Magnetic ordering and dense Kondo behaviour in EuFe${}_2$P${}_2$

Abstract

Ternary iron phosphide EuFe${}_2$P${}_2$ with ThCr${}_2$Si${}_2$-type structure has been systematically studied by the measurements of crystal structure, magnetization, Mössbauer effect, transport properties and specific heat. The structural refinement result confirms no direct P-P covalent bonding. The Mössbauer spectra indicate no magnetic moment for the Fe atoms and, that the Eu ions are divalent in the whole temperatures, carrying local moments of $S$=7/2. The Eu${}^{2+}$ spins order ferromagnetically at $T_C$=29.5 K, followed by a possible helimagnetic ordering below $T_{HM}$=26 K, where the Eu${}^{2+}$ moments tilt a little from the c-axis. External magnetic field increases $T_C$ gradually, but suppresses $T_{HM}$ rapidly. (Magneto)resistivity data indicate characteristic dense Kondo behaviour above the Curie temperature. The result is discussed in terms of the interplay between intersite RKKY and intrasite Kondo interactions.

14 pages, 9 figures

References in corpus (15)

• Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO${}_{1-x}$F${}_x$FeAs
• Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides
• Superconductivity up to 30 K in the vicinity of quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• On the thermoelectricity of correlated electrons in the zero-temperature limit
• Superconductivity induced by phosphorus doping and its coexistence with ferromagnetism in EuFe${}_2$(As${}_{0.7}$P${}_{0.3}$)${}_2$
• Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2
• High-Temperature Superconductivity in Eu0.5K0.5Fe2As2
• Antiferromagnetic transition in EuFe${}_2$As${}_2$: A possible parent compound for superconductors
• Possible re-entrant superconductivity in EuFe2As2 under pressure
• Magnetic structure of EuFe2As2 determined by single crystal neutron diffraction
• Metamagnetic transition in EuFe${}_2$As${}_2$ single crystals
• EuFe${}_2$As${}_2$ under high pressure: an antiferromagnetic bulk superconductor
• CeFePO: A Heavy Fermion Metal with Ferromagnetic Correlations
• Superconductivity and local-moment magnetism in Eu(Fe${}_{0.89}$Co${}_{0.11}$)${}_2$As${}_2$
• Effects of the magnetic orderings on the dynamical conductivity: optical investigations of EuFe${}_2$As${}_2$ single crystals

Cited by in corpus (18)

• Interplay of antiferromagnetism, ferromagnetism and superconductivity in EuFe_2(As_1-xP_x)_2 single crystals
• Coexistence of Superconductivity and Ferromagnetism in P-doped EuFe2As2
• EuFe2(As1-xPx)2: reentrant spin glass and superconductivity
• Topological Hall effect in the antiferromagnetic Dirac semimetal EuAgAs
• Itinerant and local-moment magnetism in EuCr2As2 single crystals
• Superconductivity and ferromagnetism in EuFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Interplay between magnetism and superconductivity in EuFe(2-x)Co(x)As2 studied by 57Fe and 151Eu Mössbauer spectroscopy
• Study of the anisotropic magnetic order of the Eu sublattice in single crystals of EuFe_2-xCo_xAs_2 (x = 0, 0.2) by means of magnetization and magnetic torque
• Complex and strongly anisotropic magnetism in the pure spin system EuRh2Si2
• Physical properties of EuPd2As2 single crystals
• Helical Antiferromagnetic Ordering in EuNi{1.95}As2
• Electronic structure of Ni-doped EuRbFe${}_4$As${}_4$: Unique crystal field splitting and multiband RKKY interactions
• Metamagnetic transitions and anomalous magnetoresistance in EuAg${}_4$As${}_2$ single crystal
• Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFe${}_2$As${}_{2-x}$P${}_x$
• 57Fe and 151Eu Mössbauer studies of 3d-4f spin interplay in EuFe(2-x)Ni(x)As2
• Effects of $c/a$ Anisotropy and Local Crystal Structure on Superconductivity in $A\mathrm{F}{\mathrm{e}}_2({\mathrm{As}}_{1-x}{\mathrm{P}}_x{)}_2$ ($A$=Ba${}_{1-y}$Sr${}_y$, Sr${}_{1-y}$Ca${}_y$ and Eu)
• Magnetically-controlled Vortex Dynamics in a Ferromagnetic Superconductor
• In-situ local imaging of ferromagnetism and superconductivity in RbEuFe${}_4$As${}_4$