Highly Textured 001 BiSb And Materials for Making Same

A method of forming a spin-orbit torque (SOT) device, the method comprising:

• depositing an amorphous material on a substrate, the amorphous material being selected from the group consisting of:
• B, Al, Si, SiN, Mg, Ti, Sc, V, Cr, Mn, Y, Zr, Nb, AlN, C, Ge, and combinations thereof;
• exposing the amorphous material to air to form an amorphous material oxide surface on the amorphous material;
• and
• depositing a first BiSb layer on the amorphous material oxide surface, the first BiSb layer having a (012) orientation.

A method of forming a spin-orbit torque (SOT) device, the method comprising:

• depositing an amorphous material on a substrate, the amorphous material being selected from the group consisting of:
• B, Al, Si, SiN, Mg, Ti, Sc, V, Cr, Mn, Y, Zr, Nb, AlN, C, Ge, and combinations thereof;
• forming an amorphous material oxide surface on the amorphous material;
• depositing a first BiSb layer on the amorphous material oxide surface;
• depositing a first free layer over the first BiSb layer;
• depositing a second free layer over the first free layer;
• and
• depositing a second BiSb layer on the second free layer,
• wherein:
• the first BiSb layer has a (001) orientation and the second BiSb layer has a (012) orientation;
• or
• the first BiSb layer has a (012) orientation and the second BiSb layer has a (001) orientation.