Abstract
Plate-like stoichiometric crystals of Ag-doped LiCu2O2 have been grown by slowly cooling Li2CO3·4(1 – x)CuO·4xAgNO3 (0 ≤ x ≤ 0.5) melts. X-ray single crystal diffraction has shown that the crystals are isostructural with LiCu2O2 and contain around 5 at % Ag (relative to the Cu atoms). The addition of silver to lithium cuprate crystals significantly increases their electrical conductivity but has little effect on the temperature behavior of their magnetic moment. The possible substitution mechanism is determined which supports Ag+ ↔ Cu+, rather than Ag+ ↔ Li+ in the Ag-doped LiCu2O2 crystals.
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