INDIAN ASSOCIATION FOR THE CULTIVATION OF SCIENCE


Dr. Subham Majumdar

Professor
Department of Solid State Physics
Indian Association for the Cultivation of Science
2A and B Raja S. C. Mullick Road
Kolkata  700 032
India
Phone:+91 33 2473 4971 [ext. 1317 (off) & , 2659 (lab)]
Fax: +91 33 2473 2805
E-mail : sspsm2 [at ] iacs.res.in
 

 


         Academic affiliations
   Research Interests
 

                Experimental Condensed Matter Physics, with special interest in magnetic and  electronic properties of rare-earth and 3d transition metal based intermetallic alloys as well as metal oxides. The present research topics involve,

                A major thrust of our research is to study the first order magneto-structural behaviour. Ferromagnetic shape memory alloys are very important materials where the key to their functional behavior lies in the field and temperature driven martensitic-type magneto-structural instability. Our aim is to study intriguing magnetic, electronic and structural properties of these alloys near the instability, particularly originated from phase-coexistence, metastability and glassiness.

                Different rare-earth based intermetallic alloys and compounds are also studied. Here our aim is to look for various functional properties including magneto-caloric effect and magneto-resistance.

                We also look for fundamental magnetic interactions in transition metal oxides having low dimensional magnetic character. These include spin chain compounds, spin ladders, layered magnetic systems, and spin clusters. The main interest here to understand phenomena related to quantum magnetism, such as dimerization, one dimensional spin correlations, spin fluctuations, spin frustration, and quantum criticality.

 


Ph. D. Students

 

 

  Selected List of  Publications 

 
  • Magnetic and electric properties of CaMn7O12 based multiferroic compounds: effect of electron dopingJ Sannigrahi, S Chattopadhyay, D Dutta, S Giri and S Majumdar , J. Phys.: Condens. Matter 25, 246001 (2013).

  • Structural domain and spin-ordering-induced glassy magnetic phase in single-layered manganite Pr0.22Sr1.78MnO4,  S. Chattopadhyay, S. Giri, and S. Majumdar, Eurphys. Lett. 98, 27004 (2012).

  • Investigation of weak itinerant ferromagnetism and critical behavior of Y2Ni7, A. Bhattacharyya, Deepti Jain, V. Ganesan, S. Giri, and S. Majumdar, Phys. Rev. B 84, 184414 (2011).

  • Spin-glass like state in GdCu: Role of phase separation and magnetic frustration, A. Bhattacharyya, S. Giri, and S. Majumdar, Phys. Rev. B 83, 134427 (2011).

  • Kinetics of the field-induced resistivity jump in Ni2Mn1.36Sn0.64-xGax alloys, S. Chatterjee, S. Giri, S. K. De, and S. Majumdar, Phys. Rev. B 81, 214441 (2010).

  • Reentrant-spin-glass state in Ni2Mn1.36Sn0.64 shape-memory alloy, S. Chatterjee, S. Giri, S. K. De and S. Majumdar, Phys. Rev. B 79, 092410 (2009).

  • Giant magnetoresistance and large inverse magnetocaloric effect in Ni2Mn1.36Sn0.64 alloy, S. Chatterjee, S. Giri, S. Majumdar, and S. K. De, J. Phys. D: Appl. Phys. 42,           065001 (2009).

  •  Thermomagnetic irreversibility in Ni2Mn1.36Sn0.64 shape memory alloy, S. Chatterjee, S. Giri, S. Majumdar, and S. K. De, Phys. Rev. B 77, 224440 (2008).

  •  Metastability and magnetic memory effect in Ni2Mn1.4Sn0.6, S. Chatterjee, S. Giri, S. Majumdar, and S. K. De, Phys. Rev. B 77, 012404 (2008).

Updated on May 31, 2013