The two-dimensional metallic triangular lattice antiferromagnet CeCd3P3

Abstract

Single crystals of $R$Cd${}_3$P${}_3$ ($R$ = La and Ce) have been investigated by magnetization, electrical resistivity, Hall coefficient, and specific heat. Magnetization measurements of CeCd${}_3$P${}_3$ demonstrate clear quasi-2D magnetic behavior. Electrical resistivity and Hall coefficient measurements suggest that $R$Cd${}_3$P${}_3$ compounds are low carrier density metallic systems, in strong contrast to an earlier study of polycrystalline material. Specific heat and electrical resistivity measurements of CeCd${}_3$P${}_3$ reveal a high temperature (structural) phase transition at $T_s=127$~K and antiferromagnetic ordering below $T_N=0.41$~K. Upon applying magnetic field in the easy-plane ($H\parallel ab$) the magnetic ordering temperature increases to 0.43~K at $H\sim 15$~kOe, demonstrating partial lifting of the magnetic frustration. The large electronic specific heat persists in an unusually wide range of temperature above $T_N$, due to the frustrated spins. The observation of conventional metallic behavior in the electrical resistivity suggests that the $f$-electrons in CeCd${}_3$P${}_3$ undergo negligible hybridization with the conduction electrons. Thus, CeCd${}_3$P${}_3$ may be a model system for exploring the complex interplay between magnetic frustration and RKKY physics on a low carrier density Ce triangular lattice.

9 pages, 8 figures

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Cited by in corpus (10)

• A Class of Compounds Featuring Frustrated Triangular Magnetic Lattice CsRESe${}_2$ (RE=La-Lu): Quantum Spin-Liquid Candidates
• Long-range magnetic order in the $\tilde{S}=1/2$ triangular lattice antiferromagnet KCeS${}_2$
• Triangular Kondo lattice in $\mathrm{Yb}{\mathrm{V}}_6\mathrm{S}{\mathrm{n}}_6$ and its quantum critical behaviors in magnetic field
• Long-range magnetic order in the anisotropic triangular lattice system CeCd3As3
• The influence of crystalline electric field on the magnetic properties of CeCd3X3 (X = P and As)
• Magnetic order in the $S_{\mathrm{eff}}$ = 1/2 triangular-lattice compound NdCd${}_3$P${}_3$
• Interleaved bond frustration in a triangular lattice antiferromagnet
• Interplay of magnetic ordering and charge transport in a distorted ScAl${}_3$C${}_3$-type GdZn${}_3$As${}_3$
• Interplay of short-range bond order and A-type antiferromagnetic order in metallic triangular lattice GdZn${}_3$P${}_3$
• Hidden frustration in the triangular-lattice antiferromagnet NdCd3P3