BaCuSi2O6がハンパープルで、BaCo2V2O8がイジング。 Giant Spin Canting in the S
1=2 Antiferromagnetic Chain CuPMNO32H2O2n Observed by 13C-NMR Magnetic-field inducedgap and staggered susceptibility in the S = 1/2 chain (PMcenterdotCu(NO3)…