Spintronics-Info: the spintronics experts

Researchers from the University of Texas in Dallas developed an all-carbon spin logic design for a switch that could be the basis of carbon spin logic devices.

The design is based on graphene nanoribbons and carbon nanotubes, which in conjunction can be used to create cascaded logic gates that are not physically linked. The communication between the gates happens via an electromagnetic wave (and does not use any physical movement of electrons), it is anticipated that communication will be much quicker - with the potential for terahertz clock speeds. The size of these logic gates will be much smaller than silicon based gates.

Researchers from Brown University in collaboration with researchers from Japan developed a way to induce an inverted magnetocapacitance effect - this is a new phenomenon that could benefit future spintronics devices. The researchers say that Magnetocapcitos could be useful to make magnetic sensors and adding an inverse effect may allow for greater design freedom.

To achieve this effect, the researchers used different materials to build a quantum tunneling junction. The image above shows two electrodes - made from Fe₃O₄ and Fe. The patterns indicate that Fe₃O₄ has the inverse spinel structure with the same crystal orientation of the MgO substrate, while Fe takes polycrystalline structure.

Researchers from the University of Utah demonstrated that organic-inorganic hybrid perovskites are a promising material class for spintronics applications. These perovskite materials feature two contradictory properties - easily controlled electron spin and long spin lifetime (up to a nanosecond). This is a unique combination of two highly sought after properties for spintronics devices.

The specific material used in this research is the hybrid perovskite methyl-ammonium lead iodine (CH₃NH₃PbI₃). In their study, a thin film of this material was placed in front of an ultrafast laser that was used to set the electron's spin orientation and also observe the spin precession.

Researchers from the NUS discovered that manipulating the electron spin lowers the contact resistance in graphene electronics.

Graphene is an excellent conductor, but metal-graphene interfaces suffer from large electrical resistance. The researchers have shown that edga-contacted device geometries in metallic-graphene interfaces feature some of the lowest contact resistances reported to date - significantly lower than in surface-contracted interfaces. The researchers explain that this is due to the different behavior of electron spins in these geometries.

Researchers from the Institut Néel in France and the Karlsruhe Institute of Technology in Germany developed a non-destructive method to continuously read out the state of a single electron spin. The technique is based on the exchange interaction between the spin and a nearby readout quantum dot.

The quantum-dot material is made from a single terbium-two phthalocyanine ligands (Tb-Pc2) molecular magnet embedded in transistor geometry. The QD is cooled down to 40 mK, and at that temperature it can be used to measure electron transport through the ligands, which behave as a readout quantum dot.

Spintronics developed NVE Corporation reported its financial results for Q1 2017. Revenues reached $6.85 million (up 12% from Q1 2016), due to 23% increase in product sales (offset by 49% decrease in contract R&D revenues). net income increased 16% to $3.03 million.

NVE recently introduced three new and improved products; a low-field angle sensor, a new spintronics mangetometer sensor (which is the world's smallest high-performance integrated circuit analog sensor) and the world's smallest high performance isolated network transceiver.