High-temperature magnetism of kinetic origin emerges when the Fermi-Hubbard model is doped away from half-filling. Magnetic susceptibility measurements and analysis charge-spin-spin correlators demonstrate emergence magnetic correlations as system cooled down.

The magnetic susceptibility of underdoped yttrium and lanthanum cuprates is interpreted based on the self-consistent solution of the t-J model of a Cu-O plane. The calculations reproduce correctly the frequency dependencies of the susceptibility in YBa2Cu3O7−y and La2−xSrxCuO4 attributing their dissimilarity to the difference in the damping of spin excitations. In YBa2Cu3O7−y these excitations ...

INTRODUCTION : Magnetic susceptibility difference between brain gray and white matter results in strong phase contrast between these two types of tissues at high magnetic field strength (1, 2). Here, we report, for the first time, a surprising observation of tissue-level magnetic susceptibility anisotropy in the central nervous system (CNS) using a mouse model. Specifically, we propose a method...

In situ multi-frequency measurements of magnetic susceptibility as an indicator of planetary regolith maturity Journal Article How to cite: Bentley, Mark S.; Ball, Andrew J.; Potter, David K.; Wright, Ian P. and Zarnecki, John C. (2009). In situ multi-frequency measurements of magnetic susceptibility as an indicator of planetary regolith maturity. Planetary and Space Science, 57(12), pp. 1491–1...

BACKGROUND Proton resonance frequency shift (PRFS) magnetic resonance (MR) thermometry exploits the local magnetic field changes induced by the temperature dependence of the electron screening constant of water protons. Any other local magnetic field changes will therefore translate into incorrect temperature readings and need to be considered accordingly. Here, we investigated the susceptibili...

A simple measurement of the magnetic susceptibility a material can reveal population specific quantum states in material.

By means of ac magnetic-susceptibility measurements, we find evidence for a new magnetic phase of Tb2Ti2O7 below about 140 mK in zero magnetic field. In magnetic fields parallel to [111], this phase is characterized by frequency- and amplitude-dependent susceptibility and extremely slow spin dynamics. In the zero-temperature limit, it extends to about 67 mT (the internal field H(int)≃52  mT), a...

Cerebral development involves a complex cascade of events which are difficult to visualize and quantify in vivo. In this study we combine information from Diffusion Tensor Imaging (DTI) and Quantitative Susceptibility Mapping (QSM) to analyze developing mouse brains at five stages up to 56days postnatal. Susceptibility maps were calculated using frequency shifts in gradient echo MR images acqui...

The paramagnetic insulator to ferromagnetic metal transition in Lanthanum manganites and the associated magnetoresistive phenomena is treated by considering the localization due to random hopping induced by slowly fluctuating spin configurations and electron-electron interactions. The transition temperature and its variation with composition is derived. The primary effect of the magnetic field ...