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Doping investigations of the spin-Peierls-system CuGeO3

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Weiden, M., Richter, W., Geibel, C., & Steglich, F. (1996). Doping investigations of the spin-Peierls-system CuGeO3. Czechoslovak journal of physics, 46, 1973-1974. doi:10.1007/BF02570978.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-E789-B
Abstract
We investigated the effect of doping CuGeO3 with Zn, Ni, Mn and Mg on the Cu-site, and Al, Si, Ga, As, In, Sn, Sb and Ti on the Ge-site. The lattice parameters show a linear dependence on doping. The spin-Peierls (SP) transition temperature T-SP decreases linearly with increasing substitution, the slope depending on the dopant. For increasing Zn-content, a Neel-like groundstate which exhibits spin-flop-behaviour appears after the disappearence of the SP-ground-state. Si- and Ti-doped samples exhibit a similar phase in co-existence with the SP-groundstate.