We report the synthesis, structure, and magnetic transport properties of a new ternary intermetallic compound PrRhSn3 which crystallizes in LaRuSn3-type cubic structure (space group Pm-3n). At low applied fields dc susceptibility exhibits sharp anomaly below 6~K with an irreversible behavior zero field cooled (ZFC) (FC) 5.5 K. The ac frequency dependent revealing spin-glass freezing temperature, T_f = 4.3 observation is further supported by very slow decay thermo-remnant magnetization (mean...

We present synchrotron x-ray diffraction, neutron powder and time-of-flight inelastic scattering measurements on the rare earth pyrochlore oxide ${\mathrm{Nd}}_{2}{\mathrm{Zr}}_{2}{\mathrm{O}}_{7}$ to study ordered state magnetic structure cystal-field states. The structural characterization by high-resolution diffraction confirms that has no detectable O vacancies or Nd/Zr site mixing. reveals long-range all-in/all-out antiferromagnetic order below ${T}_{\mathrm{N}}\ensuremath{\approx}0.4$...

We have investigated the superconducting properties of noncentrosymmetric superconductor LaRhSi${}_{3}$ by performing magnetization, specific heat, electrical resistivity, and muon spin relaxation ($\ensuremath{\mu}$SR) measurements. crystallizes with BaNiSn${}_{3}$-type tetragonal structure (space group $I4 \mathit{mm}$), as confirmed through our neutron diffraction study. Magnetic susceptibility, resistivity heat data reveal a sharp well-defined transition at...

Polycrystalline samples of LaNi2(Ge{1-x}P{x})2 (x = 0, 0.25, 0.50, 0.75, 1) were synthesized and their properties investigated by x-ray diffraction (XRD), heat capacity Cp, magnetic susceptibility chi, electrical resistivity rho measurements versus temperature T. These compounds all crystallize in the body-centered-tetragonal ThCr2Si2-type structure. The rho(T) indicate that compositions this system are metallic. low-T Cp yield a rather large Sommerfeld coefficient gamma 12.4(2) mJ/mol K^2...

We have investigated the physical properties of a pyrochlore hafnate Nd2Hf2O7 using ac magnetic susceptibility \chi_ac(T), dc \chi(T), isothermal magnetization M(H) and heat capacity C_p(T) measurements, determined ground state by neutron powder diffraction study. An upturn is observed below 6 K in C_p(T)/T, however both \chi(T) do not show any clear anomaly down to 2 K. The \chi_ac(T) shows well pronounced indicating an antiferromagnetic transition at T_N = 0.55 long range ordering...

We have carried out neutron diffraction, muon spin relaxation $(\ensuremath{\mu}\text{SR})$, and inelastic scattering (INS) investigations on a polycrystalline sample of ${\text{CeOs}}_{2}{\text{Al}}_{10}$ to investigate the nature phase transition observed near 29 K in resistivity heat capacity. Our $\ensuremath{\mu}\text{SR}$ data clearly reveal coherent frequency oscillations below 28 K, indicating presence an internal field at site, which confirms long-range magnetic ordering Ce moment...

The compound BaMn2As2 with the tetragonal ThCr2Si2 structure is a local-moment antiferromagnetic insulator Néel temperature T(N)=625 K and large ordered moment μ=3.9μ(B)/Mn. We demonstrate that this can be driven metallic by partial substitution of Ba while retaining same crystal structures together nearly high T(N) μ. Ba(1-x)K(x)Mn2As2 thus first ThCr2Si2-type MAs-based system containing local 3d transition metal M magnetic moments, consequences for ongoing debate about versus itinerant...

We report the growth of single crystals SrCu2As2, SrCu2Sb2, SrCu2(As{0.84}Sb{0.16})2 and BaCu2Sb2 using self-flux technique their structural, magnetic, thermal transport properties that were investigated by powder x-ray diffraction (XRD), magnetic susceptibility chi, specific heat Cp electrical resistivity rho measurements versus temperature T from 1.8 to 350 K. Rietveld refinements XRD patterns for crushed confirm SrCu2As2 crystallizes in ThCr2Si2-type structure SrCu2Sb2 CaBe2Ge2-type...

The synthesis and crystallography, magnetic susceptibility chi, magnetization M, specific heat Cp, in-plane electrical resistivity rho penetration depth measurements are reported for single crystals of APd2As2 (A = Ca, Sr, Ba) versus temperature T field H. were grown using PdAs self-flux. CaPd2As2 SrPd2As2 crystallize in a collapsed body-centered tetragonal ThCr2Si2-type structure (I4/mmm), whereas BaPd2As2 crystallizes the primitive CeMg2Si2-type (P4/mmm), agreement with literature data....

The noncentrosymmetric superconductors LaPdSi${}_{3}$ and LaPtSi${}_{3}$ have been studied with magnetization, specific-heat, resistivity, $\ensuremath{\mu}$SR measurements. These crystallize in the tetragonal BaNiSn${}_{3}$ structure superconductivity is observed at ${T}_{\mathrm{c}}=2.65(5)$ K for ${T}_{\mathrm{c}}=1.52(6)$ LaPtSi${}_{3}$. results are consistent both compounds being weakly coupled, fully gapped but measurements reveal that a bulk type-I superconductor while type-II...

