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Energy Spectrum of Spin Fluctuations in Superconducting La2-xSrxCuO4 (0.10 < x < 0.25)
Chul-Ho Lee, Kazuyoshi Yamada, Yasuo Endoh +5
The energy spectrum of incommensurate spin fluctuations in superconducting Sr-doped La2CuO4 has been studied by inelastic neutron scattering experiments. An energy gap in the spin…
Incommensurate Geometry of the Elastic Magnetic Peaks in Superconducting La1.88Sr0.12CuO4
H. Kimura, H. Matsushita, K. Hirota +6
We report magnetic neutron scattering measurements of incommensurate magnetic order in a superconducting single crystal of La1.88Sr0.12CuO4. We find that the incommensurate wavevec…
Reentrant Spin-Peierls Transition in Mg-Doped CuGeO_3
V. Kiryukhin, Y. J. Wang, S. C. LaMarra +4
We report a synchrotron x-ray scattering study of the diluted spin-Peierls (SP) material Cu_{1-x}Mg_xGeO_3. In a recent paper we have shown that the SP dimerization attains long-ra…
Direct Observation of a One Dimensional Static Spin Modulation in Insulating La1.95Sr0.05CuO4
S. Wakimoto, R. J. Birgeneau, M. A. Kastner +9
We report the results of an extensive elastic neutron scattering study of the incommensurate (IC) static spin correlations in La1.95Sr0.05CuO4 which is an insulating spin glass at…
Freezing of anisotropic spin clusters in La1.98Sr0.02CuO4
M. Matsuda, Y. S. Lee, M. Greven +8
A spin-glass compound, LaSrCuO, shows quasi-three-dimensional magnetic ordering below 40 K. A remarkable feature is that the magnetic correlation length…
The first-order phase transition between dimerized-antiferromagnetic and uniform-antiferromagnetic phases in Cu_(1-x)M_xGeO_3
T. Masuda, I. Tsukada, K. Uchinokura +3
We have performed detailed magnetic susceptibility measurements as well as synchrotron x-ray diffraction studies to determine the temperature vs concentration ( - ) phase dia…