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Updated: Oct 2, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Absence of edge localized moments in the doped spin-Peierls system CuGe1-xSixO3
J Kikuchi1, T Matsuoka, K Motoya
1Department of Physics, Science University of Tokyo, Yamazaki, Noda, Chiba 278-8510, Japan. kikuchi@ph.noda.sut.ac.jp
Abstract:
We report the observation of nuclear quadrupole resonance (NQR) of Cu from the sites near the doping center in the spin-Peierls system CuGe 1-xSixO3. The signal appears as the satellites in the Cu NQR spectrum, and has a suppressed nuclear spin-lattice relaxation rate indicative of a singlet correlation rather than an enhanced magnetic correlation near the doping center. Signal loss of Cu nuclei with no neighboring Si is also observed. We conclude from these observations that the doping-induced moments are not in the vicinity of the doping center but rather away from it.
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