Cobalt has an orbital structure that gives a magnetic moment of 1.72 Bohr Magnetons per atom. Given the density of Cobalt is 8900 kg/m3 and the atomic mass of Cobalt is 59 calculate the following :
(a) The saturation magnetization
(b) The saturation flux density
Cobalt has an orbital structure that gives a magnetic moment of 1.72 Bohr Magnetons per atom....
The measured saturation magnetization of NiO.Fe2O3 at 0K is 56Am2/kg. Calculate the magnetic moment per molecule, in Bohr magnetons.
For an Mn based ferrite, MnFe2O4, the magnetic moment comes from Mn. Given that the saturation magnetization of MnFe2O4 is 5.6×105 A/m, the atomic weight is 230.64 g/mol and density is 5.0 g/cm3. Calculate the number of Bohr magnetons per Mn2+ ion.
(1). A particular paramagnetic substance achieves 10.0% of its saturation magnetization when placed in a magnetic field of 5.00 T at a temperature of 4.00 K. The density of magnetic atoms in the sample is 8.00 x 1027 atoms/m3, and the magnetic moment per atom is 5.00 Bohr magnetons. Calculate the Curie constant for this substance. (2). The magnetic moment of the Earth is approximately 8.00 x 1022 A∙m2. a. If this were caused by the complete magnetization of a...
The magnetic moment of the Earth is approximately 8.00 × 1022 A · m2. Imagine that the planetary magnetic field were caused by the complete magnetization of a huge iron deposit with density 7 900 kg/m3 and approximately 8.50 × 1028 iron atoms/m3. (a) How many unpaired electrons, each with a magnetic moment of 9.27 × 10−24 A · m2, would participate? (b) At two unpaired electrons per iron atom, how many kilograms of iron would be present in the...
The energy of a magnetic moment in a magnetic field is . A certain paramagnetic salt contains 1025 magnetic moments per m3. Each one has a value , due to the atom's spin. As the spin is 1/2, there only are two possible states and the magnetic moments can be parallel or antiparallel to the field. Each magnetic moment belongs to one distinguishable atom. A 1 cm3 sample of this salt is placed in a electromagnet producing a uniform magnetic...
A sample of diamon has a density of 3.5 x 103 kg/m3 and a polarization of 10-7 C/m2 (a) What is the average dipole moment per atom? (b) What is the average separation between the centers of (+) and (-) charge? The carbon nucleus has a charge +6lel and is surrounded by six electrons. Assume that the diameter of an atom is of the order of 10-10 m In. A sample of diamon has a density of 3.5 x 103...
3.8 Calculate the radius of an iridium atom, given that Ir has an FCC crystal structure, a density of 22.4 g/cm3 , and an atomic weight of 192.2 g/mol.
Consider a face-centered cubic crystal structure that has one atom at each lattice point. The atomic radius, ? is 0.152 nm and the atomic weight, ? is 68.4 g/mol. Assuming the atoms to be hard spheres and touch each other with their nearest neighbor, calculate the mass density.
Assume that gold has one electron per atom to carry charge. The mass density of gold is 1.89×104 kg/m3 and its molecular weight is 197.0 g/mol. Calculate the drift speed of the electrons in a wire made of gold, with a radius of 0.57 mm, that carries a current of 1.36 A.
In class Monday we established that the number density of free electrons in silicon was 1.09E+16 electrons per cubic meter. Now calculate the number of free electrons per silicon atom. The density of silicon is 2.33 Mg/m3 ; the atomic mass of silicon is 28.085 g/mole. Consider silicon which has a band gap of 1.11 eV and a measured conductivity of 0.00034 /ohmm at 300K. Its electron mobility is 0.145 m^2/(V x sec) and its hole mobility is 0.050 m^2/(V...