TY - JOUR
T1 - Coherent behaviour without magnetic order of the triangular lattice antiferromagnet NiGa2S4
AU - Nakatsuji, Satoru
AU - Nambu, Yusuke
AU - Onuma, Keisuke
AU - Jonas, Seth
AU - Broholm, Collin
AU - Maeno, Yoshiteru
PY - 2007/4/11
Y1 - 2007/4/11
N2 - We present experimental evidence for the unconventional coherent state in two dimensions, found in the geometrically frustrated antiferromagnet NiGa 2S4 with a triangular Bravais lattice. Despite strong antiferromagnetic coupling, S ≤ 1 spins only show nanoscale order at low temperatures. Thermodynamic measurements, however, indicate a gapless linearly dispersive mode and suggest coherence beyond the two-spin correlation length.
AB - We present experimental evidence for the unconventional coherent state in two dimensions, found in the geometrically frustrated antiferromagnet NiGa 2S4 with a triangular Bravais lattice. Despite strong antiferromagnetic coupling, S ≤ 1 spins only show nanoscale order at low temperatures. Thermodynamic measurements, however, indicate a gapless linearly dispersive mode and suggest coherence beyond the two-spin correlation length.
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U2 - 10.1088/0953-8984/19/14/145232
DO - 10.1088/0953-8984/19/14/145232
M3 - Article
AN - SCOPUS:33947657965
SN - 0953-8984
VL - 19
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 14
M1 - 145232
ER -