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Spin excitations in nanographene-based antiferromagnetic spin-½ Heisenberg c...
Antiferromagnetic Heisenberg chains exhibit two distinct types of excitation spectra: gapped for integer-spin chains and gapless for half-integer-spin chains. However, in... -
Muon spin-relaxation probe of chiral spin-liquid state in YBaCo4O7
Geometrically frustrated antiferromagnets RBa(Co/Fe)4O7 (R=rare earth or Y) exhibit a weak ferromagnetic component in the high-temperature spin-liquid phase. Based on a symmetry...
