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Physics
Atomic and Condensed Matter
What Are the Dimensions of a 1x1 Unit Cell on a Cu(110) Surface?
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[QUOTE="Eduard1, post: 1717585, member: 110037"] Hi All, Let's consider a Copper bulk material. This one can be reproduce (ad infinitum) by using a cubic unit cell (fcc) of lattice constant [B]a[/B]. Let's cut this bulk along the (110) plane and expose the Cu(110) surface to the vacuum. My question is: which are the x and y dimensions of a (1x1) unit cell ? After my calculations the 1x1 unit cell, on the Cu(110) surface, will have the x and y dimensions of [B]a[/B] and [B]a*sqrt(2)[/B]. However, according to my solid state course, the x and y dimensions of a 1x1 unit cell, on the Cu(110) surface, are of [B]a[/B] and [B]a*sqrt(2)/2[/B]. I simply can not understand from where it is coming the division to 2. I would expect to have only [B]a*sqrt(2)[/B] as this is a cube face diagonal (and we cut along a cube face diagonal to get the 110 surface). Can anyone help me with an explanation? With all the best wishes, Eduard [/QUOTE]
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What Are the Dimensions of a 1x1 Unit Cell on a Cu(110) Surface?
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