3 years ago

Inducing critical phenomena in spin chains through sparse alternating fields

Inducing critical phenomena in spin chains through sparse alternating fields
M. Cerezo, R. Rossignoli, N. Canosa, C. A. Lamas
We analyze the phase diagram of the exact ground state (GS) of spin-$s$ chains with ferromagnetic XXZ couplings under $n$-alternating field configurations, i.e., sparse alternating fields having nodes at $n−1$ contiguous sites. It is shown that such systems can exhibit a nontrivial magnetic behavior...

Publisher URL: http://link.aps.org/doi/10.1103/PhysRevB.99.014409

Open URL: http://arxiv.org/pdf/1809.00743

DOI: 10.1103/PhysRevB.99.014409

Open access
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