activity
19982022
most citedA phenomenological model for magnetoresistance in granular polycrystalline colossal magnetoresistive materials: the role of spin polarised tunnelling at the grain boundaries

111 citations · 226 across the 13 of their papers we have counts for

collaborators
Showing 2010Show all

5 papers · 1 filter

cond-mat.str-el2010

Size-Induced Exchange Bias Effect and Griffiths Phase in Electron Doped Sm0.09Ca0.91MnO3 manganites

S. K. Giri, T. K. Nath

We report here the magnetic properties of electron-doped Sm1-xCaxMnO3 manganites with the doping level of x=0.91. Exchange bias effect has been observed in Sm0.09Ca0.91MnO3 nanoman…

cond-mat.mtrl-sci2010

Transition from a ferromagnetic insulating to a ferromagnetic metallic state in nanoparticles of Nd0.8Sr0.2MnO3 : Study of the electronic - and magneto - transport properties

S. Kundu, T. K. Nath

A detailed investigation of the electronic - and magneto - transport properties of Nd0.8Sr0.2MnO3 with the variation of grain size (down to 42 nm) is presented here. Interestingly,…

cond-mat.str-el2010★ 2 cited

Emergence Of Ferromagnetism In Nanoparticles Of Antiferromagnetic Nd0.4Sr0.6MnO3

S. Kundu, T. K. Nath

We have investigated the magnetic state of Nd0.4Sr0.6MnO3 with the variation of its grain size down to average nanometric diameter (40 nm). The bulk sample is antiferromagnetic (AF…

cond-mat.str-el2010★ 17 cited

Probing the magnetic state by linear and non linear ac magnetic susceptibility measurements in under doped manganite Nd0.8Sr0.2MnO3

S. Kundu, T. K. Nath

We have thoroughly investigated the entire magnetic states of under doped ferromagnetic insulating manganite Nd0.8Sr0.2MnO3 through temperature dependent linear and non linear comp…

cond-mat.str-el2010★ 1 cited

On the question of metallicity and ferromagnetism in charge ordered insulating Nd0.5Sr0.5MnO3 nanoparticles

S. Kundu, T. K. Nath, A. K. Nigam +2

The fascinating phenomenon of destabilization of charge/orbital order in Nd0.5Sr0.5MnO3 with the reduction of grain size is critically investigated. Based on our magnetic and trans…