Magnetic nanoparticles are used throughout biology for applications from targeted drug and gene delivery to the labeling of cells. These nanoparticles typically react with the biological medium to which they are introduced, resulting in a diminished magnetic moment. The rate at which their magnetic moment is diminished limits their utility for targeting and can signal the unintended release of ...

We have shown in [1] that a neutrino magnetic moment form factor µ ν (q 2) could be considerably amplified at low momentum transfer, q 2 ≤ m 2 N , at the cost of introducing an extra light neutral fermion N with mass m N and nonzero magnetic moment. It was assumed that the magnetic moment of N would originate in a renormalizable way at a heavy scale M. While the enhancement of the neutrino magn...

an improved mit bag model with hyper central interactions is used to calculate the staticproperties of hadrons containing u, d, s and c quarks. we present a theoretical approach to the internalstructure of three-body hyper central interacting quarks in a hadron, in which we take hadron as a bag.we discuss a few of the results obtained using a six-dimension harmonic oscilator (h.o) potential, ha...

It is shown that the difference between the magnetic moment results in the quark model with null instantons and semibosonized Nambu-Jona-Lasinio model lies in the description of the magnetic moment of the Λ-hyperon.

The magnetic properties of layered-perovskite RbMnF4 have been investigated by neutron powder diffraction. This compound exhibits a magnetic ordering below T,=3.7&0.2 K. The resolution of the magnetic structure at 1.5 K indicates that RbMnF; orders as a collinear antiferromagnet. The propagation vector is k=O and the magnetic moment of each sublattice has a value of 2.97( 3) pfi The strong redu...

The magnetic moment reversal at each of the two inequivalent Nd sites in a single crystal of ferromagnetic Nd(2)Fe(14)B is probed by dichroic resonant diffraction of circularly polarized x rays. The results, supported by theory, show that the c-axis intrinsic magnetic stability of this superior permanent magnetic material arises predominantly at one of the Nd sites (g). The other site (f) under...

The method of QCD sum rules in the presence of the external electromagnetic Fμν field is used to calculate the Ω magnetic moment μΩ and the Σ Λ transition magnetic moment μΣ0Λ, with the susceptibilities obtained previously from the study of octet baryon magnetic moments. The results μΩ = −1.92μN and μΣ0Λ = 1.5μN are in good agreement with the recent experimental data.

It is shown that the baryon magnetic moment descriptions in the frameworks of the chiral model ChPT and the quark soliton χQSM one are practically identical. The main difference from the traditional unitary symmetry models proves to be in terms due to the pionic current contribution into the magnetic moments of nucleons and in the prediction for the Λ magnetic moment.

Using Hartree-Fock Su-Sheriffer-Heeger (HF-SSH) model, we have studied the dependence of the energies of the ground (magnetic triplet state) and the first exited (nonmagnetic singlet state) states of the size-2 trigonal zigzag graphene nanoflake (size-2 NF) on the intensity of an external in plane static electric field at zero temperature. We identify a transition from the magnetic triplet stat...

It is known that if neutrino is a Dirac fermion with magnetic moment, then νL → νR → νL transition of supernova neutrinos may occur. The first stage of such transition is due to the neutrino spin flip inside the hot dense supernova core, while the second one – due to the neutrino spin precession in the galactic magnetic field on the way from the supernova to terrestrial detectors. This can resu...