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We report structural and physical properties of a new quasi-one-dimensionalCr-based compound, KCr$_{3}$As$_{3}$, which is prepared by potassiumdeintercalation from the superconductive K$_{2}$Cr$_{3}$As$_{3}$.KCr$_{3}$As$_{3}$ adopts the TlFe$_{3}$Te$_{3}$-type structure with space group$P6_{3}$/$m$ (No. 176). The high-temperature magnetic susceptibility obeys theCurie-Weiss law with an effective magnetic moment of 0.68$\mu_{\mathrm{B}}$/Cr. Below 56 K the susceptibility deviates from thehigh-temperature Curie-Weiss behavior, coinciding with the rapid increase inresistivity, which suggests formation of spin clusters. The short-range spincorrelations are also supported by the specific-heat data. The title materialdoes not exhibit bulk superconductivity; instead, it shows a cluster spin-glassstate below $\sim$ 5 K.

Cluster spin-glass ground state in quasi-one-dimensional KCr$_{3}$As$_{3}$