22. Sapajan Ibragimov, Andrey Lyalin, Sonu Kumar, Yuriko Ono, Tetsuya Taketsugu, Maciej Bobrowski, "Theoretical design of nanocatalysts based on (Fe2O3)n clusters for hydrogen production from ammonia", Journal Chemical Physics, 162, 054305 (2025); ISSN: 0021-9606 (print)
https://doi.org/10.1063/5.0242310
21. Sonu Kumar, Karan Deep, Shagun Nag, Ranjan Kumar, "Connecting dielectric response to dominant vibrations and tolerance factors in pyrochlore oxides", Materials Today Communications, 38, 108415 (2024); ISSN: 2352-4928 (print)
https://www.sciencedirect.com/science/article/pii/S2352492824003957
20. Koki Ogawara, Osamu Inanami, Hideo Takakura, Kenichiro Saita, Kohei Nakajima, Sonu Kumar, Naoya Ieda, Masato Kobayashi, Tetsuya Taketsugu, Mikako Ogawa, "Theoretical Design and Synthesis of Caged Compounds Using X-Ray-Triggered Azo Bond Cleavage", Advanced Science, 2306586 (2024); ISSN: 2198-3844 (online)
https://onlinelibrary.wiley.com/doi/10.1002/advs.202306586
19. Dong Xia, Ken Sakaushi, Andrey Lyalin, Keisuke Wada, Sonu Kumar, Marco Amores, Hiroaki Maeda, Sono Sasaki, Tetsuya Taketsugu, and Hiroshi Nishihara, "Superior Multielectron-Transferring Energy Storage by π-d Conjugated Frameworks", Small, 18, 2202861 (2022); ISSN:1613-6810 (print) 1613-6829 (web)
https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.202202861
18. Manoj Dey, Suman Chowdhury, Sonu Kumar, and Abhishek Kumar Singh, "Quantum confinement effect on defect level of hydrogen doped rutile VO2 nanowires", Journal of Applied Physics 131, 235702 (2022);
https://doi.org/10.1063/5.0095834; ISSN: 0021-8979 (print); 1089-7550 (web)
17. Sonu Kumar, Andrey Lyalin, Zhenguo Huang, Tetsuya Taketsugu, "Catalytic Oxidative Dehydrogenation of Light Alkanes over Oxygen Functionalized Hexagonal Boron Nitride", ChemistrySelect, 7 (2022) e202103795.
https://doi.org/10.1002/slct.202103795; ISSN: 2365-6549 (online)
16. Y. Li, M. C. Babin, S. Debnath, T. Iwasa, S. Kumar, T. Taketsugu, K. R. Asmis, A. Lyalin, and D. M. Neumark "Structural Characterization of Nickel Doped Aluminum Oxide Cations by Cryogenic Ion Trap Vibrational Spectroscopy ", J. Phys. Chem. A 125 (2021) 9527–9535.
https://pubs.acs.org/doi/abs/10.1021/acs.jpca.1c07156 ; ISSN: 1520-5215(web)
15. Rui Han, Jianyong Diao, Sonu Kumar, Andrey Lyalin, Tetsuya Taketsugu, Gilberto Casillas, Christopher Richardson, Feng Liu, Chang Won Yoon, Hongyang Liu, Xudong Sun, Zhenguo Huang, Boron nitride for enhanced oxidative dehydrogenation of ethylbenzene, J. Energy Chem. 57 (2021) 477-484.
https://doi.org/10.1016/j.jechem.2020.03.027 ; ISSN: 2095-4956
14. S. Kumar*, S. Sharma*, V. Babar, and U. Schwingenschlögl, Ultralow lattice thermal conductivity in monolayer C3N as compared to graphene, J. Mater. Chem. A, 5 (2017), 20407-2041
http://pubs.rsc.org/en/content/articlelanding/2017/ta/c7ta05872a#!divAbstract ; ISSN: 2050-7488
13. S. Sharma*, S. Kumar* and U. Schwingenschlögl, Arsenene and antimonene: Two-dimensional materials with high thermoelectric figures of merit, Phys Rev Applied, 8 (2017) 044013.
https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.8.044013; ISSN: 2331-7019
12. S. Kumar and U. Schwingenschlögl, Thermoelectric performance of functionalized Sc2C MXenes, Phys. Rev B, 94 (2016) 035405.
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.035405; ISSN: 2469-9950
11. S. Kumar and U. Schwingenschlögl, Lattice thermal conductivity in layered BiCuSeO, Phys. Chem. Chem. Phys., 18 (2016) 19158-19164.
http://pubs.rsc.org/en/content/articlehtml/2016/cp/c6cp02739c; ISSN: 1463-9076
10. S. Kumar and U. Schwingenschlögl, Thermoelectric Response of Bulk and Monolayer MoSe2 and WSe2, Chem. Mater., 2015, 27 (4), pp 1278–1284.
http://pubs.acs.org/doi/abs/10.1021/cm504244b, ISSN: 1520-5002
9. Karandeep, H. C. Gupta, S. Kumar, First principles study of structural and vibrational properties of Sr2BWO6 (B = Mg, Zn) in cubic and tetragonal phases, Solid State Sciences 23 (2013) 72-78.
