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

  1. 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.
  2. 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).
  3. 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.
  4. 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.
  5. 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

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. N. Kumar, A. Prabhakar, “Spin Wave Dispersion in Striped Magnonic Waveguide”, presented at IEEE-ICMM 2012, Kaiserslautern, Germany.