Kai Wu is an assistant professor in the Department of Electrical & Computer Engineering at Texas Tech University in Lubbock, TX, United States. His research interests include the synthesis of magnetic nanomaterials, fabrication of magnetic nanodevices, micromagnetic simulation, development of point-of-care medical devices based on magnetic biosensors, and magnetic neuron stimulation and recording. Jian-Ping Wang is a professor in the Department of Electrical and Computer Engineering at the University of Minnesota, Minneapolis, MN, United States. His research interests include nanomagnetism and quantum spintronics with a focus on searching, fundamentally understanding, and fabricating novel magnetic materials and quantum spintronic devices.