A printable organic polymer that assembles into chiral structures when printed has enabled researchers to reliably measure the amount of charge produced in spin-to-charge conversion within a spintronic material at room temperature. The polymer's tunable qualities and versatility make it desirable not only for less expensive, environmentally friendly, printable electronic applications, but also for use in understanding chirality and spin interactions more generally.
Spintronic devices are electronic devices that harness the spin of an electron, rather than its charge, to create energy-efficient current used for data storage, communication, and computing. Chiral materials refer to materials that cannot be imposed on their mirror image—think of your left and right hands, for example. If you lay your left hand over your right, the finger positions are reversed. That is chirality.
Chirality in spintronic materials allows designers to control the direction of spin within the material, known as the "chirality-induced spin selectivity (CISS)" effect. The CISS effect occurs when charge current flows along the chiral axis in a chiral material, producing spin—or charge-to-spin conversion—without needing ferromagnetic elements. Charge-to-spin conversion is necessary for memory storage in computing devices.
To read more, click here.