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Adam B. Cahaya, Dr.

Adam B. Cahaya, Dr.

Dr. Adam Badra Cahaya is an Associate Professor in condensed-matter physics specializing in the interplay between fundamental quantum phenomena and practical material applications within Quantum, Magnetic, and Ionic Physics Research Group. His work is centered on Analytical Dynamics of Atoms in Materials, through which he explores Applications and Basics of Condensed-Matter Physics.

Dr. Adam Badra Cahaya received his B.Sc., M.Sc., and Dr. Sc. degrees in 2013, 2015, and 2018, respectively, from the Department of Physics, Tohoku University. His doctoral dissertation, entitled “Spin, charge and heat coupling at magnetic interfaces,” was completed under the Interdepartmental Doctoral Degree Program for Multi-Dimensional Material Science Leaders.

He conducted his doctoral research in the Theoretical Physics Group at the Institute for Materials Research under the JSPS Research Fellowship for Young Scientists.

His academic lineage is documented in international genealogy databases widely used in mathematics and theoretical physics:

He has received several recognitions, including the Satyalancana Wira Karya (2008) from the President of the Republic of Indonesia and the Young Scientist Award (2012) from the Aoba Society for the Promotion of Science.

Dr. Cahaya received multiple international distinctions in physics competitions, including a Silver Medal at the International Physics Olympiad (IPhO 2008) and Gold Medals at the Asian Physics Olympiad (APhO 2008) and the International Zhautykov Olympiad in Physics (2008), as well as a Bronze Medal at APhO 2007.

He continues to contribute to physics education by serving as a mentor and trainer for the Indonesian team in the International Physics Olympiad (IPhO), supporting the development of advanced problem-solving and theoretical physics skills among students.

2008 — Satyalancana Wira Karya (President of the Republic of Indonesia)
2012 — Young Scientist Award from Aoba Society for the Promotion of Science 青葉理学振興会奨励賞.

His research has been supported by internal funding from Universitas Indonesia and FMIPA UI, as well as external grants from international agencies including JSPS, the Indonesia Endowment Fund for Education (LPDP), and the Indonesia Toray Science Foundation.

These projects bridge fundamental theory and practical applications, particularly in spintronics, magnetic materials, and energy conversion systems.

YearFunderResearch Title
2025-2026UIStability Study of Quantum Dot Nanostructures
2025-2026UIEnvironmentally Friendly Transition Metal-Based Perovskites for Solar Energy and Medical Scintillation Applications
2024-2025UITheoretical Study of Multiferroic Properties in Magnetic Heterostructures for Energy-Efficient Memory Devices
2024-2025UIApplication of Antisymmetric Exchange Effects on Magnetic Textures at Heavy Metal Interfaces
2024-2025UITheoretical Study of Non-Centrosymmetric Structural Effects on Magnetoelectric Properties of Multiferroic Materials
2023-2024FMIPASpin–Orbit Coupling in Multiferroic Devices for Energy Efficiency
2023-2024UITheoretical Study of Antisymmetric Exchange at Heavy Metal Interfaces
2023-2024LPDPTheoretical Study of Electrical Generation in Advanced Functional Materials Using Rare-Earth Elements
2023ITSFModeling of Electrical Control of Exchange Bias for Efficient Magnetic Recording
2022-2023UITheoretical Modeling of Current Generation via Nuclear Spin
2022-2023UITheoretical Modeling of Electrical Current Generation Mechanisms via Rare-Earth Impurities
2022-2023UITheoretical Modeling of Magnetization Control Mechanisms via Interfacial Spin–Orbit Interaction
2020-2021UITheoretical Modeling of Electronic Band Structures in Semiconductors for Energy Conversion Applications
2020-2021UITheoretical Modeling of Nuclear Magnetic Resonance in Heavy Metals
2020-2021UITheoretical Modeling of Spin Transfer Torque Effects in Heavy Metals
2020-2021UITheoretical Study of Surface Impurity Effects on Magnetic Properties of Heavy Metals
2020-2021FMIPATheoretical Study of Spin Energy Transfer in Nuclear Spin-Based Batteries
2015-2018JSPSAntiferromagnetic Spin Seebeck Effect

Dr. Cahaya has received competitive international scholarships supporting advanced research in condensed-matter physics, including:

  • MEXT Scholarship (2008–2015)
  • JSPS Research Fellowship for Young Scientists (2015–2018)

These programs supported both fundamental and application-oriented research, enabling collaboration with leading international institutions.

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Research interest

Dr. Adam Badra Cahaya’s research is grounded in Analytical Dynamics of Atoms in Materials, integrating fundamental understanding with practical implementation in condensed-matter systems. His work spans quantum dynamics, many-body interactions, and electronic structure modeling, with notable contributions to spin-based electromagnetic phenomena, interfacial magnetic transport, and thermoelectric energy systems. Through this approach, he develops analytical and computational frameworks that bridge fundamental physics with functional materials and device technologies.

