Spintronics is a branch of Electronics where all processing are going through spin to overcome the leakage issues of semiconductor device. For spin based device it used ferromagnetic materials. As we know spin is revolving around its own axis of electron so how we can decide it has only up and down state. According to me it should have infinite number of state. But every spin based device works based on up spin and down spin such as Magnetic Tunnel junction (MTJ). Hoping for great response from dignitaries of research technocrats. Thank you