A. Henning, M. Schär, R. F. Schulte, K. P. Pruessmann, P. Boesiger Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Kanton Zurich, Switzerland, John Hopkins University, Baltimore, MD, United States Introduction In spite of significantly improved saturation pulses [1,2] sufficient outer volume (OVS) and especially fat suppression in MRSI could only be achieved in combinat...

Mn–Zn ferrite powders (Mn0.5Zn0.5Fe2O4) were prepared by the nitrate–citrate auto-combustion method and subsequently annealed in air or argon. The effects of heat treatment temperature on crystalline phases formation, microstructure and magnetic properties of Mn–Zn ferrite were investigated by X-ray diffraction, thermogravimetric and differential thermal analysis, scanning electron microscopy a...

Electro deposition of NiFeWS thin films was carried out from diammonium citrate bath at a constant current density (1 A/dm 2 ) and controlled pH of 8 by varying the citrate bath concentration(0.2, 0.3, 0.4, 0.5 mol / lit). Physical properties such as surface morphology, microstructure and magnetic properties such as coercivity, saturation magnetization and magnetic flux density were investigate...

RbFe(MoO4)2 is a rare example of a nearly two-dimensional Heisenberg antiferromagnet on a triangular lattice. Magnetic resonance spectra and magnetization curves reveal that the system has a layered spin structure with six magnetic sublattices. The sublattices within a layer are arranged in a triangular manner with the magnetization vectors 120° apart. The H-T phase diagram, containing at least...

A complete and exact solution of the ground-state problem for the Ising model on the Shastry-Sutherland lattice in an applied magnetic field is found. The magnetization plateau at one third of the saturation value is shown to be the only possible fractional plateau in this model. However, stripe magnetic structures with 1/2 and 1/n (n>3) magnetization, observed in the rare-earth-metal tetrabori...

Ni0.82xF 2O4 (x = 0.2, 0.3, 0.4, 0.5, 0.6) are synthesized by the citrate precursor method. Effects of zinc substitution on DC resistivity, dielectric relaxation intensity, initial permeability, saturation magnetization and Curie temperature have been investigated. It is observed that resistivity increases with increase in zinc concentration up to x = 0.5 and then decreases. The observed behavi...

Thin films ofCo-W, 300-500 A thick, were electrodeposited at various compositions under a wide range ofplattng conditions. The saturation magnetization, coercivity, and squareness ratio of the films were derived from the parallel (in-plane) and perpendicular hysteresis loops, measured by using a vibrating sample magnetometer. The magnetic properties of the films are strongly related to their mi...

Magnetic resonance spectroscopy (MRS) measurements of the lactate methyl proton in rat brain C6 glioma tissue acquired in the presence of an off-resonance irradiation field, analyzed using coupled Bloch equation formalism assuming two spin pools, demonstrated the occurrence of magnetization transfer. Quantitative analysis revealed that a very small fraction of lactate (f = 0.0012) is rotational...

The transient behavior of the longitudinal magnetization of the mobile protons in aqueous heterogeneous materials is investigated both theoretically and experimentally when selective saturation is applied by off-resonance, RF irradiation to the homogeneously broadened, immobile protons which are coupled to the mobile protons through cross relaxation. Analytical solution of this problem is obtai...