Magnetic field- and light-driven spin molecular logic gates: A first-principles study

Thermal spin molecular logic gates modulated by an electric field

“…[13][14][15][16][17][18] In experiment, Sierra et al have detected the thermoelectric spin voltage due to the thermally driven spin-polarized currents in the FM graphene nanoribbons. [19] In theory, Zhao et al employed planar four-coordinate Fe complexes-based molecular, [20] Mn-porphyrin trimer molecular, [21] Mn ph-thalocyanine molecular, [22,23] and a hybrid molecular junction comprising a planar four-coordinate Fe molecule and a 15,16dinitrile dihydropyrene/cyclophanediene molecule [24,25] to construct thermal spin molecular Boolean logic gates like AND, NOT, XOR, and OR. All these thermal spin molecular Boolean logic gates contain metal atoms, providing the magnetic source of the devices.…”

Theoretical design of thermal spin molecular logic gates by using a combinational molecular junction

“…Very recently, with an attempt to settle this problem, we have further proposed a novel combinational molecular junction (CMJ), which contains a PFCF molecule and a photochromic molecule (15,16-dinitrile dihydropyrene (DDP)/cyclophanediene (CPD)) linked together in series by a finite single-walled armchair carbon nanotube (SWACNT) bridge. [10] Here, the photochromic molecule is respectively in the DDP/CPD form with rapid response time upon the ultraviolet (UV)/visible (VIS) photo-excitation. [11][12][13] By utilizing the magnetic field in different directions, the light of different wavelengths as input signals and the produced spin-polarized current or total current as an output signal, the spin molecular AND, OR and NOT gates are realized.…”

“…[11][12][13] By utilizing the magnetic field in different directions, the light of different wavelengths as input signals and the produced spin-polarized current or total current as an output signal, the spin molecular AND, OR and NOT gates are realized. [10] In the meantime, with the continuous miniaturization of the electronic devices, the problems resulting from the waste heat become more and more serious. Fortunately, spin caloritronics provides a favorable approach to convert untapped waste heat to electricity, [14][15][16] which increases the energy utilizing efficiency to a large extent.…”