Phase diagram of the spin-1/2 J1-J2-J3 Heisenberg model on the square lattice with ferromagnetic J1
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Sindzingre, Philippe
[1
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Seabra, L.
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Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, EnglandUniv Paris 06, Lab Phys Theor Mat Condensee, UMR 7600, CNRS, Case 121,4 Pl Jussieu, F-75252 Paris, France
Seabra, L.
[2
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Shannon, Nic
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Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, EnglandUniv Paris 06, Lab Phys Theor Mat Condensee, UMR 7600, CNRS, Case 121,4 Pl Jussieu, F-75252 Paris, France
Shannon, Nic
[2
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Momoi, Tsutomu
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RIKEN, Condensed Matter Theory Lab, Wako, Saitama 3510198, JapanUniv Paris 06, Lab Phys Theor Mat Condensee, UMR 7600, CNRS, Case 121,4 Pl Jussieu, F-75252 Paris, France
Momoi, Tsutomu
[3
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[1] Univ Paris 06, Lab Phys Theor Mat Condensee, UMR 7600, CNRS, Case 121,4 Pl Jussieu, F-75252 Paris, France
Phase diagram of the S = 1/2, J(1)-J(2)-J(3) Heisenberg model on the square lattice with ferromagnetic 1(st) neighbor and antiferromagnetic 2(nd) and 3(rd) neighbor interactions is studied by means of exact diagonalization and spin wave calculations. Quantum fluctuations are shown to induce phases that are not present classically and a shift in the wave vector of the spiral phases. Results are compared with recent experimental data.