A method of forming a non-volatile resistance variable device includes forming
a first conductive electrode material on a substrate. A metal doped chalcogenide
comprising material is formed over the first conductive electrode material. Such
comprises the metal and AxBy, where "B" is selected from
S, Se and Te and mixtures thereof, and where "A" comprises at least one element
which is selected from Group 13, Group 14, Group 15, or Group 17 of the periodic
table. In one aspect, the chalcogenide comprising material is exposed to and HNO3
solution. In one aspect the outer surface is oxidized effective to form a layer
comprising at least one of an oxide of "A" or an oxide of "B". In one aspect, a
passivating material is formed over the metal doped chalcogenide comprising material.
A second conductive electrode material is deposited, and a second conductive electrode
material of the device is ultimately formed therefrom.