Structural design and multiple magnetic orderings of the intergrowth compound Eu${}_2$CuMn${}_2$P${}_3$

Abstract

We report the design, synthesis, crystal structure, and physical properties of a layered intergrowth compound, Eu${}_2$CuMn${}_2$P${}_3$. The structure of Eu${}_2$CuMn${}_2$P${}_3$ features an alternating arrangement of hexagonal EuCuP block layers and trigonal EuMn${}_2$P${}_2$ block layers, interconnected through shared Eu planes. This structural hybridization leads to multiple magnetic orderings in Eu${}_2$CuMn${}_2$P${}_3$: weak antiferromagnetic (AFM) ordering of Mn at $T_{\mathrm{N}}^{\mathrm{Mn}}$ = 80 K, AFM ordering of Eu at $T_{\mathrm{N}}^{\mathrm{Eu}}$ = 29 K, a spin-reorientation transition at $T_{\mathrm{SR}}$ = 14.5 K, and weak ferromagnetism below $T_{\mathrm{N}}^{\mathrm{Mn}}$. The spin configurations at different temperature regions were discussed based on the calculations of magnetic energies for various collinear arrangements. Resistivity measurements reveal a pronounced transition peak at $T_{\mathrm{N}}^{\mathrm{Eu}}$, which is suppressed in the presence of a magnetic field, resulting in a significant negative magnetoresistance effect. The computed semimetallic band structure, characterized by a small density of states at the Fermi level, aligns well with experimental observations. The successful synthesis of Eu${}_2$CuMn${}_2$P${}_3$ and its fascinating magnetic properties highlight the effectiveness of our block-layer design strategy. By assembling magnetic block layers of compounds with compatible crystal symmetries and closely matched lattice parameters, this approach opens exciting avenues for discovering layered materials with unique magnetic behaviors.

References in corpus (25)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• A Common Thread: the pairing interaction for the unconventional superconductors
• The superconductivity at 18 K in LiFeAs system
• Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure
• Superconductivity in pressurized trilayer La${}_4$Ni${}_3$O${}_{10-\delta }$ single crystals
• Superconductivity in KCa${}_2$Fe${}_4$As${}_4$F${}_2$ with Separate Double Fe${}_2$As${}_2$ Layers
• A Single Pair of Weyl Fermions in Half-metallic EuCd2As2 Semimetal
• Superconductivity and Ferromagnetism in Hole-Doped RbEuFe${}_4$As${}_4$
• Unified Molecular Field Theory for Collinear and Noncollinear Heisenberg Antiferromagnets
• A New Ferromagnetic Superconductor: CsEuFe${}_4$As${}_4$
• Crystal Structure and Superconductivity at about 30 K in $A$Ca${}_2$Fe${}_4$As${}_4$F${}_2$ ($A$ = Rb, Cs)
• Superconductivity at 33 - 37 K in $AL{n}_2$Fe${}_4$As${}_4$O${}_2$ ($A$ = K and Cs; $Ln$ = Lanthanides)
• Antiferromagnetism in trigonal SrMn2As2 and CaMn2As2 single crystals
• Superconductivity at 35 K by self doping in RbGd${}_2$Fe${}_4$As${}_4$O${}_2$
• Ionic vs. van der Waals Layered Materials: Identification and Comparison of Elastic Anisotropy
• Metallic behavior induced by potassium doping of the trigonal antiferromagnetic insulator EuMn2As2
• Collinear antiferromagnetism in trigonal SrMn${}_2$As${}_2$ revealed by single-crystal neutron diffraction
• BaTh${}_2$Fe${}_4$As${}_4$(N${}_{0.7}$O${}_{0.3}$)${}_2$: An Iron-Based Superconductor Stabilized by Inter-Block-Layer Charge Transfer
• First-order transitions at the Neel temperatures of trigonal SrMn2P2 and CaMn2P2 single crystals containing corrugated-honeycomb Mn sublattices
• Manipulating magnetism and transport properties of EuCd${}_2$P${}_2$ with a low carrier concentration
• Magnetic-field-induced ab-plane rotation of the Eu magnetic moments in trigonal EuMg2Bi2 and EuMg2Sb2 single crystals below their Neel temperatures
• Spin correlation in trigonal EuMn${}_2$As${}_2$
• Unusual magnetic and transport properties in the Zintl phase Eu${}_{11}$Zn${}_6$As${}_{12}$
• Antiferromagnetic Order and Spin-Canting Transition in the Corrugated Square Net Compound Cu${}_3$(TeO${}_4$)(SO${}_4$)$\cdot$H${}_2$O
• Recent advances in understanding and manipulating magnetic and electronic properties of Eu$M_2{X}_2$ ($M$ = Zn, Cd; $X$ = P, As)

Cited by in corpus (1)

• Design, synthesis, and physical properties of the intergrowth compound Eu${}_2$CuZn${}_2$As${}_3$