I'm not trying to use nickel for Ohm contact. Nickel silicide is used for ohmic contact differently from nickel, so we just want to know what difference NiSi becomes ohmic contact differently from Ni.
How NiSi is ohmic contact?
Ohm contact occurs when a semiconductor has a lower work function than a metal, doesn't it? NiSi has a larger work function than Ni, so how do you make ohm contact?
Can you tell the difference between two neutrons in an alpha particle? In one alpha particle, we know that the sum of the spins of two neutrons is zero. Can a neutron with upspin and a neutron with downspin be distinguished from each other? Or can't you tell because it's superimposed?
in a book: Electromagnetic waves (with enough energy) = γ→ e− + e+
in my opinion: Electromagnetic waves (with enough energy) = γ→ e− + e+ that's right! or Electromagnetic waves (with enough energy) = γ→ e− + e− + e+ + e+ also that's right! because There's no problem if you keep Conservation...