Lithium doped graphene as spintronic devices
arXiv:1512.02431 · doi:10.1039/C5RA27922D
Abstract
Generating spintronic devices has been a goal for the nano-science. We have used density function theory to determine magnetic phases of single layer and bilayer lithium doped graphene nanoflakes. We have introduced graphene flakes as single molecular magnets, spin on/off switches and spintronic memory devices. To aim this goal, adsorption energies, spin polarizations, electronic gaps, magnetic properties and robustness of spin-polarized states have been studied in the presence of dopants and second layers. We find that for bilayer SMMs with two layers of different sizes the highest occupied molecular orbital and the lowest unoccupied molecular orbital switch between the layers. Based on this switch of molecular orbitals in a bilayer graphene SMM, spin on/off switches and spintronic memory devices could be achievable.
References in corpus (14)
- Energy Band Gap Engineering of Graphene Nanoribbons
- Energy Gaps in Graphene Nanoribbons
- Half-Metallic Graphene Nanoribbons
- Andreev reflection and Klein tunneling in graphene
- Magnetism in graphene nano-islands
- Electronic transport and quantum Hall effect in bipolar graphene p-n-p junction
- Evidence for superconductivity in Li-decorated monolayer graphene
- Half-metallic graphene nanodots
- Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
- Observation of excited states in a graphene quantum dot
- Spin States in Graphene Quantum Dots
- Electronic triple-dot transport through a bilayer graphene island with ultrasmall constrictions
- Transport in a three-terminal graphene quantum dot in the multi-level regime
- Spin and charge transport in graphene-based spin transport devices with Co/MgO spin injection and spin detection electrodes