Frustration Induced Exotic Phases in Axial Anisotropic Spin-1/2 Chain
by
DrManoranjan Kumar(Princeton University)
→
Asia/Kolkata
A304 (Colaba Campus)
A304
Colaba Campus
Description
Recent experimental realizations of axial anisotropic spin-1/2 chains
have intensified the research in one-dimensional spin-1/2 systems. The
combination of anisotropy and frustration induced by competition
between the nearest and next nearest neighbor exchanges in these
systems gives rise to many interesting exotic phases like bond order
wave, Neel and chiral vector wave phases in the ground state. In
this talk, scaling of the order parameters and the Quantum phase
diagram of a model Hamiltonian with axial anisotropic nearest and next
nearest neighbor spin exchange interactions are discussed. A new
Quantum phase diagram of this model Hamiltonian is constructed using a
combination of the exact results of finite system sizes and density
matrix renormalization group method.