3 papers
cond-mat.mes-hall2025
Persistent Charge and Spin Currents in a Ferromagnetic Hatano-Nelson Ring
Sourav Karmakar, Sudin Ganguly, Santanu K. Maiti
We investigate persistent charge and spin currents in a ferromagnetic Hatano-Nelson ring with anti-Hermitian intradimer hopping, where non-reciprocal hopping generates a synthetic…
cond-mat.dis-nn2025
Reentrant localization in a quasiperiodic chain with correlated hopping sequences
Sourav Karmakar, Sudin Ganguly, Santanu K. Maiti
Quasiperiodic systems are known to exhibit localization transitions in low dimensions, wherein all electronic states become localized beyond a critical disorder strength. Interesti…
cond-mat.mes-hall2025
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…