@article{e62132cb62c34440aa7b9d0ef2621fd1,
title = "Fincher-Burke spin excitations and ωT scaling in insulating La1.95 Sr0.05 CuO4",
abstract = "Insulating La1.95 Sr0.05 CuO4 shares with superconducting cuprates the same Fincher-Burke spin excitations, which usually are observed in itinerant antiferromagnets. The local spectral function satisfies ωT scaling above ∼16 K for this incommensurate insulating cuprate, together with previous results in commensurate insulating and incommensurate superconducting cuprates, further supporting the general prediction for square-lattice quantum spin S=12 systems. The width of incommensurate peaks in La1.95 Sr0.05 CuO4 scales to a similar finite value as at optimal doping, strongly suggesting that they are similarly distant from a quantum critical point. They might both be limited to a finite correlation length by partial spin-glass freezing.",
author = "Wei Bao and Y. Chen and K. Yamada and Savici, {A. T.} and Russo, {P. L.} and Lorenzo, {J. E.} and Chung, {J. H.}",
year = "2007",
month = nov,
day = "28",
doi = "10.1103/PhysRevB.76.180406",
language = "English",
volume = "76",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "18",
}