectronic 3d³ ions in α-Al₂O₃”, The 25^th Annual Meeting of The Society for DV-Xα Japan, Fukuoka University, 6-8 August 2012, Fukuoka, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Calculation of Mn⁴⁺-doped Red Phosphor K₂MF₆ (M=Si, Ge, Ti) for white LED”, The 2011 Symposium on Coordination Compounds as Molecular Magnetic Materials, Department of Chemistry of Kwansei Gakuin University, 8 October 2011, Sanda, Japan.
Mega Novita and Kazuyoshi Ogasawara, “Comparative Study of Mn⁴⁺ doped Red Phosphors K₂MF₆: Mn⁴⁺ (M=Si, Ge, Ti) Based on First-Principles Calculation”, The 14^th International Density Functional Theory Conference, 29 August – 2 September 2011, Demokritos, Athens, Greece.
Mega Novita and Kazuyoshi Ogasawara, “First-Principles Calculation of Multiplet Structures Mn⁴⁺ in K₂SiF₆, K₂GeF₆, and K₂TiF₆”, The 24^th Annual Meeting of The Society for DV-Xα Japan, Shizuoka University, 8-10 August 2011, Shizuoka, Japan.

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