The results of heat capacity ${C}_{\mathrm{p}}(T,H)$ and electrical resistivity $\ensuremath{\rho}(T,H)$ measurements down to 0.35 K as well muon spin relaxation rotation $(\ensuremath{\mu}\mathrm{SR})$ on the noncentrosymmetric superconductor ${\mathrm{LaIrSi}}_{3}$ are presented. Powder neutron diffraction confirmed reported body-centered tetragonal ${\mathrm{BaNiSn}}_{3}$-type structure (space group $I4\phantom{\rule{0.16em}{0ex}}mm)$ ${\mathrm{LaIrSi}}_{3}$. bulk superconductivity is...

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The magnetic states of the noncentrosymmetric pressure-induced superconductor ${\mathrm{CeCoGe}}_{3}$ have been studied with susceptibility, muon spin relaxation ($\ensuremath{\mu}\mathrm{SR}$), single-crystal neutron diffraction, and inelastic scattering (INS). exhibits three phase transitions at ${T}_{\mathrm{N}1}=21,\phantom{\rule{0.28em}{0ex}}{T}_{\mathrm{N}2}=12$, ${T}_{\mathrm{N}3}=8\phantom{\rule{0.28em}{0ex}}\mathrm{K}$. presence long-range order below ${T}_{\mathrm{N}1}$ is revealed...

Neutron and x-ray diffraction measurements are presented for powders single crystals of ${\mathrm{CaCo}}_{2}{\mathrm{As}}_{2}$. The crystal structure is a collapsed-tetragonal ${\mathrm{ThCr}}_{2}{\mathrm{Si}}_{2}$-type as previously reported, but with 7(1)% vacancies on the Co sites corresponding to composition ${\mathrm{CaCo}}_{1.86(2)}{\mathrm{As}}_{2}$. thermal expansion coefficients both $a$ $c$ axes positive from 10 300 K. demonstrate onset A-type collinear antiferromagnetic order...

The magnetic ground state of CeRhGe${}_{3}$ has been investigated using susceptibility, heat capacity, neutron diffraction, muon spin relaxation (\ensuremath{\mu}SR), and inelastic scattering (INS) techniques. Our \ensuremath{\mu}SR study clearly reveals the presence two frequencies below T${}_{\mathrm{N}2}$ $=$ 7 K three between T${}_{\mathrm{N}1}$ 14.5 K, indicating long-range ordering Ce${}^{3+}$ moment. temperature dependence highest frequency follows a mean-field order parameter. powder...

Single crystals of ${\mathrm{EuCu}}_{2}{\mathrm{As}}_{2}$ and ${\mathrm{EuCu}}_{2}{\mathrm{Sb}}_{2}$ were grown from CuAs CuSb self-flux, respectively. The crystallographic, magnetic, thermal, electronic transport properties the single investigated by room-temperature x-ray diffraction (XRD), magnetic susceptibility $\ensuremath{\chi}$ versus temperature $T$, isothermal magnetization $M$ field $H$, specific heat ${C}_{\mathrm{p}}(T)$, electrical resistivity $\ensuremath{\rho}(T)$...

We report studies of CaCo{1.86}As2 single crystals. The electronic structure is probed by angle-resolved photoemission spectroscopy (ARPES) measurements and full-potential linearized augmented-plane-wave calculations for the supercell Ca8Co15As16 (CaCo{1.88}As2). Our XRD crystal refinement consistent with previous combined x-ray neutron powder diffraction data showing a collapsed-tetragonal ThCr2Si2-type 7(1)% vacancies on Co sites corresponding to composition [D. G. Quirinale et al., Phys....

Physical properties of a pyrohafnate compound Pr2Hf2O7 have been investigated by ac magnetic susceptibility \chi_ ac(T), dc \chi(T), isothermal magnetization M(H) and heat capacity C_p(T) measurements on polycrystalline as well single crystal samples combined with high-resolution synchrotron x-ray diffraction (XRD) for structural characterization inelastic neutron scattering (INS) to determine the field energy level scheme wave functions. Synchrotron XRD data confirm ordered cubic pyrochlore...

The synthesis and crystallographic physical properties of polycrystalline EuNiGe${}_{3}$ are reported. crystallizes in the noncentrosymmetric body-centered tetragonal BaNiSn${}_{3}$-type structure (space group $I4mm$), agreement with previous reports, Eu atoms at corners body center unit cell. property data consistently demonstrate that this is a metallic system which spins $S=7/2$ order antiferromagnetically temperature ${T}_{\mathrm{N}}=13.6$ K. Magnetic susceptibility $\ensuremath{\chi}$...

Inelastic neutron scattering measurements on the itinerant antiferromagnet (AFM) CaCo$_{\mathrm{2}-y}$As$_{2}$ at a temperature of 8 K reveal two orthogonal planes perpendicular to Co square lattice in reciprocal space, demonstrating presence effective one-dimensional spin interactions. These results are shown arise from near-perfect bond frustration within $J_1$-$J_2$ Heisenberg model with ferromagnetic $J_1$, and hence indicate that extensive previous experimental theoretical study...