Magnetic-Field Induced Spin-Peierls Instability in Strongly Frustrated Quantum Spin Lattices
Magnetic-Field Induced Spin-Peierls Instability in Strongly Frustrated Quantum Spin Lattices
For a class of frustrated antiferromagnetic spin lattices (in particular, the square-kagom\'e and kagom\'e lattices) we discuss the impact of recently discovered exact eigenstates on the stability of the lattice against distortions. These eigenstates consist of independent localized magnons embedded in a ferromagnetic environment and become ground states in high …