Highlights

  • Spin-based formulation of electromagnetic momentum and light–matter interaction
  • Analytical modeling of spin transport in magnetic interfaces
  • Design principles for thermoelectric and quantum energy conversion materials

Prospective students and collaborators interested in Applications and Basics of Condensed-Matter Physics are welcome to reach out

Basics (Fundamental Physics)

Applications (Applied Physics)

Selected Publications
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Scopus
  1. A.B. Cahaya, Zitterbewegung, momentum, and spin dynamics of electromagnetic waves in a linear dielectric medium, Phys. Rev. A  112, 033721 (2025).
  2. A.B. Cahaya, Spin current compensation from competing magnon modes in ferrimagnets, J. Phys. D: Appl. Phys. 58, 345002 (2025).
  3. S. Aji, M. A. N. Azhiim, N. I. P. Ayu, A. B. Cahaya, K. Kusakabe, M. A. Majidi, Spin current generation driven by skyrmion dynamics under magnetic anisotropy and polarized microwaves, J. Phys. D: Appl. Phys. 58, 315003 (2025).
  4. F.E.M. Rahangiar, A.B. Cahaya, M.S. Muntini, I. Anshori, and E.H. Hasdeo, “Optimal half-metal band structure for large thermoelectric performance”, Phys. Rev. B 110, 035150 (2024)
  5. M.P.M. Akhir, E. Suprayoga, and A.B. Cahaya, “Stabilization and Helicity Control of Magnetic Skyrmion”, J.Phys. D: Appl. Phys. 57, 165303 (2024)
  6. A.B. Cahaya, A.O. Leon, and M.H. Fauzi, “Spin-orbit torque on nuclear spins exerted by a spin accumulation via hyperfine interactions”, Nanotechnology 34, 505001 (2023)
  7. A.B. Cahaya, A.A. Anderson, A. Azhar, and M.A. Majidi,”Electrically controllable exchange bias via interface magnetoelectric effect”, IEEE Trans. Magn. 59 (11) 1300304 (2023)
  8. M.S. Ukhtary, A.R.T. Nugraha, A.B. Cahaya, A. Rusydi, and M.A. Majidi, “High-performance Kerr quantum battery”, Appl. Phys. Lett. 123, 034001 (2023)
  9. A.B. Cahaya and A.O. Leon, “Dzyaloshinskii-Moriya spin density by skew scattering”, Phys. Rev. B 106, L100408 (2022)
  10. A.B. Cahaya, R.M. Sitorus, A. Azhar, A.R.T. Nugraha, and M.A. Majidi, “Enhancement of spin-mixing conductance by s-d orbital hybridization in heavy metals”, Phys. Rev. B 105, 211438 (2022)
  11. A.B. Cahaya, “Enhancement of thermal spin pumping by orbital angular momentum of rare earth iron garnet”, J. Magn. Magn. Mater. 553, 169248 (2022) 
  12. M.S. Muntini, E. Suprayoga, S.A. Wella, I. Fatimah, L. Yuwana, T. Seetawan, A.B. Cahaya, A.R.T. Nugraha and E.H. Hasdeo, “Spin-tunable thermoelectric performance in monolayer chromium pnictides”, Phys. Rev. Mater. 6, 064010 (2022)
  13. A.B. Cahaya, A. Azhar, D. Djuhana and M.A. Majidi, “Effect of interfacial spin mixing conductance on gyromagnetic ratio of Gd substituted Y3Fe5O12“, Phys. Lett. A 437, 128085 (2022)
  14. A.B. Cahaya, “Adiabatic limit of RKKY range function in one dimension”, J. Magn. Magn. Mater. 547, 168874 (2022).
  15. A.B. Cahaya and M.A. Majidi, “Effects of screened Coulomb interaction on spin transfer torque”, Phys. Rev. B 103, 094420 (2021)
  16. A.B. Cahaya, A.O. Leon, M.R. Aliabad and G.E.W. Bauer, “Equilibrium current vortices in simple metals doped with rare earths”, Phys. Rev. B 103, 064433 (2021)
  17. A.B. Cahaya, A. Azhar and M.A. Majidi, “Yukawa potential for realistic prediction of Hubbard and Hund interaction parameters for transition metals”, Phys. B Condens. Matter 604, 412696 (2021)
  18. A.O. Leon, J.D.E. Castro, J.C. Retamal, A.B. Cahaya and D. Altbir, “Manipulation of the RKKY exchange by voltages”, Phys. Rev. B 100, 014403 (2019)
  19. C.N. Rangkuti, A.B. Cahaya, A. Azhar, M.A. Majidi and A. Rusydi, “Manifestation of charge/orbital order and charge transfer in temperature-dependent optical conductivity of single-layered Pr0.5Ca1.5MnO4”, J. Phys. Condens. Matter 31, 365601 (2019)
  20. A.O. Leon, A.B. Cahaya and G.E.W. Bauer, “Voltage control of rare-earth magnetic moments at the magnetic-insulatorーmetal interface”, Phys. Rev. Lett. 120, 027201 (2018)
  21. A.B. Cahaya, A.O. Leon and G.E.W. Bauer, “Crystal field effects on spin pumping”, Phys. Rev. B 96, 144434 (2017)
  22. A.B. Cahaya, O.A. Tretiakov and G.E.W. Bauer, “Spin Seebeck power conversion”, IEEE Trans. Magn. 51, 0800414 (2015)
  23. A.B. Cahaya, O.A. Tretiakov and G.E.W. Bauer, “Spin Seebeck power generators”, Appl. Phys. Lett. 104, 042402 (2014)
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