Static and dynamic magnetic properties of K3CrO4

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:537

Article

Kulish, Liliia D.¹  Blake, Graeme R.¹ 

[1] Univ Groningen, Zernike Inst Adv Mat, Nijenborgh 4, NL-9747 AG Groningen, Netherlands

关键词: Geometrical frustration;    Cluster glass;    AC susceptibility;    Thermoremanent magnetization;    Dynamic scaling;   

DOI  :  10.1016/j.jmmm.2021.168213

来源: Elsevier

【 摘 要 】

We report on the magnetic properties of geometrically frustrated K3CrO4, in which Cr5+ cations are arranged on a distorted pyrochlore lattice. The crystal structure, static and dynamic magnetic properties of the compound are investigated in detail. A combination of DC and AC magnetic susceptibility measurements together with thermoremanent magnetization decay measurements reveal several magnetic transitions: the onset of glassy canted antiferromagnetic order occurs at 36 K, followed by the appearance of ferromagnetic/ferrimagnetic cluster glass behavior below the freezing temperature of 20 K. Further field-induced, temperature-dependent transitions are observed in the range 3-10 K. The frequency dependence of the freezing temperature for the cluster glass state is analyzed on the basis of dynamic scaling laws including the critical slowing down formula and the Vogel-Fulcher law.

【 授权许可】

Free