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7 papers · 2 filters
Strength of the symmetry spin filtering effect in magnetic tunnel junctions
Sergey V. Faleev, Stuart S. P. Parkin, Oleg N. Mryasov
Strength of the the symmetry spin filtering effect (as defined by the asymptotic behavior of the tunneling magnetoresistance (TMR) at large barrier thicknesses induced by this effe…
Prediction of the Weyl semimetal in the orthorhombic MoTe2
Yan Sun, Shu-Chun Wu, Mazhar N. Ali +2
We investigate the orthorhombic phase (Td) of layered transition-metal-dichalcogenide MoTe as a Weyl semimetal candidate, which was discovered to be a superconductor in our rec…
Generation of high-frequency strain waves during femtosecond demagnetization of Fe/MgO films
T. Henighan, M. Trigo, S. Bonetti +22
We use femtosecond time-resolved hard x-ray scattering to detect coherent acoustic phonons excited during ultrafast laser demagnetization of bcc Fe films. We determine the lattice…
Dirac Cone Protected by Non-Symmorphic Symmetry and 3D Dirac Line Node in ZrSiS
Leslie M. Schoop, Mazhar N. Ali, Carola Straßer +4
Materials harboring exotic quasiparticles, such as Dirac and Weyl fermions\cite{xu2015discovery,borisenko2015time,weng2015weyl,xu2015observation}, have garnered much attention from…
Brillouin zone spin filtering mechanism of enhanced TMR and correlation effects in Co(0001)/h-BN/Co(0001) magnetic tunnel junction
Sergey V. Faleev, Stuart S. P. Parkin, Oleg N. Mryasov
The 'Brillouin zone spin filtering' mechanism of enhanced tunneling magnetoresistance (TMR) is described for magnetic tunnel junctions (MTJ) and studied on an example of the MTJ wi…
Site-dependent magnetism of Ni adatoms on MgO/Ag(001)
Oliver R. Albertini, Amy Y. Liu, Barbara A. Jones
We examine the adsorption of a single Ni atom on a monolayer of MgO on a Ag substrate using DFT and DFT+U computational approaches. We find that the electronic and magnetic propert…