In your first reply you mentioned that computers are based on binary logic - on or off. I thought you were getting at quantum computing where you can have a combination of the two.
From the article - "One is the discovery of a material that allows electrons to switch states really quickly that could improve magnetic random access memory speeds by a factor of thousand." So, yeah, that's essentially what I said.
If the difference is that a single electron can store on or more bits then this is definitely equivalent to a Turing Machine.The only thing a Turing Machine specifies for storage is a sequence of symbols. How you create the symbols, whether by on/off bits or an electron that can represent multiple bits, is completely irrelevant as to whether or not is is the equivalent of a TM.