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Dr. Abhijit GHOSH

Scientist I

Staff

Electronic Materials (ELE) Department

63194738

Abhijit_Ghosh@imre.a-star.edu.sg

2 Fusionopolis Way, Innovis, #08-03, Singapore 138634


Research Details


  • Magnonic crystals: Material, nanostructure exploration & know-how development for Magnonics applications (e.g. microwave filtering). Demonstration of Magnetic frustration using rf dynamics.

  • Magnetic Skyrmions: Fundamental understanding development vis static & dynamics study. Non-reciprocity of spin waves. E-field, SOT MRAM: transport for developing (Hk, α) MRAM devices.

  • SOT of HM(Pt,Pd,Ta,W)/FM(Co,CoFeB)/MOx: Materials exploration for SOT MRAM applications. Magnetization switching, spin dependent magnetoresistance, Spin Hall studies

  • Spin pumping & Inverse spin Hall in magnetic heterostructures. Spin diffusion & spin current transport in (HM, FM, AFM). Proximity effect & Induced ferromagnetism

  • High frequency dynamics of magnetical materials and nanostructures

  • Magneto-electrical transport studies of spintreonics materials & devices

  • Nanoscale device fabrication

  • Magnonics applications: Manipulating Materials & nanostructures

  • Instrumentation: FMR, Magneotstatic surface spin wave spectroscopy, Anomalous Hall measurement

June 2018-Current

Scientist, ASTAR Institute of Materials Research and Engineering, Singapore, Topic: Exploring materials for next generation Magnonics applications, Spin orbit torque based MRAM, High frequency dynamics of Skyrmion.

 

December 2015-May 2018

Scientist, ASTAR Data storage Institute, Singapore, Topic: High frequency dynamics of Skyrmion, Spin wave spectroscopy, Dynamic characterization for MRAM stach development.

 

January 2013-Sep 2015

Post-doctoral research fellow, ICN2 Barcelona, Spain & ETH Zurich, Switzerland, Topic: Current driven

Spin orbit torque (SOT) for MRAM devices.

 

November 2009-November 2012

Doctoral research, Spintec laboratory, University of Grenoble, France, Topic: Spin pumping and spin

absorption in magnetic heterostructures.

 

November 2009-October 2012 (CASE)

MS + Internship, Missouri state University, Springfield, MO, USA.

Topic: Magneto-transport of Co doped In2O3 Diluted magnetic semiconductors.

2009–2012 Ph.D - Physics, Spin pumping and spin absorption in magnetic heterostructures.

Spintec, University of Grenoble, France. Supervisors: Dr. Ursula Ebels, (co) Prof. William E. Bailey

2007–2009 MS-Material Science, Magnetotransport of Co doped In2O3 diluted magnetic semiconductors.

Missouri state University, Springfield, MO, USA. Supervisor: Prof. Kartik Ghosh.

2005–2007 MSc-Physics, Cavity electrodynamics with semiconductor quantum dots.

Indian institute of technology Bombay, Mumbai, India. Supervisor: Prof. B.P. Singh.

2002–2005 BSc-Physics, Mathematics, Chemistry (Minors).

University of Calcutta, Kolkata, India,

"Contrat de formation par la recherche" scholarship, Spintec-University of Grenoble France, 2009

Research grant at Missouri state University Springfield, MO, USA, 2008

Merit cum means scholarship, Dept. of Phys IITB Mumbai, India, 2006

 Life Member of Magnetics society of India

  • J. Lourembam, A. Ghosh, M. Zeng, S. K. Wong, Q. J. Yap, and S. T. Lim, “Thickness-dependent interfacial magnetic anisotropy and Gilbert damping in Hf/Co20Fe60B20/MgO heterostructures”, accepted for publication in Phys. Rev. Applied, 10, 044057 (2018)

  • A. Ghosh, K. Garello, C. O. Avci, M. Gabureac, and P. Gambardella, “Interface enhanced spin-orbit torques and current-induced magnetization switching of Pd/Co/AlOx layers”, Phys. Rev. Applied 7, 014004 (2017)

  • M. Caminale, A. Ghosh, S. Auffret, U. Ebels, K. Ollefs, F. Wilhelm, A. Rogalev, and W. E. Bailey, “Spin pumping damping and magnetic proximity effect in Pd and Pt spin-sink layers”, Phys Rev B 94, (2016)

  • C. O. Avci, K. Garello, A. Ghosh, M. Gabureac, S. F.Alvarado, and P. Gambardella, “Unidirectional spin Hall magnetoresistance in ferromagnet/normal metal bilayers”, Nature Phys. 3356 (2015)

  • C.O. Avci, K. Garello, J. Mendil, A. Ghosh, N. Blasakis, M. Gabureac, M. Trassin, M. Fiebig, and P. Gambardella, “Magnetoresistance of heavy and light metal/ferromagnet bilayers”, Appl. Phys. Lett. 107, 192405 (2015)

  • A. Ghosh, S. Auffret, U. Ebels and W. E. Bailey, “Penetration Depth of Transverse Spin Current in Ultrathin Ferromagnets”, Phys. Rev. Lett. 109, 127202 (2012)

  • W E Bailey, A Ghosh, S Auffret, U Ebels , F Wilhelm, A Rogalev, “ Pd magnetism induced by indirect interlayer exchange coupling”, Phys. Rev. B 86, 144403 (2012)

  • A Ghosh, J F Sierra, S Auffret, U Ebels and W E Bailey, “Dependence of nonlocal Gilbert damping on the ferromagnetic layer type in ferromagnet/Cu/Pt heterostructures”, Appl. Phys. Lett. 98, 052508 (2011)


Last updated on : 06 Apr 2019 01:23 AM