What does this term mean (language/argot)

fluidistic

In several papers I read "L1₁ type Co-Pt ordered alloy" (see http://jap.aip.org/resource/1/japiau...sAuthorized=no, http://iopscience.iop.org/1742-6596/200/10/102002, http://www.sciencedirect.com/science...22024893903757).
What exactly is meant by L1₁?
Google seems to lead me only on a few of these papers.

tiny-tim

hi fluidistic!

i think it means rhombohedral,

see http://cst-www.nrl.navy.mil/lattice/struk/l1_1.html

fluidistic

Quote by tiny-tim

hi fluidistic!

i think it means rhombohedral,

see http://cst-www.nrl.navy.mil/lattice/struk/l1_1.html

Thank you very much tiny-tim! I've plotted the position of these atoms in VMD to visualize them in 3d.
Another question for anyone who knows: when they say

Quote by papers

Ag composition is around 50 at. %

what do they mean by . %? Do they simply mean that there's 50% of Ag in the sample? This looks a rather strange way of saying it.

tiny-tim

Ag composition is around 50 at. %

i'm guessing … could "at." be short for "atoms"?

Useful nucleus

at. % denotes percentage based on the number of atoms (also moles). While w% denotes percentage based on the weight.

fluidistic

Thank you infinitely guys. I wouldn't have figured it out on my own.

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fluidistic Recognitions: Gold Member	What does this term mean (language/argot) In several papers I read "L1₁ type Co-Pt ordered alloy" (see http://jap.aip.org/resource/1/japiau...sAuthorized=no, http://iopscience.iop.org/1742-6596/200/10/102002, http://www.sciencedirect.com/science...22024893903757). What exactly is meant by L1₁? Google seems to lead me only on a few of these papers.

tiny-tim Blog Entries: 27 Recognitions: Gold Member Homework Help Science Advisor	hi fluidistic! i think it means rhombohedral, see http://cst-www.nrl.navy.mil/lattice/struk/l1_1.html

Useful nucleus Recognitions: Gold Member	at. % denotes percentage based on the number of atoms (also moles). While w% denotes percentage based on the weight.