Molecular spintronics

Several molecular spintronic devices have been proposed, including molecular spin valves (where a spin-polarised current from a magnetic 

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Molecular Spintronic Devices on the Base of [TbPc2]° SIMs... 

Figure 8.17 The main experimental geometries [6] in molecular spintronics via Direct coupling (a) asymmetric, using a conducting tip and a planar substrate and (b) symmetric.

Emberly EG, Kirczenow G (2002) Molecular spintronics spin-dependent electron transport in molecular wires. Chem Phys 281 (2—3) 311—324... 

Bogani L, Wemsdorfer W (2008) Molecular spintronics using single-molecule magnets. Nat Mater 7(3) 179-186... 

Rocha AR, Garcia-suarez VM, Bailey SW, Lambert CJ, Ferrer J, Sanvito S (2005) Towards molecular spintronics. Nat Mater 4(4) 335-339... 

To date, a relatively small number of materials have been explored in a molecular spintronics device and much remains to be understood. For example, the couphng between the molecular layer and the magnetic electrodes is believed to play a very significant role due to the discrete nature of the molecule s HOMO and LUMO, in contrast to the band properties inherent in a continuous-lattice material. The energies of the frontier orbitals with respect to the Fermi level of the electrodes, the broadening of the frontier orbitals into (narrow) bands and the orientation-dependent orbital overlap between molecule and electrode will all contribute to the transport of spins across the interface. Study of the magnetic properties of molecule surface systems is, therefore, highly important and may also lead to new types of spintronic devices. 

In more recent times, the field has increasingly focused on topics where molecular materials have an advantage over continuous-lattice solids. Such studies can exploit the modular synthesis of molecular materials, whereby different molecules with differing functions can be combined to form a hybrid material with interacting magnetic and/or conducting and/ or optical properties. This is leading to new fields such as molecular spintronics, multifunctional and switchable materials where... 

Molecular spintronics based on single-molecule magnets composed of multiple-decker phthalocyaninato terbium(III) complex 1207 1154. Molecular switches as photocontrollable smart receptors 12CSR4010. Organic—inorganic hybrid materials Metallacalixarenes. Synthesis and appHcations 13CCR2192. 

Sanvito, S. (2011) Molecular spintronics. Chemical Society Reviews, 40, 3336-3355. 

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