217 citations · 3.6k across the 102 of their papers we have counts for
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Critical behaviour in
S. Mukherjee, P. Raychaudhuri, A. K. Nigam
We have studied the critical behaviour in near the paramagnetic-ferromagnetic transition temperature. We have analysed our dc magnetisation data near the…
The effect of the total density of states at Fermi level on spin polarised tunnelling in granular La0.55Ho0.15Sr0.3MnO3
P. Raychaudhuri, A. K. Nigam, R. Pinto +2
We study the spin polarised tunnelling mechanism through magnetisation and magnetoresistance in the granular polycrystalline colossal magnetoresistive manganite, La0.55Ho0.15Sr0.3M…
Metal-Insulator Transition and Ferromagnetism in the Electron Doped Layered Manganites La2.3-xYxCa0.7Mn2O7 (x=0,0.3,0.5)
P. Raychaudhuri, C. Mitra, A. Paramekanti +3
Bulk samples of La2.3-xYxCa0.7Mn2O7, x=0,0.3,0.5, with layered perovskite structure have been synthesized and investigated with respect to their electrical, electronic and magnetic…
A phenomenological model for magnetoresistance in granular polycrystalline colossal magnetoresistive materials: the role of spin polarised tunnelling at the grain boundaries
P. Raychaudhuri, T. K. Nath, A. K. Nigam +1
It has been observed that in bulk and polycrystalline thin films of collossal magnetoresistive (CMR) materials the magnetoresistance follows a different behaviour compared to singl…
Magnetic field dependent variable range hopping behaviour in resistivity at low temperatures in polycrystalline colossal magnetoresistive manganites: evidence of spin polarised tunnelling
P. Raychaudhuri, P. Taneja, S. Sarkar +3
It has been observed that the low temperature magnetoresistance behaviour in polycrystalline colossal magnetoresistive (CMR) manganites differ significantly from the single crystal…