Metamagnetism of cuprates R2Cu2O5

Competing magnetic interactions in (Dy0.375Y0.625)2Cu2O5 solid solution studied by EPR

“…Paper investigated previously [4][5][6]. The susceptibility follows the Curie-Weiss law almost exactly down to the transition temperature T N = 11 K, with a negative value of the Curie-Weiss temperature Θ = -18 K (antiferromagnetic interaction) [4].…”

Competing interactions and dimensional crossover in (Er0.5Y0.5)2Cu2O5 studied by EPR

“…At T N = 11.5 K a sharp maximum in the susceptibility gives a strong indication of antiferromagnetic ordering. The magnetic properties of Er 2 Cu 2 O 5 have been investigated previously [4,5,[11][12][13][14][15]. The susceptibility follows the Curie-Weiss law exactly down to the transition temperature of T N = 27 K, with a negative value of the Curie-Weiss temperature Θ = −4 K [4].…”

“…exhibit metamagnetic behaviour below Neel temperature [4]. The magnetic properties of Y 2 Cu 2 O 5 have been studied extensively [4][5][6][7][8][9][10]. Above 120 K the magnetic susceptibility of this compound is well described by the Curie-Weiss law with a positive Curie temperature, θ = 38.5 K, indicating a considerable contribution of ferromagnetic interaction [4].…”

Rare-earth cuprates for ceramic colouring application—An investigation

“…The R 2 Cu 2 O 5 type of compound crystallizes in the orthorhombic space group Pna2 1 [4][5][6]. In this case Cu-O pyramids (CuO 5 ) are joined by the common edges Cu (1) Cu (2) O 8 dimers.…”

“…There are two non-equivalents four-fold low symmetry positions for the R 3+ ions in a unit cell. R (1) O 6 and R (2) O 6 distorted octahedra are united in a three-dimensional network. The R 2 BaCuO 5 type of compound (except R = Nd) crystallizes in the orthorhombic space group Pbnm [1,2].…”