spin density

spin den·si·ty

the number of nuclear dipoles per unit volume.

spin density

a measure of the hydrogen concentration in magnetic resonance (MR) imaging. It is proportional to the number of hydrogen nuclei precessing at the Larmor frequency and contributing to the MR signal. See also Larmor frequency.

spin den·si·ty

(spin den'si-tē)
The number of nuclear dipoles per unit volume.
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References in periodicals archive ?
Here, VWN: Vosko, Wilk, and Nusair 1980 correlation functional(III) fitting the random phase approximation ( RPA ) solution to the uniform electron gas, often referred to as Local Spin Density (LSD) correlation [8] (functional III in this article).
Nusair, Accurate Spin-Dependent Electron Liquid Correlation Energies for Local Spin Density Calculations: A Critical Analysis, Can.
Weiss, who has been intimately involved in the effort to verify the predictions of quantum mechanics by describing the positions, momenta and spin density of electrons on atoms, was also the original organizer of the Sagamore Conferences, in which thousands of researchers participated in studying the complexity of electron arrangements.
The spin polarization of the tunneled electrons through the junction gives rise to a nonequilibrium spin density in the superconductor.
The form of the phase spectrum and corresponding expressions for the asymmetries are obtained on the basis of a formalism of a spin density matrix.
It can also occur because of dipolar interaction of the electron spin through space with nuclei in neighbor molecules and because of transfer of spin density through orbital overlap to a neighbor molecule.
064, is relatively small but, summed up over the four nitrogen atoms, does amount to an ~30% of the spin density being delocalized away from the copper.
Part of the spin density is also localized in the dyz orbital (structure 5), while in structure 6 the dxz and dz2 orbitals are also involved (cf.
Comparing structures 2 and 7 with in structure 7, which has proper axial ligation, the interaction between copper and nitrogen from imidazole decreases the spin density on the four nitrogen atoms of the porphyrin to a value of 0.
c] = 42 K, the highest of any 2-1-4 system, while long range spin density wave magnetic order of the Cu moments is also observed in this material.
The formation of the Cr spin density wave below [T.