As
The four basis functions
![]() | (3.7) |
Here,
![]() | (3.10) |
Under these conditions, the new Hamiltonian can be written as
![]() | (3.11) |
with
![]() | (3.12) |
![]() | (3.13) |
The wave functions corresponding to the Hamiltonian Equation 3.11 can be
expressed as Φ
By considering
![]() | (3.14) |
![]() | (3.15) |
Here, tan . Thus, when
, the large components of the
four-components’ wave functions (Ψ
![]() | (3.16) |
where
The small component is considerably suppressed by the application of
the shear strain
The spin injection orientation also has a strong effect on the components of
the wave functions. For a fixed in-plane wave vector (