6 papers
Negative Differential Resistance and Ultra-High TMR in Altermagnetic Tunnel Junctions
Sajjan Sheoran, Luke Keenan, Declan Nell +1
Altermagnets can replace ferromagnets in tunnel junctions, yielding large tunneling magnetoresistance, ultrafast switching, and low-power functionality. While most studies explore…
A non-equilibrium quantum transport framework for spintronic devices with dynamical correlations
Declan Nell, Milos Radonjic, Ivan Rungger +3
Two-terminal spintronic devices remain challenging to model under realistic operating conditions, where the interplay of complex electronic structures, correlation effects and bias…
Non-equilibrium correlation effects in spin transport through the 2D ferromagnet FeGeTe
Declan Nell, Stefano Sanvito, Andrea Droghetti
Understanding non-equilibrium spin transport through 2D ferromagnets is a theoretical challenge, as correlations produce a complex electronic structure with coexisting itinerant an…
Spin-dependent transport in FeGaTe and FeGeTe (=3-5) van der Waals ferromagnets for magnetic tunnel junctions
Anita Halder, Declan Nell, Akash Bajaj +2
We present a systematic first-principles investigation of linear-response spin-dependent quantum transport in the van der Waals ferromagnets FeGeTe, FeGeTe, FeG…
Effect of dynamical electron correlations on the tunnelling magnetoresistance of Fe/MgO/Fe(001) junctions
Declan Nell, Stefano Sanvito, Ivan Rungger +1
We employ dynamical mean-field theory (DMFT) combined with density functional theory (DFT) and the non-equilibrium Green's function technique to investigate the steady-state transp…
Half-metallic transport and spin-polarized tunneling through the van der Waals ferromagnet FeGeTe
Anita Halder, Declan Nell, Antik Sihi +3
The recent emergence of van der Waals (vdW) ferromagnets has opened new opportunities for designing spintronic devices. We theoretically investigate the coherent spin-dependent tra…