spin relaxation वाक्य
उदाहरण वाक्य
मोबाइल
- However, their effect on nuclear spin relaxation results in measurable nuclear Overhauser effects ( NOEs ).
- Like spin-lattice relaxation, spin-spin relaxation can be studied using a molecular tumbling autocorrelation framework.
- Unlike spin-lattice relaxation, considering spin-spin relaxation using only a single isochromat is trivial and not informative.
- The spin-spin relaxation time, also called the transverse relaxation time, is related to homogeneous and inhomogeneous broadening.
- A Hahn echo decay experiment can be used to measure the spin spin relaxation time, as shown in the animation below.
- Figure 1 : Nuclear spin relaxation properties in a simplified pore are divided into bulk volume V and pore surface area S.
- He formulated also a successive and notable statistical theory of spin relaxation and diffusion in solids based on the approach of the non-equilibrium statistical operator of Dmitry Zubarev.
- Electrons " remember " the direction of spin within the so-called spin relaxation length ( or spin diffusion length ), which can significantly exceed the mean free path.
- A nanomagnet can have enhanced electronic properties due to size effect, such as long spin relaxation time of conduction electron, which may be useful for nano-scale spintronic device.
- He was the first to develop a comprehensive theoretical basis of the nuclear spin relaxation of biomolecules in terms of motional mean-square amplitudes ( order parameters ) as well as rates of structural fluctuations.
- In simple cases, the intensity of the echo relative to the initial signal is given by " e " 2t / T 2 " where T 2 is the time constant for spin-spin relaxation.
- Where " j " is current density in the sample, " ! " sN and " ! " sF are the length of the spin relaxation in a non-magnetic and magnetic materials, respectively.
- Owing to rapid spin relaxation, the electron-nuclear coupling is not observed in the NMR spectrum, so the affected nuclear resonance appears at the average of the two coupled energy states, " weighted according to their spin populations ".
- In physics, the "'spin spin relaxation "'is the mechanism by which, the transverse component of the magnetization vector, exponentially decays towards its equilibrium value in nuclear magnetic resonance ( NMR ) and magnetic resonance imaging ( MRI ).
- The mechanisms of nuclear-spin energy-coupling have been extensively characterized and are described in the following articles : Angular momentum coupling, Magnetic dipole dipole interaction, J-coupling, Residual dipolar coupling, Nuclear Overhauser effect, Spin spin relaxation, and Spin saturation transfer.
- This relaxation process is described by the spin-lattice relaxation time T 1, which is a characteristic time needed by the magnetization to return to the z-axis, and by the spin-spin relaxation time T 2, which describes the vanishing time of the magnetization in the xy-plane.
- Where " ! " s is the average length of spin relaxation, and the z coordinate is measured from the boundary between the magnetic and non-magnetic layers ( z AS or by the so-called interface resistance ( inherent to the boundary between a ferromagnet and non-magnetic material)
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