15 papers
New perspective on symmetry breaking in a clean antiferromagnetic chain: Spin-selective transport and NDR phenomenon
Prabhab Patra, Santanu K. Maiti
The primary requirement for achieving spin-selective electron transfer in a nanojunction possessing a magnetic system with zero net magnetization is to break the symmetry between t…
Spintronics in antiferromagnetic helix: A new prescription
Suparna Sarkar, Santanu K. Maiti
The occurrence of a finite mismatch between the up and down spin energy channels due to the application of an electric field, leading to the generation of a polarized spin current…
Circular currents in a magnetic ring with zero net magnetization in presence of a side-coupled one-dimensional chain
Sourav Karmakar, Suparna Sarkar, Santanu K. Maiti
We investigate persistent charge and spin currents in a magnetic quantum ring threaded by an Aharonov-Bohm flux, in the presence of a side-coupled one-dimensional non-magnetic chai…
Phonon mediated spin polarization in a one-dimensional Aubry-Andre-Harper chain
Moumita Mondal, Santanu K. Maiti
A comparative study of electronic transport and spin polarization between clean and Aubry-Andre-Harper chains in the presence of electron-electron (e-e) and electron-phonon (e-ph)…
Drastic modification in thermal conductivity of TiCoSb Half-Heusler alloy: Phonon engineering by lattice softening and ionic polarization
Suman Mahakal, Avijit Jana, Diptasikha Das +5
A drastic variation (~47%) in thermal conductivity (\k{appa}) for synthesized samples (TiCoSb1+x, x=0.0, 0.01, 0.02, 0.03, 0.04, and 0.06) is observed. The lowest \k{appa} is repor…
Estimating critical disorder strength of an AAH system via thermal response
Sanchita Nandi, Santanu K. Maiti
The Aubry-André-Harper (AAH) model provides a paradigmatic platform to study localization phenomena, where a transition from a conducting to an insulating phase occurs at a critic…