ACTA

Magnetic Properties of Spin-Ladders (A₂Cu₂O₃)_m (CuO₂)_n

M. Baran^a, H. Szymczak^a, R. Szymczak^a, S. Dyeyev^a, L. Leonyuk^b and G.-J. Babonas^c
^a Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
^bMoscow State University, 119899 Moscow, Russian Federation
^c Semiconductor Physics Institute, 2600 Vilnius, Lithuania

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Magnetization M(T) and M(H) data of single crystals of the S=1/2 quasi-one-dimensional system (A₂Cu₂O₃)_m(CuO₂)_n with various A-site constituents are compared. The studied orthorhombic, incommensurate crystals are characterized by m/n=5/7,7/10, and 9/13. The role of rare-earth ions located in A-sites is discussed.

DOI: 10.12693/APhysPolA.97.571
PACS numbers: 75.40.Cx, 75.30.Gw, 75.45.+j, 75.90.+w