Publications 

From IISER

Few-Layer SrRu2O6 Nanosheets as Non-Van der Waals Honeycomb Antiferromagnets: Implications for Two-Dimensional Spintronics  Suvidyakumar Homkar, Bharat Chand, Shatruhan Singh Rajput, Sandeep Gorantla, Tilak Das, Rohit Babar, Shivprasad Patil, Rüdiger Klingeler, Sunil Nair, Mukul Kabir, A. Bajpai*, ACS Applied Nano Materials, 2021.

Signatures of spin-phonon coupling in Hematite Crystallites through Dielectric and Raman spectroscopy Namrata Pattanayak, Jitender Kumar, Partha Pratim Patra, G. V. Pavan Kumar, A. Bajpai*. EuroPhysics Letters, 134 , 47003, 2021.

Filled Carbon Nanotubes as Anode Materials for Lithium‐Ion Batteries.  E. Thauer, A. Ottmann, P. Schneider, L. Möller, L. Deeg, R. Zeus, F. Wilhelmi, L. Schlestein, C. Neef, R. Ghunaim, M. Gellesch, C. Nowka, M. Scholz, M. Haft, S. Wurmehl, K. Wenelska, E. Mijowska, A. Kapoor, A. Bajpai, S. Hampel, R. Klingeler. Molecules 25, 1064 , 2020.

Weak Ferromagnetism and Time-Stable Remanence in Hematite: Effect of Shape, Size and Morphology
Namrata Pattanayak, Arpan Bhattacharyya, Shruti Chakravarty and A. Bajpai*.  Journal of Physics: Condensed Matter , 2019. 

Enhanced Magnetism & Time - Stable Remanence at the Interface of Hematite and Carbon Nanotubes. A. Kapoor, A.B Dey, C. Garg and A. Bajpai*.    accepted for publication in  " Nanotechnology" 2019

3d Transition metals and oxides within carbon nanotubes by co-pyrolysis of metallocene & camphor: High filling efficiency and self organized structures, A Kapoor, N Singh, A.B. Dey, A.K.Nigam and A Bajpai*. Carbon 132, 733-745, 2018.

Quasi-static remanence in Dzyaloshinskii-Moriya interaction driven weak-ferromagnets and piezomagnets, N Pattanayak, A Bhattacharyya, A.K.Nigam, Sang-Wook Cheong and A Bajpai*. Phys. Rev. B, 96, 104422, 2017.

A carbon-nanotube based nanofurnace for in-situ  restructuring of a magnetoelectric oxide.  A.Bajpai*, Z Aslam, S. Hampel, R. Klingeler and N Grobert.   Carbon, 114, 291-300, 2017.


Selected Publications  

  1. The filling of carbonnanotubes with magnetoelectric Cr2O3,  A. Bajpai*, S. Gorantla, M. Löffler, S. Hampel, M.H. Rümmeli, J. Thomas, M. Ritschel, T. Gemming, B. Büchner, R. Klingeler. Carbon, 50, 1706, 2012.    
  2. Tuning the magnetic properties of iron filled carbon nanotubes. F.C. Dillon, A. Bajpai, A. Koós, S. Downes, Z. Aslam, N. Grobert. Carbon, 50, 3674, 2012.
  3. On the influence of nano meter thick antiferomagnetic surface layer on ferromagnetic CrO2 grain. P. Das, A. Bajpai, Y. Ohno, H. Ohno and J Mueller. Journal of Applied Physics, 112, 053921, 2012.
  4. Interface driven magnetoelectric effects in granular CrO2, A. Bajpai*, P. Borisov, S. Gorantala, R. Klingeler, J. Thomas, T. Gemming, W. Kleemann and B. Buechner, Europhysics Letters 91, 17006 (2010).
  5. Unusual field dependence of remanent magnetization in granular CrO2: possible role of piezomagnetism. A. Bajpai*, R. Klingeler, N. Winzent, A. K. Nigam, S-W Cheong, and B. Buechner. Journal of Physics: Condensed Matter 22, 096005 (2010).
  6. Observation of fluctuation induced tunneling conductance in polycrystalline CrO2.   A. Bajpai* and A. K. Nigam, Phys. Rev. B; 75, 064403, (2007).
  7. Unusual features in low field susceptibility, their explanation and evidence of superparamagnetism in polycrystalline Li0.5Ni0.5O sample. A. Bajpai and A. Banerjee, Phys. Rev. B 62, 8996 (2001).
  8. Characterization of metastable magnetic systems using non linear susceptibility. A. Bajpai and A. Banerjee, J. Phys. Cond. Mat. 13, 637 (2001).
  9. An automated susceptometer for the measurement of linear and non linear ac susceptibility. A. Bajpai and A. Banerjee, Rev. Sci. Instrum., 68, 4075, (1997)


Book Chapter

Probing magnetic phases in different systems using linear and non Linear Susceptibility. A. Banerjee, A. Bajpai and Sunil Nair, Pages 43-70, Frontiers in Magnetic Materials, (ed. A.V. Narlikar) Springer Verlag (2005).

Patent

Chromium dioxide and composites of chromium dioxide and other oxides of chromium such as CrO2/Cr2O3 and CrO2/Cr2O5.A.Bajpai and A.K. Nigam, Indian Patent # 204533 ; 
US Patent # 7276226