EE is a huge field. It's hard to keep up with new developments even if you have a broad foundation. That being said, memtransistors and memristors have been the

EE is a huge field. It's hard to keep up with new developments even if you have a broad foundation. That being said, memtransistors and memristors have been theorized and subsequently developed in research for quite some time now. Memrsistors were first theorized in the 50s and then in the 70s were proposed to be a fourth fundamental electrical circuit element alongside resistors, capacitors, and inductors.