About Me

Haldar Soumyajyoti

I am a researcher focusing on computational material physics, magnetism, spintronics, 2D materials, defects & impurities, and atomistic spin dynamics. I have extensive academic research experience in the field of computational material science involving diverse class of materials using state of the art quantum mechanical and multiscale materials modelling.

My Career

Post-doc at University of Kiel, Kiel, Germany

Since April 2017, I am a post-doc in Spintronics Theory Group of Prof. Stefan Heinze at the Institute of Theoretical Physics and Astrophysics of University of Kiel.

Apr. 2017 - Current
Post-doc

Post-doc at Uppsala University, Uppsala, Sweden

After finishing PhD, from December 2016 to March 2017, I was a post-doc in Materials Theory Division at Department of Physics and Astronomy, Uppsala University. I was working with Prof. Biplab Sanyal.

Dec. 2016 - Mar. 2017
Post-doc

PhD at Uppsala University, Uppsala, Sweden

In November 2016, I graduated from a PhD from the Uppsala University, Sweden. My thesis was entitled "Influence of defects and impurities on the properties of 2D materials". My PhD supervisors were Prof. Biplab Sanyal and Prof. Olle Eriksson.

Apr. 2012 - Nov. 2016
PhD candidate

System Administrator at Uppsala University, Uppsala, Sweden

From April 2012 to March 2017, during my stay at the Uppsala University, I have also worked part time as System Administrator for the Materials Theory division at the Department of Physics and Astronomy.

Apr. 2012 - Mar. 2017
System Administrator

Junior Research Fellow, University of Pune, Pune, India

From July 2009 to January 2012, I was Junior Research Fellow at Centre for Modeling and Simulation, University of Pune. I was working with Prof. Dilip Kanhere in a Indo-Swiss joint research programme funded by DST and SNSF.

Jul. 2009 - Jan. 2012
Junior Research Fellow

MSc in Physics at University of Pune, Pune, India.

In June 2009, I graduated from a Masters of Science in Physics. My final thesis "Simulation Studies of Defect in Semiconductor Clusters".

Jul. 2007 - Jun. 2009
MSc student candidate

BSc in Physics at University of Calcutta, Kolkata, India.

In June 2007, I graduated from a Bachelors of Science in Physics from St. Xavier's College.

Aug. 2004 - Jun. 2007
BSc student candidate

My Skills

Research

Technical

Ab initio Calculations/Materials Modelling

Python


Magnetism/Molecular Magnets

Fortran


Spintronics

C/C++


2D Materials/Surfaces

Linux/Unix


Atomistic Spin Dynamics

Matlab/Mathematica


Molecular Dynamics

Latex


Defects/Impurities

HTML/CSS


Electronic Transport/ NEB Methods

Bash Scripting


My Publications

2019

  • Tunneling anisotropic magnetoresistance of Pb and Bi adatoms and dimers on Mn/W(110): A first-principles study

    S. Haldar, M. Gutzeit, and S. Heinze
    Physical Review B 100, 094412 (2019) [Link]
  • Ligand Effects on the Linear Response Hubbard U: the Case of Transition Metal Phthalocyanines

    I. E. Brumboiu, S. Haldar, J. Lüder, O. Eriksson, H. C. Herper, B. Brena, and B. Sanyal
    Journal of Physical Chemistry A 123, 3214 (2019) [Link]
  • Preparation and electronic properties of clean superconducting Nb(110) surfaces

    A. B. Odobesko, S. Haldar, S. Wilfert, J. Hagen, J. Jung, N. Schmidt, P. Sessi, M. Vogt, S. Heinze, and M. Bode
    Physical Review B 99, 115437 (2019) [Link]
  • Skyrmion lifetime in ultrathin films

    S. von Malottki, P. F. Bessarab, S. Haldar, A. Delin, and S. Heinze
    Physical Review B (Rapid Communications) 99, 060409(R) (2019) [Link]

2018

  • Noncollinear spin density of an adatom on a magnetic surface

    S. Haldar and S. Heinze
    Physical Review B (Rapid Communications) 98, 220401(R) (2018) [Link]
  • Comparative study of electronic and magnetic properties of iron and cobalt phthalocyanine molecules physisorbed on two-dimensional MoS2 and graphene

    S. Haldar, S. Bhandary, H. Vovusha, and B. Sanyal
    Physical Review B 98, 085440 (2018) [Link]
  • First-principles prediction of sub-10-nm skyrmions in Pd/Fe bilayers on Rh(111)

    S. Haldar, S. von Malottki, S. Meyer, P. F. Bessarab, and S. Heinze
    Physical Review B (Rapid Communications) 98, 060413(R) (2018) [Link]
  • Suppression of the Verwey Transition by Charge Trapping

    C. Antoniak, D. Schmitz, A. Warland, M. Darbandi, S. Haldar, S. Bhandary, B. Sanyal, O. Eriksson, and H. Wende
    Annalen der Physik 530, 1700363 (2018) [Link]

2016

  • Metal-Free Photochemical Silylations and Transfer Hydrogenations of Benzene, Polycyclic Aromatic Hydrocarbons and Graphene

