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Integer vs. Half-Integer-Spin Antiferromagnetic Chains, an Experimental Test of the Haldane Conjecture: Excitations in the S = 5/2 System CsMnI 3 vs. Excitations in the S = 1 CsNiCl 3

M. Enderle, Kazuhisa Kakurai, K. N. Clausen +3 more

Integer vs. Half-Integer-Spin Antiferromagnetic Chains, an Experimental Test of the Haldane Conjecture: Excitations in the S = 5/2 System CsMnI3 vs. Excitations in the S = 1 CsNiCl3, M. Enderle, K. Kakurai, K. N. Clausen, T. Inami, H. Tanaka, M. Steiner

Europhysics Letters (EPL)Mar 20, 199414 citations

Excitation of CsMnI┣D23┫D2 (S=5/2) in the Magnetic Field in Comparison to CsNiCl┣D23┫D2 (S=1): A Test of the Haldane Conjecture (共著)

秀数田中, HIDEKAZU TANAKA

Jan 1, 19950 citations

Magnetization plateaus in spin chains : Haldane gap for half-integer spins

Masaki Oshikawa

Jan 1, 19970 citations

Experimental studies of integer spin antiferromagnetic chains

Garrett E. Granroth

Aug 1, 19980 citations

Quantum Spin Dynamics of an S=3/2 Heisenberg Antiferromagnetic Chain-Inelastic Pulsed Neutron Scattering from CsVCl┣D23┫D2- (共著)

秀数田中, HIDEKAZU TANAKA

Jan 1, 19950 citations

A note on Haldane’s conjecture

Li-Hua Pan, Chang-De Gong

According to Haldane’s conjecture, there is a spin gap of the excitation spectrum in integer Heisenberg spin chains whereas half-integer spin chains have a gapless excitation spectrum. In an earlier publication (Hung and Gong 2005 Phys. Rev. B 71 054413), the Haldane gap and other properties of the spin-1 system are explained using a spin-1/2 alternating bond chain model. The ferromagnetic–ferromagnetic–antiferromagnetic Heisenberg spin-1/2 chain is expected to behave similarly to the uniform spin-3/2 Heisenberg chain for strong ferromagnetic coupling. And the general nonuniform spin-1/2 chain may be used to explain the properties of the integer and half-integer high spin- S chains, consistently. In this paper, we provide a detailed numerical verification for the above problems.According to Haldane’s conjecture, there is a spin gap of the excitation spectrum in integer Heisenberg spin chains whereas half-integer spin chains have a gapless excitation spectrum. In an earlier publication (Hung and Gong 2005 Phys. Rev. B 71 054413), the Haldane gap and other properties of the spin-1 system are explained using a spin-1/2 alternating bond chain model. The ferromagnetic–ferromagnetic–antiferromagnetic Heisenberg spin-1/2 chain is expected to behave similarly to the uniform spin-3/2 Heisenberg chain for strong ferromagnetic coupling. And the general nonuniform spin-1/2 chain may be used to explain the properties of the integer and half-integer high spin- S chains, consistently. In this paper, we provide a detailed numerical verification for the above problems.

Journal of Physics Condensed MatterApr 25, 20083 citations

Integer versus Half-Integer-Spin Antiferromagnetic Chains, an Experimental Test of the Haldane Conjecture. Excitations in the S=5/2 System CsMnI┣D23┫D2 versus Excitations in the S=1 CsNiCl┣D23┫D2(共著)

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Integer versus Half-Integer-Spin Antiferromagnetic Chains, an Experimental Test of the Haldane Conjecture. Excitations in the S=5/2 System CsMnI┣D23┫D2 versus Excitations in the S=1 CsNiCl┣D23┫D2(共著)

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