I have just been confronted with understanding the scattering geometry in Raman experiment.(adsbygoogle = window.adsbygoogle || []).push({});

Several papers show the backscattering geometry in wurtzite structure like z(x,-x)-z.

I think that the outside the braket means the parallel to the c-axis.

is that right?

but I do not understand the inside the braket.

what is the differences between x(y,y)-x,x(z,z)-x, and x(z,y)-x?

sometimes, I can see another expression like z(x,x)-z+z(x,y)-z.

could anyone help me to understand that expression!!!!

thank you so much

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# The scattering geometry

Can you offer guidance or do you also need help?

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