Curie Spin Relaxation - CASINORAW.NETLIFY.APP

PDF Spin and Carrier Relaxation Dynamics in InAsP Ternary Alloys, the Spin.
PDF Lanthanide-induced relaxation anisotropy.
Browse Articles | Nature Materials.
Magnetic dynamics with spin transfer torques near the Curie... - NIST.
Muon spin rotation in gadolinium above the Curie temperature.
Ferroelectric Control of Spin Polarization - Science.
Magnetochemistry | An Open Access Journal from MDPI.
Nuclear spin relaxation in paramagnetic solutions. Effects of large.
Towards the Rational Design of MRI Contrast Agents: Electron Spin.
NMR Consequences of the Nucleus-Electron Spin Interactions.
Molecular factors that determine Curie spin relaxation in... - DeepDyve.
Molecular factors that determine Curie spin relaxation in... - PubMed.
PDF Spin Lattice Relaxation - Digital CSIC.
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PDF Spin and Carrier Relaxation Dynamics in InAsP Ternary Alloys, the Spin.

The Curie-Spin contribution to the total spin-spin relaxation rate {R}_ {2} is about 25% and 50% at the magnetic field of 1.5 T (60 MHz for 1 H resonance) during the induction and ending stages of the aggregation process, respectively. At a lower magnetic field, this mechanism gives an insignificant contribution. Magnetic materials with a dilute random network of S = 1/2 sites can be considered as a combination of two sub-systems where the majority of constituent spins develop spin-liquid or valence bond. We now turn to measurements of the longitudinal spin relaxation time T 1,... has received funding from the European Union's Horizon 2020 research and innovation program under Marie Sklodowska-Curie grant agreement no. 765267 (QuSCO) and no. 792727 (SMERC). E.F. acknowledges support from the Agence Nationale de la Recherche (ANR) grant.

PDF Lanthanide-induced relaxation anisotropy.

KB T where µ is the spin magnetic moment and N is the probed number of spins per unit volume. The Curie coefficient, we observed a VRH behavior, which is mathematically 2 C = µkBN , is found to be 1.11±0.01×10−7 emu-K/g, given as [28]: which agrees with the values from other studies [11, 16]. Lanthanide ions accelerate nuclear spin relaxation by two primary mechanisms: dipolar and Curie. Both are commonly assumed to depend on the length of the lanthanide-nucleus vector, but not on its direction. Here we show experimentally that this is wrong - careful proton relaxation data analysis in a.

Browse Articles | Nature Materials.

A phenomenological approach is given to the problem of the relaxation process in ferroelectrics near the Curie temperature. It is shown that most of a... approach to the same problem is also made for a specific model of KD 2 PO 4 which is regarded as a kind of Ising spin system with two kinds of nearest neighbour interactions. Dynamical.

Magnetic dynamics with spin transfer torques near the Curie... - NIST.

Pic g-tensor (such as a nitroxide spin-label or EDTA-Mn2+) has proved to be a versatile tool. PRE analysis for such systems is simple, since there are no pseudo-contact shifts, and Curie-spin relaxation that could potentially exhibit signiﬁcant cross-correlation with other relaxation mechanisms [2,3], is negligible. Using this type of PRE. Spin-orbit coupling (SOC) describes the relativistic in-teraction between the spin and orbital momentum of elec-trons [1]. Spin-orbit coupling can drive rich phenomena, such as magnetic anisotropy [2], spin relaxation [3], mag-netic damping [4], anisotropic magnetoresistance [5], and the anomalous Hall effect [6]. Recently, the term spin orbi. The carrier and spin relaxation time in these structures were observed and demonstrated tunability to the excitation wavelengths, composition and... When grown using Molecular Beam Epitaxy (MBE), the Curie temperature (T c) of these structures is <100 K, however structures grown using Metalorganic Vapor phase Epitaxy (MOVPE) have T.

Muon spin rotation in gadolinium above the Curie temperature.

Jan 12, 2022 · The search for materials with high Curie or Néel temperatures is also a key aspect of this... S. et al. Large spin relaxation anisotropy and valley-Zeeman spin-orbit coupling in WSe 2 /Gr/hBN.

Ferroelectric Control of Spin Polarization - Science.

Explore the latest full-text research PDFs, articles, conference papers, preprints and more on SPIN RELAXATION. Find methods information, sources, references or conduct a literature review on SPIN. Below the Curie temperature Tc, an ultrafast photoexcitation with linearly-polarized light is shown to create a non-equilibrium hole spin population via the dynamical polarization of holes through p-d exchange scattering with ferromagnetically-ordered Mn spins, and we characterize their relaxation dynamics. The numbers of spin- polarized and spin- unpolarized electrons are determined by a balanced by spin relaxation and spin- pumping mechanisms. When the temperature increases the spin pumping rate decreases and the spin relaxation rate increases.... The Curie temperature T c is the temperature until which there is neighbor - neighbor alignment in.

