crystal directions


by aaaa202
Tags: crystal, directions
aaaa202
aaaa202 is offline
#1
Dec7-13, 04:25 PM
P: 995
I found the following picture of the Wurtzite and Zincblende structure as viewed from a specific direction. I could do with some help on which basis vectors are chosen for either the [1 1 1] or [0 0 0 1]. Now I am pretty sure that the last one refers to a basis where we have three vectors separated by a 120degree angle in the plane and then one vector along the c-axis of the hexagonal crystal. But I don't see what other system of basis vectors you would choose to make [1 1 1] match [0 0 0 1]. Because that's what [1 1 1]/[0 0 0 1] means here right? - that they are reprsenting the direction on the picture in two different bases.
Attached Thumbnails
crystaldirections.png  
Phys.Org News Partner Physics news on Phys.org
Chameleon crystals could enable active camouflage (w/ video)
Atomic switcheroo explains origins of thin-film solar cell mystery
X-ray laser experiment explores how specially shocked material gets stronger
DrDu
DrDu is offline
#2
Dec8-13, 01:25 AM
Sci Advisor
P: 3,378
I think they simply mean direction [111] in case of zincblende and [0001] in the case of wurtzite.


Register to reply

Related Discussions
Directions and EMF Introductory Physics Homework 1
single crystal and poly crystal metal Materials & Chemical Engineering 8
elementary crystal cell or the whole crystal? Atomic, Solid State, Comp. Physics 1
Help with directions! Precalculus Mathematics Homework 2
directions in the sky General Astronomy 2