    R. Papadakis , H. Li, J. Bergman, A. Lundstedt, K. Jorner, R. Ayub, S. Haldar, B. Jahn, A. Denisova, B. Zietz, R. Lindh, B. Sanyal, H. Grennberg, K. Leifer, and H. Ottosson
    Nature Communications 7, 12962 (2016) [Link]
  • Influence of Electron Correlation on the Electronic Structure and Magnetism of Transition-Metal Phthalocyanines

    I. E. Brumboiu, S. Haldar, J. Lüder, O. Eriksson, H. C. Herper, B. Brena, and B. Sanyal
    Journal of Chemical Theory and Computations 12, 1772 (2016) [Link]
  • Site-selective local fluorination of graphene induced by focused ion beam irradiation

    H. Li, L. Daukiya, S. Haldar, A. Lindblad, B. Sanyal, O. Eriksson, D. Aubel, S. Hajjar-Garreau, L. Simon, K. Leifer
    Scientific reports 6, 19719 (2016) [Link]
  • Energetic stability, STM fingerprints and electronic transport properties of defects in graphene and silicene

    S. Haldar, R. G. Amorim, B. Sanyal, R. H. Scheicher, and A. R. Rocha
    RSC Advances 6, 6702 (2016) [Link]

2015

  • Systematic study of structural, electronic, and optical properties of atomic-scale defects in the two-dimensional transition metal dichalcogenides MX2 (M = Mo, W; X = S, Se, Te)

    S. Haldar, H. Vovusha, M. K. Yadav, O. Eriksson, and B. Sanyal
    Physical Review B 92, 235408 (2015) [Link]

2014

  • The dipole moment of the spin density as a local indicator for phase transitions

    D. Schmitz, C. Schmitz-Antoniak, A. Warland, M. Darbandi, S. Haldar, S. Bhandary, O. Eriksson, B. Sanyal, and H. Wende
    Scientific Reports 4, 5760 (2014) [Link]
  • A real-space study of random extended defects in solids: Application to disordered Stone–Wales defects in graphene

    S. Chowdhury, S. Baidya, D. Nafday, S. Halder, M. Kabir, B. Sanyal, T. Saha-Dasgupta, D. Jana, and A. Mookerjee
    Physica E 61, 191 (2014) [Link]
  • Fen (n = 1 - 6) clusters chemisorbed on vacancy defects in graphene: Stability, spin-dipole moment, and magnetic anisotropy

    S. Haldar, B. S. Pujari, S. Bhandary, F. Cossu, O. Eriksson, D. G. Kanhere, and B. Sanyal
    Physical Review B 89, 205411 (2014) [Link]

2013

  • Designing Fe Nanostructures at Graphene/h-BN Interfaces

    S. Haldar, P. Srivastava, O. Eriksson, P. Sen, and B. Sanyal
    Journal of Physical Chemistry C 117, 21763 (2013) [Link]

2012

  • Improved gas sensing activity in structurally defected bilayer graphene

    Y. Hajati, T. Blom, S. H. M. Jafri, S. Haldar, S. Bhandary, M. Z. Shoushtari, O. Eriksson, B. Sanyal, and K. Leifer
    Nanotechnology 23, 505501 (2012) [Link]
  • Functionalization of edge reconstructed graphene nanoribbons by H and Fe: A density functional study

    S. Haldar, S. Bhandary, S. Bhattacharjee, O. Eriksson, D. G. Kanhere, and B. Sanyal
    Solid State Communications 152, 1719 (2012) [Link]
  • Magnetic impurities in graphane with dehydrogenated channels

    S. Haldar, D. G. Kanhere, and B. Sanyal
    Physical Review B 85, 155426 (2012) [Link]

2011

  • Metallic clusters on a model surface: Quantum versus geometric effects

    S. A. Blundell, S. Haldar, and D. G. Kanhere
    Physical Review B 84, 075430 (2011) [Link]

2010

  • A systematic study of electronic structure from Graphene to Graphane

    P. Chandrachud, B. S. Pujari, S Haldar, B. Sanyal, and D. G. Kanhere
    Journal of Physics: Condensed Matter 22, 465502 (2010) [Link]

Book Chapters

  • Defects in Graphene and its derivatives. In PK Nayak, Recent Advances in Graphene Research

    S. Haldar and B. Sanyal
    InTech, 2016. [Link]
  • Ab Initio Studies on the Hydrogenation at the Edges and Bulk of Graphene. In L. Ottaviano, V Morandi, GraphITA 2011: Selected papers from the Workshop on Fundamentals and Applications of Graphene

    S. Haldar , S. Bhandary, P. Chandrachud, B. S. Pujari, M. I. Katsnelson, O. Eriksson, D. Kanhere, and B. Sanyal
    Springer Berlin Heidelberg, 2012. [Link]

Thesis

  • Influence of impurities and defects on the properties of 2D materials

    S. Haldar Doctor of Philosophy (PhD) at Uppsala University, Sweden, 2016 [Thesis]
  • Fe Adatoms on 2D Surfaces: Influence of Defects and Interfaces

    S. Haldar Licentiate of Philosophy (LiC) at Uppsala University, Sweden, 2014 [Thesis]
  • Simulation Studies of Defect in Semiconductor Clusters

    S. Haldar Master in Science in Physics at University of Pune, 2009 [Thesis]

© 2019 Soumyajyoti Haldar