What is the Lattice Constant? - Physics Stack Exchange
2021年2月8日 · What is a physical description of the lattice constant and how does one calculate it? From what little resources I have found, I have figured out that it has to do with the size of the atoms that comprise the lattice.
How is the lattice contant derived in a bcc unit cell?
Calculating bulk modulus from interatomic potential on cubic lattice Hot Network Questions Late 70s/Early 80s android made-for-TV movie
Distance between adjacent planes in a crystal
2016年7月21日 · As an example, consider the plane that intersects the $\pmb{a}$ axis at the second lattice site, the $\pmb{b}$ axis at the third lattice site, and the $\pmb{c}$ axis at the first lattice site. The reciprocals of $2, 3, 1$ are $\frac{1}{2}, \frac{1}{3}, 1$ , …
condensed matter - How are lattice parameters determined from ...
2015年6月24日 · If you have strain, or varying composition, you can clearly see the varying lattice constant in the close up. But the diffractometer still knows where it is in reciprocal space, and changing diffraction angle (albeit small) is showing a changing lattice parameter using the normal Bragg rules. $\endgroup$ –
What is the Lattice Constant of Iron? - Physics Forums
2011年1月25日 · The lattice constant of iron determines its crystal structure, which in turn affects its physical and mechanical properties. For example, the lattice constant affects the density, strength, and thermal conductivity of iron. How is the lattice constant of iron measured? The lattice constant of iron can be measured using various techniques such ...
homework and exercises - atomic concentration by lattice …
The number of atoms that can fit into a lattice is a known property for different crystal structures, such as bcc, fcc, hcp, etc. For your example question, both the crystal structure (diamond) and the lattice constant is known and atomic concentration can easily be calculated.
What is the correct method for finding the lattice constant of NaCl?
2012年9月16日 · In summary, the question asks for the lattice constant of NaCl, which is a simple cubic lattice with Na and Cl atoms alternating positions. Assuming that the atoms are hard spheres with nearest neighbors touching, the lattice constant can be calculated using the equation a = 2 * r, where r is the effective radius of the atoms.
Lattice constant and volume density - Physics Forums
2015年9月22日 · The lattice is a body-centered lattice with a lattice constant of 5.89 angstroms. The conversation also mentions calculating the volume density of the atoms using the surface density equation, but there seems to be some confusion about the number of atoms and the type of crystal structure being discussed.
Wavelength and Lattice constant - Physics Stack Exchange
2019年5月25日 · Combining these two, we need a wavelength slightly smaller than the lattice parameter so that we can actually verify our findings. Otherwise, if we cannot see destructive interference as well, and we cannot claim we have found a constructive interference either, and then there won't be a lattice parameter to be calculated.
Primitive unit cell of fcc - Physics Stack Exchange
2015年10月6日 · Instead just displace the cell a small distance along the two lattice vectors while keeping the size constant: and it's now obvious that the cell contains two lattice points so it's a compound cell. This always works, and in any number of dimensions though of course it's harder to visualise in 3D.