Low Weipu Cyrus blue class complex molecular magnets and nickel nanowire composites and magnetic

Title: Low Weipu Cyrus blue class complex molecular magnets and nickel nanowire composites and magnetic Author: Gao Bo Degree-granting units: Lanzhou University Keywords: Prussian Blue: 7696, nanowire arrays: 5152, nano-particles: 2148, nano-materials: 1426, low-dimensional: 1354, Magnetic study
Study: 1346, Nickel nanowires: 1170, aluminum oxide template: 867, microwave absorption: 690, molecular magnets: 570, spin-glass state: 539, Neodymium Magnets compound
Material: 531, PVP: 327, ac susceptibility: 302, the imaginary part of permeability: 228, dispersion: 216, morphology: 216, composite materials
Material: 187, face-centered cubic structure: 186, magnetic measurements: 143 Abstract:
 Currently, the nature of exploration of new nanomaterials and new nano-materials application development is the forefront of scientific research in the field. We explore
Nano-materials and low-Witt for the purpose of high-frequency applications, preparation of Prussian blue type complexes FeCrCr nanowire molecular magnets, MnFe Prussian
Shi Blue class and the complex molecular http://www.everbeenmagnet.com/en/products/110-sintered-neodymium-magnets magnets magnetic nanoparticles of Ni nanowires complex, their morphology, structure and magnetic properties were studied,
The main conclusions are as follows:
 1 alumina template using a diameter of about 80nm were prepared by the Prussian blue type complexes FeCrCr nanowire arrays,
The results show that nanowires: the crystal structure of the face-centered cubic structure, and there is Cr vacancies; infrared spectra from the nanowires
Son bonding to Fe Ⅱ-CN-Cr Ⅲ and Fen Ⅲ-CN-Cr Ⅱ.
 2. By FeCrCr Prussian blue type complex straight nanowires
Flow and exchange of magnetic susceptibility, and found negative at low temperatures the magnetization and the spin-glass transition. Analysis that the ferromagnetic Fe
-Cr and anti-ferromagnetic Cr-Cr on the temperature dependence of the different result in a negative magnetization, and the structure and the presence of Cr vacancies
Fe-Cr and Cr-Cr ferromagnetic and antiferromagnetic interaction between the competition is to produce spin-glass state the reason.
 3. Topiramate use of polyethylene
Slightly oxazolidinone was synthesized as a stabilizer has good dispersion of nano-MnFe Prussian blue type complex cubic particles, the nano-particles
The results show that: the crystal structure of the face-centered cubic structure, and there is Fe vacancies; research results show that the oxygen ions in nanoparticles
Of the state and the bonding of Fe Ⅲ-CN-Mn Ⅱ and Fe Ⅱ-CN-Mn Ⅲ.
 4 by MnFe Prussian blue type complex nanoparticles directly
Flow and exchange of magnetic susceptibility studies have found that the system also exists in the low temperature spin glass transition, we present the structure analysis of Fe
Space makes the MnFe Prussian blue type complexes have been complete long-range interaction with fcc structure, into a separate phase, however, still weak
Interaction of the ferromagnetic and antiferromagnetic clusters.
 5 were prepared using alumina template line diameter of about 30nm of Ni and Ni nanowires
Nanowires / paraffin compound. The structure of Ni nanowires results show that the crystal structure of the face-centered cubic structure. Ni nano-wire chamber
Temperature hysteresis loops show that the shape anisotropy makes the coercivity increased over blocks.
 6 by the Ni nanowires / paraffin
Complex in 2-18GHz spectrum of magnetic and dielectric spectral analysis, found that the Ni nanowires complex high-frequency skin effect is great to contain, Ni nano
Line of the natural resonance peak at around 10GHz. Discussed the complex nature of the microwave, the results show that although other microwave absorber with
Than the absorption is not very satisfactory, but its mechanism of microwave absorption is of great significance. Degree Year: 2009