Magnetochemistry | An Open Access Journal from MDPI.

Electron-spin relaxation is one of the determining factors in the efficacy of MRI contrast agents. Of... method chosen for measuring the rotational correlation times was analysis of the Curie relaxation of the ligand protons of the corresponding terbium complexes as described by Aime. Borel et al. Page 5. Chemistry. Author manuscript. In theory, Curie spin relaxation may also occur through contact coupling. Since Curie spin relaxation requires a correlation time much larger than the electron relaxation time τ FC(Curie) c =τ M and thus (for ω S τ M ≫1), using eqn (1.56), (1.102) where the term in parenthesis is related to.

Nuclear spin relaxation in paramagnetic solutions. Effects of large.

Muon spin relaxation and powder neutron diffraction have been combined to study three lithium cobalt nitride battery materials. Neutron diffraction shows that these retain the P6/mmm space group of Li 3 N with Co located only on Li(1) sites. The lattice parameters vary smoothly with the degree of metal substitution, such that the [Li 2 N] layers expand while the layer separation contracts, as. DOI: 10.1007/BF02407722 Corpus ID: 98119125. Muon spin rotation in gadolinium above the Curie temperature @article{Wckelgrd1989MuonSR, title={Muon spin rotation in gadolinium above the Curie temperature}, author={Ewa W{\"a}ckelg{\aa}rd and Ola Hartmann and Erik B. Karlsson and Roger W{\"a}ppling and L. Asch and G. Michael Kalvius and J. Chappert and Alain Le Yaouanc}, journal={Hyperfine.

Towards the Rational Design of MRI Contrast Agents: Electron Spin.

The longitudinal relaxation time. Solving this di erential equation yields Mz(t) = M0 +(Mz(0) M0)e t T1: (1.32) b) Transverse Relaxation Transverse relaxation arises from the interactions of spins between each other. As a result of this interaction, the energy which causes a spin to precess in the xy-plane will decay such that for long times.

NMR Consequences of the Nucleus-Electron Spin Interactions.

Nuclear spin singlet states are often found to allow long-lived storage of nuclear magnetization, which can form the basis of novel applications in spectroscopy, imaging, and in studies of dynamic processes. Precisely how long such polarization remains intact, and which factors affect its lifetime is often difficult to determine and predict. Superparamagnetism is a form of magnetism which appears in small ferromagnetic or ferrimagnetic nanoparticles.In sufficiently small nanoparticles, magnetization can randomly flip direction under the influence of temperature.

Molecular factors that determine Curie spin relaxation in... - DeepDyve.

Its high and low frequency limits) follows Curie-Weiss law χ C/(T −θ), where C is the Curie constant and θ is the Weiss temperature that depends on the average strength of intermolecular magnetic interactions. This shows that linear susceptibility experiments measure SLR to thermal equi-librium and not spin-spin relaxation within the. Hyperfine Interactions 15/16 (1983) 617-620 617 9 J.C. Baltzer Scientific Publishing Company NUCLEAR SPIN RELAXATION OF 161Dy IN Gd ABOVE THE CURIE TEMPERATURE OBSERVED WITH THE M~SSBAUER EFFECT* Ataur R. Chowdhury, Gary S. Collins and Christoph Hohenemser Department of Physics, Clark University, Worcester, MA 01610, USA Using a source of 16170, Welhave observed a substantial linewidth anomaly. Jun 16, 2022 · The authors show that an out-of-plane antidamping spin–orbit torque can produce a sizeable change in the switching dynamics of a magnetic layer with perpendicular anisotropy.

Molecular factors that determine Curie spin relaxation in... - PubMed.

From the metal for the low-spin complex, and between 10 to 25 Å for the high-spin complex. Comparison of the experimental data with predictions from crystal structure data showed that the anisotropy of the magnetic susceptibility tensor in low spin cyano-met-myoglobin significantly influences the cross-correlated dipole-dipole-Curie-spin. The carrier and spin dynamics of the diluted ferromagnetic semiconductor GaMnAs are crucial to understanding its ferromagnetic nature, especially near the Curie temperature (T C).Herein, transient differential reflectivity measurements and the temporal evolution of Kerr rotation are shown using ultrafast optical spectroscopy at various temperatures.

PDF Spin Lattice Relaxation - Digital CSIC.

The calculated results indicate that the low-temperature relaxation follows variable range hopping behavior, whereas the high-temperature one takes place according to the Arrhenius model.... the temperature-dependent inverse susceptibility plots are fitted with the Curie-Weiss formula:... This can be ascribed to the spin-reorientation,.

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Chemical shifts and spin–spin coupling constants in four complexes were examined using the spin–orbit zeroth-order regular approximation (ZORA) at the density functional theory (DFT) level, as well as the relaxation parameters (T 1 and T 2). Examining the required spectral properties of NMR-QIP, all the designed complexes were found to be.