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cond-mat.str-el2025
Disorder driven maximum in the magnetoresistance of spin polaron systems
Tanmoy Mondal, Pinaki Majumdar
Ferromagnetic polarons are self trapped states of an electron in a locally spin polarised environment. They occur close to the magnetic in low carrier density local moment ma…
cond-mat.str-el2025
Crossover from self-trapped bound states to perturbative scattering in the Heisenberg-Kondo lattice model
Tanmoy Mondal, Pinaki Majumdar
We map out the complete transport phase diagram of the ferromagnetic Heisenberg-Kondo lattice model in two dimensions. The model involves tight-binding electrons with hopping ,…
cond-mat.str-el2025
Disorder enhanced ferromagnetic polaron formation -- and the test case of Europium Oxide
Tanmoy Mondal, Pinaki Majumdar
Europium Oxide (EuO), a low carrier density local moment ferromagnet, shows a wide variety of transport behaviour depending on preparative conditions. Some samples have a moderate…