Static and dynamic magnetic properties of K3CrO4

TL;DR

This study explores the complex magnetic behavior of K3CrO4, revealing multiple magnetic transitions and glassy states through detailed static and dynamic measurements, highlighting its frustrated magnetic lattice.

Contribution

It provides a comprehensive analysis of the static and dynamic magnetic properties of K3CrO4, including the identification of multiple magnetic transitions and glassy states.

Findings

Glassy canted antiferromagnetic order at 36 K

Cluster glass behavior below 20 K

Field-induced transitions between 3-10 K

Abstract

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.