Magnetic properties of metal–quinone high-spin complexes prepared by solid-state mechano-activation and by chemical synthesis in solution. Comparative study with very high-field and low-temperature EPR and ENDOR

ABSTRACTThe magnetization of antiferromagnetic superconducting GdBa2Cu3O6+δ has been measured for ∼1.5 < T ≤4.2 K for magnetic fields up to ∼20 T. We found that all Gd3+ spins are nearly parallel at very high fields, and that this saturated spin subsystem coexists with superconductivity. Below the Neel temperature, 2.22 K, we observed the transition from the “canted” phase to the paramagnetic phase by the application of a high magnetic field. The temperature dependence of this phase transition is also reported.

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Magnetic properties of CoFe2O4 synthesized by solid state, citrate precursor and polymerized complex methods: A comparative study

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2006.11.058 ◽

2008 ◽

Vol 453 (1-2) ◽

pp. 298-303 ◽

Cited By ~ 81

Author(s):

P.C. Rajath Varma ◽

Rudra Sekhar Manna ◽

D. Banerjee ◽

Manoj Raama Varma ◽

K.G. Suresh ◽

...

Keyword(s):

Magnetic Properties ◽

Solid State ◽

Comparative Study ◽

Citrate Precursor ◽

Complex Methods

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Magnetic properties and microwave absorption in Ni–Zn and Mn–Zn ferrite nanoparticles synthesized by low-temperature solid-state reaction

Journal of Magnetism and Magnetic Materials ◽

10.1016/j.jmmm.2010.10.034 ◽

2011 ◽

Vol 323 (6) ◽

pp. 730-734 ◽

Cited By ~ 48

Author(s):

Gh.R. Amiri ◽

M.H. Yousefi ◽

M.R. Abolhassani ◽

S. Manouchehri ◽

M.H. Keshavarz ◽

...

Keyword(s):

Magnetic Properties ◽

Solid State ◽

Low Temperature ◽

Microwave Absorption ◽

Solid State Reaction ◽

Ferrite Nanoparticles ◽

Zn Ferrite

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MAGNETIC STUDIES OF SUPERCONDUCTING GdBa2Cu3O6+δ AT LOW TEMPERATURE AND HIGH FIELD

Modern Physics Letters B ◽

10.1142/s021798498700034x ◽

1987 ◽

Vol 01 (05n06) ◽

pp. 245-250 ◽

Cited By ~ 1

Author(s):

C.Y. HUANG ◽

Y. SHAPIRA ◽

P.H. HOR ◽

R.L. MENG ◽

C.W. CHU

Keyword(s):

Magnetic Field ◽

Low Temperature ◽

High Magnetic Field ◽

High Field ◽

Paramagnetic Phase ◽

Néel Temperature ◽

Magnetic Studies ◽

Spin Subsystem ◽

Very High ◽

Canted Phase

The magnetization of antiferromagnetic superconducting GdBa2Cu3O6+δ has been measured for ~1.5<T≤4.2 K for field up to ~20 T. We found that all Gd3+ spins are nearly parallel at very high field, and that this saturated spin subsystem coexists with superconductivity. Below the Néel temperature, 2.22 K, we observed the transition from the “canted” phase to the paramagnetic phase by the application of a high magnetic field.

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A Very-High-Spin Molecule: Preparation, Characterization and Magnetic Properties of an FeIII–GdIII Complex with anS = 12/2 Ground State

European Journal of Inorganic Chemistry ◽

10.1002/(sici)1099-0682(199810)1998:10<1543::aid-ejic1543>3.0.co;2-t ◽

1998 ◽

Vol 1998 (10) ◽

pp. 1543-1546 ◽

Cited By ~ 28

Author(s):

Jean-Pierre Costes ◽

Arnaud Dupuis ◽

Jean-Pierre Laurent

Keyword(s):

Magnetic Properties ◽

High Spin ◽

Ground State ◽

Very High

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Development of Water Assisted Solid State Reaction for the Ceramic Materials

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.751.353 ◽

2017 ◽

Vol 751 ◽

pp. 353-357 ◽

Cited By ~ 2

Author(s):

Kenji Toda ◽

Sun Woog Kim ◽

Takuya Hasegawa ◽

Mizuki Watanabe ◽

Tatsuro Kaneko ◽

...

Keyword(s):

Solid State ◽

Low Temperature ◽

Chemical Synthesis ◽

Solid State Reaction ◽

Raw Materials ◽

Synthesis Method ◽

Ceramic Materials ◽

Soft Chemical Synthesis

We report a novel soft chemical synthesis method, water assisted solid state reaction (WASSR) method. This method is very simple and can synthesize many ceramic materials just by storing or mixing raw materials added a small amount of water in a reactor at low temperature below 373 K. For example, well-crystalline SrMoO4 was obtained using the WASSR method.

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Metal-Complexes of 1,10-Phenanthroline Derivatives. XV. Complexes of 2-(3,5-Dimethylpyrazol-1-yl)-1,10-phenanthroline

Australian Journal of Chemistry ◽

10.1071/ch9880873 ◽

1988 ◽

Vol 41 (6) ◽

pp. 873 ◽

Cited By ~ 9

Author(s):

AS Abushamleh ◽

HA Goodwin

Keyword(s):

Magnetic Properties ◽

Solid State ◽

Spectral Data ◽

High Spin ◽

Nickel Complex ◽

Spin Transition ◽

Critical Value ◽

Magnetic Data ◽

Strong Temperature Dependence ◽

Thermally Induced

Iron(II) and nickel(II) bis ( ligand ) complexes of 2-(3,5-dimethylpyrazol-1-yl)-1,10-phenanthroline (L) have been prepared. The field strength of L as determined from spectral data for the nickel complex is in the range encompassing the critical value at the singlet (1A1) ↔ quintet (5T2) crossover for iron(II). The magnetic properties of the iron(II) complex both in solution and in the solid state are anomalous, and indicative of the occurrence of a thermally induced spin transition. Mossbauer spectral data confirm this, and reveal separate contributions from the singlet and quintet species with a strong temperature-dependence of their relative intensities. Magnetic data for the complex in solution are consistent with a simple high spin ↔ low spin equilibrium, and lead to values of ΔH = 23�0.5 kJ mol-1 and ΔS = 66�5 J K-1 mol-1 for the low spin → high spin transformation.

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