Spectroscopic characterization of Fe-doped synthetic chrysotile by EPR, DRS and magnetic susceptibility measurements

2010 ◽  
Vol 12 (1) ◽  
pp. 227-238 ◽  
Author(s):  
Elena Borghi ◽  
Manlio Occhiuzzi ◽  
Elisabetta Foresti ◽  
Isidoro Giorgio Lesci ◽  
Norberto Roveri
2011 ◽  
Vol 66 (11) ◽  
pp. 1179-1182 ◽  
Author(s):  
Inga Schellenberg ◽  
Matthias Eul ◽  
Rainer Pöttgen

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 Curie- Weiss 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 151 Eu 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


2010 ◽  
Vol 65 (1) ◽  
pp. 18-22 ◽  
Author(s):  
Inga Schellenberg ◽  
Matthias Eul ◽  
Rainer Pöttgen

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 = 4.5(2) K as is also evident from almost full hyperfine field splitting (Bh = 19.5 T) in the 151Eu Mössbauer spectrum at 4.2 K


2018 ◽  
Vol 34 (4) ◽  
pp. 1787-1794 ◽  
Author(s):  
Saleh A. Ahmed ◽  
Ahmed S. M. Al-Janabi

New Co(II), Ni(II) and Cu(II) complexes with 2-meracapto-5-(2,4-dinitrophenyl)-1,3,4-oxadiazole (IpotH) or 2-meracapto-5-((4-(dimethylamino)benzylidene)amino)-1,3,4-thiadiazole (daptH) ligands, were prepared by treatment two moles of thione ligands with one mole of metal salts in EtOH/Acetone and H2O as a solvents, to afforded octahedral complexes of the types [MX2(k2-IpotH)2] (Where M = Co, Cu, X= Cl and M= Ni , X= NO3 ) or [MX2(k2-daptH)2] (Where M = Co, Cu, X= Cl and M= Ni , X= NO3 ). The thione ligands bonded through the nitrogen atom of heterocylic and sulfur atom of thiol group. The prepared ligands and its complexes were characterization by elemental analysis (CHNM), IR spectroscopy , molar conductivity, magnetic susceptibility, UV-Visible spectroscopy and 1H NMR data.


2001 ◽  
Vol 74 (6) ◽  
pp. 794 ◽  
Author(s):  
Antoine Royant ◽  
Karl Edman ◽  
Thomas Ursby ◽  
Eva Pebay-Peyroula ◽  
Ehud. M. Landau ◽  
...  

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