Influence of a nonmagnetic impurity on the properties of the quasi-one-dimensional antiferromagnet CsNiCl3

Site-dilution in the quasi-one-dimensional antiferromagnetSr2(Cu1−xPdxKojima1, Yamanobe2, Eisaki3 et al. 2004Phys. Rev. B680491View full textAdd to dashboardCite

“…The quantum mechanical calculation 18 proposes that the impurity concentration should be scaled by J / JЈ rather than by ͱ J / JЈ which is proposed in the spin-wave expansion. 13 We adopted the JЈ / J scaling to the horizontal axis of Fig. 7 which yields the solid line from the quantum mechanical calculation.…”

“…The effect of site dilution to the long-range Néel order has been investigated in a few quasi-one-dimensional antiferromagnets, such as, Cs͑Ni 1−x Mg x ͒Cl 3 which is a S =1 material 13 and ͑CH 3 ͒ 4 N͑Mn 1−x Cd x ͒Cl 3 [Cd-doped tetramethylammonium manganese trichloride (TMMC)] which is a S =5/2 material. 14,15 The Néel temperature monotonously decreases as a function of the nonmagnetic impurity concentration x, and the result was compared with the theoretical estimate based on the spin-wave expansion and the meanfield approximation.…”

Impurity-Induced Ordered Phases in Quasi-One-Dimensional Spin-Gap Systems

“…54) shows that the transition temperature of Cs(Ni 1−x Mg x )Cl 3 to the AF phase decreases monotonically with the Mg concentration x. This indicates that even if the hightemperature behavior is similar to the Haldane-gap state, when the true ground state is an ordered state, the transition temperature decreases with increasing impurity concentration.…”

“…The impurity effect was studied by Sosin et al 54) Figure 10 of Ref. 54) shows that the transition temperature of Cs(Ni 1−x Mg x )Cl 3 to the AF phase decreases monotonically with the Mg concentration x.…”

Preparation of Crystalline Hydrates for Low-Temperature Physics

“…Nonmagnetic hydrous salts, e.g., the carnallites MMgCl 3 · 6 H 2 O (M = , K + , Rb + , Cs + ), can be used to prepare anhydrous dilute quasi-one-dimensional antiferromagnets [6,7].…”