http://dx.doi.org/10.1016/j.solidstatesciences.2013.06.006 ; ISSN: 1293-2558
8. Karandeep, H. C. Gupta, S. Kumar, First principles study of structural and vibrational properties of Ba2YTaO6 in cubic and tetragonal phases. Journal of Alloys and Compounds, 555 (2013) 335-338.
http://dx.doi.org/10.1016/j.jallcom.2012.12.086 ; ISSN: 0925-8388
7. S. Kumar, H.C. Gupta, Karandeep, First principles study of structural, bonding, and vibrational properties of PtCoO2, PdCoO2 and PdRhO2 metallic delafossites, Journal of Physics and Chemistry of Solids, 74 (2013) 305–310.
http://dx.doi.org/10.1016/j.jpcs.2012.10.004 ; ISSN: 0022-3697
6. Karandeep, H.C. Gupta, S. Kumar, First-principles study of structural, vibrational and dielectric properties of double perovskites Ba2LnSbO6 (Ln = Sm, Gd, Dy and Y), Journal of Alloys and Compounds, 547 (2012) 81–85.
http://dx.doi.org/10.1016/j.jallcom.2012.08.106 ; ; ISSN: 0925-8388
5. S. Kumar and H. C. Gupta, First principles study of dielectric and vibrational properties of pyrochlore hafnates, Solid State Sciences, 14 (2012) 1405–1411.
http://dx.doi.org/10.1016/j.solidstatesciences.2012.08.003. ISSN: 1293-2558
4. S. Kumar and H. C. Gupta, First principles study of zone centre phonons in rare-earth pyrochlore titanates, RE2Ti2O7 (RE = Gd, Dy, Ho, Er, Lu; Y), Vibrational Spectroscopy, 62 (2012) 180–187.
doi:10.1016/j.vibspec.2012.06.001. ; ISSN: 0924-2031
3. S. Kumar and H.C. Gupta, Ab initio study of structural, bonding, and vibrational properties of AGaO2 (A = Ag, Cu) delafossites, Computational and Theoretical Chemistry 977 (2011) 78–85.
http://dx.doi.org/10.1016/j.comptc.2011.09.018 ; 2210-271X
2. H.C. Gupta, J. Singh, S. Kumar, Karandeep, N. Rani, A lattice dynamical investigation of the Raman and the infrared wavenumbers of Ba2RESbO6 (RE =Sm,Y), Physica B 405 (2010) 410–412.
http://dx.doi.org/10.1016/j.physb.2009.08.296 ; ISSN: 0921-4526
1. H.C. Gupta, J. Singh, S. Kumar, Karandeep, N. Rani, A lattice dynamical investigation of the Raman and the infrared frequencies of the Dy2Ti2O7 pyrochlore spin ice compound, Journal of Molecular Structure 937 (2009) 136–138.
http://dx.doi.org/10.1016/j.molstruc.2009.08.027 ; ISSN: 0022-2860
International/national conferences:
H.C. Gupta, S. Kumar, Ab initio Study Of Zone Centre Phonons In MB6 (M=La, Ce, Sm), AIP Conf. Proc. 1267 (2010) 856. https://aip.scitation.org/doi/10.1063/1.3482853
S. Kumar, XXII national symposium (NSU-2017) on Advances in Ultrasonics and Materials Research, at Department of Physics and Astronomical Sciences, Central University of Himachal Pradesh (CUHP), 8-10 Nov, 2017.
S. Kumar and H. C. Gupta, " First principles study of zone centre phonons in Sm2Ti2O7 Pyrochlore, international conference on Raman Spectroscopy, ICORS 2012. 13-17August 2012 at IISc Bangalore.
S. Kumar and H. C. Gupta, " First principles study of lattice dynamics in fluoride elpasolites, K2NaMF6 (M=Sc, Ga)", international conference on Current Developments in Atomic, Molecular, Optical and Nano Physics (CDAMOP2011), 14–16 Dec 2011, Delhi University, Delhi.
H.C. Gupta, S. Kumar, Karandeep, and N. Rani, “Phonons at zone center for NaGd(WO4 )2 ”, 13th International Conference on Phonon Scattering in Condensed Matter (PHONONS 2010), 18-23 Apr 2010. Taipei, Taiwan.
Workshop/Seminars:
JNCASR/SISSA/IBM school on first-principles simulations, 29 Nov to 2 Dec 2010, at JNCASR, Bengaluru
First principle and other simulation methods in condensed matter physics, Shimla, 22 March to 29 March 2010 at the Physics Department, Himachal Pradesh University
Chandigarh Science Congress -2008 (CHASCON-2008), Panjab University, Chandigarh, 2008. 14-15 March 2008.
Invited Talks/Seminars/oral presentations:
"Ultralow lattice thermal conductivity in C3N monolayer as compared to Graphene" in "Advances in Ultrasonics and materials Research" organized by NSU-2017 at Central University of Himachal Pradesh, India.
"Engineering the thermoelectric response of transition metal dichalcogenides" Physics Department, Panjab University Chandigarh, Jan 2015.
"Engineering the thermoelectric response of transition metal dichalcogenides" Physics Department, IIT Ropar, Jan 2015.
Conferences/symposium organized:
Member of the organizing committee in NSU-2017 held at the Central University of Himachal Pradesh, India.