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arXiv · 0807.2094

Numerical study of the frustrated ferromagnetic spin-1/2 chain

S. Mahdavifar
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Abstract

The ground state phase diagram of the frustrated ferromagnetic spin-1/2 chain is investigated using the exact diagonalization technique. It is shown that there is a jump in the spontaneous magnetization and the ground state of the system undergos to a phase transition from a ferromagnetic phase to a phase with dimer ordering between next-nearest-neighbor spins. Near the quantum transition point, the critical behavior of the ground state energy is analyzed numerically. Using a practical finite-size scaling approach, the critical exponent of the ground state energy is computed. Our numerical results are in good agreement with the results obtained by other theoretical approaches.

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S. Mahdavifar. 2012-07-25. Numerical study of the frustrated ferromagnetic spin-1/2 chain. https://doi.org/10.1088/0953-8984%2F20%2F33%2F335230

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