Crystallographic and magnetic properties of the spinel type solid solution Zn0.4Co0.6AlxFe2−xO4 (0≤x≤1)

2004 ◽  
Vol 39 (7-8) ◽  
pp. 1141-1157
Author(s):  
A.K.M Zakaria ◽  
M.A Asgar ◽  
S.-G Eriksson ◽  
F.U Ahmed ◽  
S.M Yunus ◽  
...  
2008 ◽  
Vol 59 (4) ◽  
pp. 444-447 ◽  
Author(s):  
K OKADA ◽  
S KOHIKI ◽  
F TSUTSUI ◽  
H SHIMOOKA ◽  
M MITOME ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2019-2024 ◽  
Author(s):  
Jianming Deng ◽  
Aimei Yang ◽  
M. A. Farid ◽  
Hao Zhang ◽  
Jian Li ◽  
...  

The solid solution (Eu1−xMnx)MnO3−δ (0 ≤ x ≤ 0.126) has been synthesized using a conventional solid-state method.


2018 ◽  
Vol 56 (1A) ◽  
pp. 197
Author(s):  
Nguyen Hoang Tuan

In this study, we present some results on the structure and properties of the solid solution of Bi0.5K0.5TiO3– BiFeCoO3 (BKT – BFCO) by Sol-gel method. Crystal structures of BKT – BFCO solid solutions were studies by XRD and Raman spectroscopy. The results were in good agreement with the previous reports of Bi0.5K0.5TiO3– BiFeO3 (BKT – BFO) and Bi0.5K0.5TiO3 – BiCoO3 (BKT – BCO) solid solutions. The magnetic properties were investigated via unsaturated M-H loop, which showed the competition of paramagnetic and antiferromagnetic ordering in BKT – BFCO. However, differing from the BKT – BFO and BKT – BCO solid solutions, the unclear values of saturated magnetism in BKT – BFCO raised the unexplained question, which needed further studies.


2006 ◽  
Vol 408-412 ◽  
pp. 1205-1209 ◽  
Author(s):  
Md. Tahidul Haque ◽  
Hirohisa Satoh ◽  
Naoki Kamegashira

1979 ◽  
Vol 46 (6) ◽  
pp. 1740-1747 ◽  
Author(s):  
Fumitaka Matsubara ◽  
Sakari Inawashiro

2004 ◽  
Vol 1 (7) ◽  
pp. 1706-1710 ◽  
Author(s):  
M. S. Ben Kraiem ◽  
M. Ellouze ◽  
A. Cheikh-Rouhou ◽  
Ph. L'Héritier

1993 ◽  
Vol 07 (01n03) ◽  
pp. 716-720
Author(s):  
B. WALL ◽  
M. KATTER ◽  
W. RODEWALD ◽  
M. VELICESCU

In cast Sm2Fe17 ingots minor fractions of SmFe2 and SmFe3 may occur. Nitrogenation of such alloy-powders inidicates that only Sm2Fe17 forms an interstitial solid solution whereas SmFe2 and SmFe3 decompose directly into SmN and α-Fe. From Sm2Fe17Nx alloy powders with an average particle size of about 3 μm anisotropic magnets were prepared by adding 15 wt% Zn-powder. Annealing at 390 ºC results in intrinsic coercivities > 15 kOe promoted by the formation of an unknown binary Fe8Zn92-compound. Whereas annealing at temperatures > 420 ºC leads to the formation of binary Fe3Zn7 and ternary Sm2FeZn2. By the formation of Sm2FeZn2 from Sm2Fe17Nx+Zn some α-Fe occurs inducing a step in the demagnetization curve J(H).


2009 ◽  
Vol 64 (10) ◽  
pp. 1107-1114 ◽  
Author(s):  
Thomas Harmening ◽  
Matthias Eul ◽  
Rainer Pöttgen

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), b = 3820.1(8), c = 462.51(9) pm, wR2 = 0.0358, 695 F2 values, 39 variables for Eu2Ni1.35(1)Sn5. This new structure type can be considered as an intergrowth structure of CaBe2Ge2- and CrB-related slabs. The striking structural motifs are nickel-centered square pyramids which are condensed via common corners and edges. The layers of condensed NiSn5 units are separated by the europium atoms. The Ni1 sites within the CaBe2Ge2 slabs show significant defects which leads to split positions for one tin site. Eu2Ni1.50Sn5 shows Curie-Weiss behavior and an experimental magnetic moment of 7.74(1) μB / Eu atom, indicating stable divalent europium, as is also evident from 151Eu Mössbauer spectra. Antiferromagnetic ordering is detected at 3.5 K.


Sign in / Sign up

Export Citation Format

Share Document