TY - JOUR
T1 - Topological Order in an Antiferromagnetic Tetratic Phase
AU - Abutbul, Daniel
AU - Podolsky, Daniel
N1 - Publisher Copyright: © 2022 American Physical Society.
PY - 2022/6/24
Y1 - 2022/6/24
N2 - We study lattice melting in two-dimensional systems of spinful particles that interact antiferromagnetically. We argue that, for strong spin interactions, single lattice dislocations are forbidden by magnetic frustration. This leads to a melting scenario in which a tetratic phase, containing free dislocation pairs and bound disclinations, separates the solid from the liquid. We demonstrate this phase numerically in a system of hard spheres confined between parallel plates, where spins are represented by the heights of the spheres. In the tetratic phase, the spins are shown to be as antiferromagnetically ordered as allowed by their spatial configuration.
AB - We study lattice melting in two-dimensional systems of spinful particles that interact antiferromagnetically. We argue that, for strong spin interactions, single lattice dislocations are forbidden by magnetic frustration. This leads to a melting scenario in which a tetratic phase, containing free dislocation pairs and bound disclinations, separates the solid from the liquid. We demonstrate this phase numerically in a system of hard spheres confined between parallel plates, where spins are represented by the heights of the spheres. In the tetratic phase, the spins are shown to be as antiferromagnetically ordered as allowed by their spatial configuration.
UR - http://www.scopus.com/inward/record.url?scp=85133509391&partnerID=8YFLogxK
U2 - https://doi.org/10.1103/PhysRevLett.128.255501
DO - https://doi.org/10.1103/PhysRevLett.128.255501
M3 - مقالة
C2 - 35802454
SN - 0031-9007
VL - 128
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
M1 - 255501
ER -