New spintronics material could help usher in next generation of microelectronics

As the electronics industry works toward developing smaller and more compact devices, the need to create new types of scaled-down semiconductors that are more efficient and use less power has become essential. In a study to be published in the April issue of Nature Materials (currently available online ), researchers from UCLA's Henry Samueli School of Engineering and Applied Science describe the creation of a new material incorporating spintronics that could help usher in the next generation of smaller, more affordable and more power-efficient devices. While conventional complementary metal-oxide semiconductors (CMOS), a technology used today in all types of electronics, rely on electrons' charge to power devices, the emerging field of spintronics exploits another aspect of electrons — their spin, which could be manipulated by electric and magnetic fields. "With the use of nanoscaled magnetic materials, spintronics or electronic devices, when switched off, will not have a stand-by power dissipation problem. With this advantage, devices with much lower power consumption, known as non-volatile electronics, can become a reality," said the study's corresponding author, Kang L. Wang, Raytheon Professor of Electrical Engineering at UCLA Engineering, whose team carried out the research. "Our approach provides a possible solution to address the critical challenges facing today's microelectronics industry and sheds light on the future of spintronics." "We've built a new class of material with magnetic properties in a dilute magnetic semiconductor (DMS) system," said Faxian Xiu, a UCLA senior researcher and lead author of the study.