TY - JOUR
T1 - Systematics of group-nonsubgroup transitions
T2 - Square to triangle transition
AU - Hatch, D. M.
AU - Lookman, T.
AU - Saxena, A.
AU - Stokes, H. T.
PY - 2001
Y1 - 2001
N2 - A variety of structural transitions in nature do not involve a group-subgroup relationship. A two-dimensional example is the transition between a square lattice and a triangular lattice, which is known to occur in vortex lattices, Wigner crystals, skyrmion lattices, colloids, diblock copolymers, etc. A three-dimensional analog is the shock-induced BCC to HCP transition in iron. We develop a systematic technique that incorporates site symmetry and yields displacive transition mechanisms and free energy forms for such structural changes. This procedure is demonstrated for the square to triangle transition.
AB - A variety of structural transitions in nature do not involve a group-subgroup relationship. A two-dimensional example is the transition between a square lattice and a triangular lattice, which is known to occur in vortex lattices, Wigner crystals, skyrmion lattices, colloids, diblock copolymers, etc. A three-dimensional analog is the shock-induced BCC to HCP transition in iron. We develop a systematic technique that incorporates site symmetry and yields displacive transition mechanisms and free energy forms for such structural changes. This procedure is demonstrated for the square to triangle transition.
UR - https://www.scopus.com/pages/publications/0035423029
U2 - 10.1103/PhysRevB.64.060104
DO - 10.1103/PhysRevB.64.060104
M3 - 文章
AN - SCOPUS:0035423029
SN - 1098-0121
VL - 64
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 6
ER -