Magnetic and resonance properties of LiCu2O2 single crystals |
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| Authors: | A M Vorotynov A I Pankrats G A Petrakovskii K A Sablina W Paszkowicz H Szymczak |
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| Institution: | (1) L. V. Kirenskii Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 660036 Krasnoyarsk, Russia;(2) Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland |
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| Abstract: | We study the structural, magnetic, and resonance properties of LiCu2O2 single crystals grown by the spontaneous crystallization method. The data are interpreted on the assumption that the crystalline
structure of the grown single crystals is orthorhombic. Long-range antiferromagnetic order sets in at temperatures below 22.5
K, while above this temperature the dependence of the magnetic susceptibility has a shape characteristic of interacting antiferromagnetic
Heisenberg chains. We hypothesize that long-range magnetic order sets in below 22.5 K through the destruction of the ideal
ladder structure of LiCu2O2 because of partial redistribution of copper and lithium ions at the crystal lattice sites and because of the presence of
other defects in the crystalline structure.
Zh. éksp. Teor. Fiz. 113, 1866–1876 (May 1998) |
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