Nikhil Kumar C S
Guide: Prof. Anil Prabhakar, Department of Electrical Engineering, IIT Madras
Year of Joining: 2013
Year of Completion: 2020
Research Topics: Magnonics, Spin Torque Devices
Position:PhD
Background:
- Pursued B.Tech in Electronics and Communication at IES College of Engineering, University of Calicut, Kerala, 2003-2007.
- Guest Lecturer in Government Engineering College Thrissur, Kerala, March 2008 - Feb 2010.
- Pursued Master of Science by Research (MS) in Electrical Engineering at Indian Institute of Technology Madras, 2011- 2013.
- Pursued PhD in Electrical Engineering at Indian Institute of Technology Madras, 2013 - 2020.
Thesis title:
Magnonic Devices with Feedback Stabilization.
Publications - Journals
- N. Kumar and A. Prabhakar, “Resonant spin wave excitations in a magnonic crystal cavity,” in Journal of Magnetism and Magnetic Materials, vol. 450, March 2018.
- D. Kumar, K. Konishi, N. Kumar, S. Miwa, A. Fukushima, K. Yakushiji, S. Yuasa,H. Kubota, C. Tomy, A. Prabhakar, Y. Suzuki and A. Tulapurkar, “Coherent microwave generation by spintronic feedback oscillator,” in Scientific Reports, vol.6, Article number: 30747 (2016).
- G. Venkat, N. Kumar and A. Prabhakar, “Micromagnetic and Plane Wave Analysis of an Antidot Magnonic Crystal with a Ring Defect,” in IEEE Transactions on Magnetics, vol. 50, no. 11, pp. 1-4, Nov. 2014, Art no. 7101104.
- N. Kumar, G. Venkat and A. Prabhakar, “An Iterative Solution for Spin-Wave Dispersion in a Magnonic Ring,” in IEEE Transactions on Magnetics, vol. 50, no. 9, pp. 1-6, Sept. 2014, Art no. 1300306.
- N. Kumar and A. Prabhakar, “Spin Wave Dispersion in Striped Magnonic Waveguide,” in IEEE Transactions on Magnetics, vol. 49, no. 3, pp. 1024-1028, March 2013.
Conferences
- N. Kumar, A. Prabhakar, “Phase locking, intermittency and chaos, of an array of magnonic crystal cavities driven by spin torque nano oscillators”, IEEE International Magnetic Conference, 23 - 4 - 2018.
- A. Prabhakar, G. Venkat, N.Kumar, M.Arnold and M. Malathi, “Magnonic crystals as SWASER cavities”, Presented at Magnonics 2017, Magdalen College, University of Oxford, UK.
- G.Venkat, N. Kumar, M. Arnold and A. Prabhakar, “Side band Supression in a Resonant Magnonic Crystal Cavity”, presented at 62nd Annual Conference on Magnetism and Magnetic Materials Pittsburgh, PA Fort Duquesne Blvd, Pittsburgh, PA 15222, Nov 6, 2016, USA.
- A. Prabhakar, G. Venkat, N.Kumar, M.Arnold and M. Malathi, “Magnonic crystals as SWASER cavities”, Presented at Magnonics 2017, Magdalen College, University of Oxford, UK.
- G.Venkat, N. Kumar, M. Arnold and A. Prabhakar, “Side band Supression in a Resonant M agnonic Crystal Cavity”, presented at 62nd Annual Conference on Magnetism and Magnetic Materials Pittsburgh, PA Fort Duquesne Blvd, Pittsburgh, PA 15222, Nov 6, 2016, USA.
- D. Kumar , K. Konishi, N. Kumar, S. Miwa, A. Fukushima, K. Yakushiji, S. Yuasa, H. Kubota, C. Tomy, A. Prabhakar, Y. Suzuki, A. Tulapurkar, “Coherent microwave emission from a nanomagnet using magnetic feedback”, presented at International conference on Solid State Devices and Material,(SSDM), Tsukuba International Congress Center, Japan, Sep 26-29,2016.
- N. Kumar, G. Venkat and A. Prabhakar, “Sustained spinwaves using an antidot magnonic crystal cavity”, presented at IEEE AIM Conference, Bornio, Italy, March, 14-16, 2016.
- D. Kumar , K. Konishi , S.C. Nikhil, S. Miwa , A. Fukushima, K. Yakushiji , S. Yuasa , H. Kubota, C.V. Tomy , A. Prabhakar , Y. Suzuki and A. Tulapurkar, “Large Quality factor of oscillations in MgO - based magnetic field feedback oscillator”, presented at Joint MMM-Intermag Conference, San Diego, California, January 11-15, 2016.
- G. Venkat, N. Kumar, and A. Prabhakar, “Spin wave propagation in an antidot magnonic crystal with a ring defect”, presented at INTERMAG, 2014, Dresden, Germany.
- G. Venkat, N. Kumar, A. Prabhakar,“Spin wave dispersion in permalloy nano-rings”, pretested at International conference in Magnonics 2013, Varberg Kurort(Spa) on August 4-8, 2013.
- N. Kumar, A. Prabhakar, “Spin Wave Dispersion in Striped Magnonic Waveguide”, presented at IEEE-ICMM 2012, Kaiserslautern, Germany.