## configuration-periodic-2d-cell-fixed-particles-fixed

Property Definition (short name) A common way to refer to the Property Definition. Note there may be multiple Property Definitions with the same short name, to fully distinguish between Property Definitions the full Tag URI must be used (the Property Definition ID). configuration-periodic-2d-cell-fixed-particles-fixed tag:staff@noreply.openkim.org,2015-10-12:property/configuration-periodic-2d-cell-fixed-particles-fixed Static calculation of a two-dimensional periodic cell of particles (cell fixed, particles fixed) Energy (and, optionally, forces and stresses) of a two-dimensional periodic cell of particles at zero absolute temperature with the cell and particles held fixed. Mwen Mwen 2015-10-12 Property Definition Physics Validator Property Documentation Wiki
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#### species

type string false [":"] true The element symbol for each particle.

#### unrelaxed-configuration-positions

type float true [":" 3] true The [x,y,z] coordinates of each particle. The cross product of unrelaxed-periodic-cell-vector-1' and unrelaxed-periodic-cell-vector-2' determines the positive direction for the z coordinate (assuming the right-hand rule). The x and y coordinates of all the particles should be located in the parallelogram defined by unrelaxed-periodic-cell-vector-1' and unrelaxed-periodic-cell-vector-2'.

#### unrelaxed-periodic-cell-vector-1

type float true [3] true The [x,y,z] components of periodic cell vector 1 must be aligned along the x axis of the Cartesian coordinates (i.e. define it as [a, 0, 0]), where a' is a positive constant.

#### unrelaxed-periodic-cell-vector-2

type float true [3] true The [x,y,z] components of periodic cell vector 2 must be defined as [b, c, 0], where b' is a non-negative constant and c' is a positive constant

#### unrelaxed-potential-energy

type float true [] true The potential energy of the system.

#### unrelaxed-2d-cauchy-stress

type float true [3] false The [xx,yy,xy] (i.e. [11,22,12]) components of the 2D Cauchy stress conjugate to the shape of the periodic cell.

#### unrelaxed-configuration-forces

type float true [":" 3] false The [x,y,z] components of the force on each particle. The cross product of unrelaxed-periodic-cell-vector-1' and `unrelaxed-periodic-cell-vector-2' determines the positive direction for the z component (assuming the right-hand rule).

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