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Non-equilibrium spin dynamics in the temperature and magnetic field dependence of magnetization curves of ferrimagnetic CoFeO and its composite with BaTiO
R. N. Bhowmik, R. Ranganathan
A comparative study of the non-equilibrium magnetic phenomena (magnetic blocking, memory, exchange bias and aging effect) has been presented for ferrimagnetic CoFe$_{1.25}…
Physical properties of RIr3 (R = Gd, Tb, Ho) compounds with coexisting polymorphic phases
Binita Mondal, Shovan Dan, Sudipta Mondal +3
The binary compounds GdIr3, TbIr3 and HoIr3 are synthesized successfully and found to form in macroscopic co-existence of two polymorphic phases: C15b and AuCu3-type. The dc magnet…
Doping of Ga in antiferromagnetic semiconductor alpha-Cr2O3oxide and its effects on modified magnetic and electronic properties
R. N. Bhowmik, K. Venkata Siva, R. Ranganathan +1
The samples of Ga doped Cr2O3 oxide have been prepared using chemical co-precipitation route. X-ray diffraction pattern and Raman spectra have confirmed rhombohedral crystal struct…
Spin dynamics and frequency dependence of magnetic damping study in soft ferromagnetic FeTaC film with a stripe domain structure
B. Samantaray, Akhilesh K. Singh, A. Perumal +2
Perpendicular magnetic anisotropy (PMA) and low magnetic damping are the key factors for the free layer magnetization switching by spin transfer torque technique in magnetic tunnel…
Extraordinary Tunability of the Superexchange Interactions in Nanoparticles of the Multiferroic 0.50BiFeO3-0.50PbTiO3
Chandan Upadhyay, Pappu Kumar Harijan, Anatoliy Senyshyn +2
The coexistence and coupling of magnetic and ferroelectric orderings in single phase multiferroics has evinced enormous scientific interest as it involves breaking of time reversal…
Lattice disorder and Ferromagnetism in La0.67Ca0.33MnO3 nanoparticle
R. N. Bhowmik, Asok Poddar, R. Ranganathan +1
We study the ferromagnetism of La0.67Ca0.33MnO3 in bulk polycrystalline, nanocrystalline and amorphous phase. The structural change from crystalline phase to amorphous phase exhibi…
Unconventional relaxation in antiferromagnetic CoRhO nanoparticles
R. N. Bhowmik, R. Ranganathan
Magnetic relaxation in antiferromagnetic CoRhO nanoparticles is investigated at 2 K by cooling the sample from a temperature (70 K) well above the antiferromagnetic orderin…