Abstract
We studied the magnetic properties of thiospinel CuCrZrS4 under pressure. At ambient pressure, the temperature dependence of magnetization shows a large irreversibility due to spin-glass freezing between the magnetizations with zero-field cooling and field cooling, with a sudden drop in the former below freezing temperature. The freezing temperature decreases with increasing magnetic field, and its dependence follows the de Almeida–Thouless line. The magnitude of the ac-magnetic susceptibility decreases with increasing pressure. Meanwhile, the freezing temperature increases monotonically with increasing pressure up to ∼8GPa. This means that the pressurization enhances the magnetic frustration coming from the characteristic crystal structure of CuCrZrS4.
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