Magnetic and Mössbauer Spectroscopic Characterization of EuNi2Sb2
نویسندگان
چکیده
ThCr2Si2-type EuNi2Sb2 (I4/mmm, a = 438.1(1), c = 1068.1(4) pm) was synthesized by arc-melting of the elements. Magnetic susceptibility measurements show CurieWeiss behavior with an experimental magnetic moment of 8.03(1) μB/Eu atom, indicating stable divalent europium. EuNi2Sb2 orders antiferromagnetically at TN = 5.8(1) K. A 151Eu Mössbauer spectrum at 4.2 K shows two spectral components with hyperfine fields of 19.1 and 12.9 T, indicative of different magnetically ordered domains.
منابع مشابه
On the Magnetic and Mössbauer Spectroscopic Characterization of EuPd2Sb2
The CaBe2Ge2-type antimonide EuPd2Sb2 (P4/nmm, a = 462.43(7), c = 1056.1(2) pm) was synthesized by induction melting of the elements in a sealed tantalum tube. Temperature-dependent magnetic susceptibility measurements have revealed Curie-Weiss behavior with an experimental magnetic moment of 7.93(1) μB/Eu atom, indicating stable divalent europium. EuPd2Sb2 orders antiferromagnetically at TN = ...
متن کاملSynthesis and Spectroscopic Characterization of a Series of New Anthralin Derivatives and Their Corresponding Spiro-Hetherocycles
Several 10-substituted anthralins were readily prepared. Their oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone gave the corresponding novel heteroatomic systems. All derivatives were fully characterized by IR, Mass and 1HNMR spectroscopy.
متن کاملNickel-deficient Stannides Eu2Ni2–xSn5 – Structure, Magnetic Properties, and Mössbauer Spectroscopic Characterization
New nickel-deficient stannides Eu2Ni2−xSn5 were synthesized by induction melting of the elements in sealed tantalum tubes. The solid solution was studied by X-ray powder diffraction and two crystal structures were refined on the basis of X-ray diffractometer data: Cmcm, a = 466.03(4), b = 3843.1(8), c = 462.92(9) pm, wR2 = 0.0469, 692 F2 values, 39 variables for Eu2Ni1.49(1)Sn5 and a = 466.11(9...
متن کاملMössbauer spectroscopic and x-ray diffraction studies of FeÕSiO2 nanocomposite soft magnetic materials
Nanocomposite high resistive soft magnetic materials Fe/SiO2 ~Fe volume fraction 50%! have been synthesized using a wet chemical reaction method. A series of metal-ceramic Fe/SiO2 nanocomposite powder samples were obtained by annealing the precursor at temperatures from 400 to 900 °C in the presence of a reducing agent. The compositions of the precursor and the successive heat-treated samples h...
متن کاملMössbauer spectroscopic study of iron–nickel nitrides thin films prepared by ion beam assisted deposition
In this paper we have shown the feasibility of ion beam assisted deposition to produce iron–nickel nitride thin films of various compositions. We have carried out their compositional and structural characterization by means of Rutherford backscattering spectroscopy (RBS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and integral conversion electron Mössbauer spectroscopy (ICE...
متن کامل