Results 11 to 20 of about 6,215 (212)
Representation of population exchange at level anti-crossings [PDF]
Magnetic Resonance, 2020 A theoretical framework is proposed to describe the spin dynamics driven by coherent spin mixing at level anti-crossings (LACs). We briefly introduce the LAC concept and propose to describe the spin dynamics using a vector of populations of the diabatic ...
B. A. Rodin +3 more
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Preparation of Nuclear Spin Singlet States Using Spin-Lock Induced Crossing [PDF]
Physical Review Letters, 2013 We introduce a broadly applicable technique to create nuclear spin singlet states in organic molecules and other many-atom systems. We employ a novel pulse sequence to produce a spin-lock induced crossing (SLIC) of the spin singlet and triplet energy levels, which enables triplet/singlet polarization transfer and singlet state preparation.
Devience, Stephen +2 more
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Investigation of the spin-forbidden process in thymine [PDF]
Hemijska Industrija, 2012 The intersystem crossing rate from the lowest singlet to the lowest triplet state of thymine was studied by means of the ab initio methods. The rate was calculated employing the time-dependent approach based on the correlation function.
Etinski Mihajlo R.
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Accessing long-lived nuclear singlet states between chemically equivalent spins without breaking symmetry [PDF]
Nature Physics, 2012 Long-lived nuclear spin states could greatly enhance the applicability of hyperpolarized nuclear magnetic resonance. Using singlet states between inequivalent spin pairs has been shown to extend the signal lifetime by more than an order of magnitude compared to the spin lattice relaxation time (T1), but they have to be prevented from evolving into ...
Yesu, Feng +2 more
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Competing spin-orbital singlet states in the 4d^{4} honeycomb ruthenate Ag_{3}LiRu_{2}O_{6}
Physical Review Research, 2022 When spin-orbit-entangled d electrons reside on a honeycomb lattice, rich quantum states are anticipated to emerge, as exemplified by the d^{5} Kitaev materials. Distinct yet equally intriguing physics may be realized with a d-electron count other than d^
T. Takayama +27 more
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Molecules, 2020 Many chemical reactions of transition metal compounds involve a change in spin state via spin inversion, which is induced by relativistic spin-orbit coupling.
Toshiyuki Takayanagi +2 more
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Effect of temperature on rate of the spin-forbidden transition in uracil and thymine [PDF]
Journal of the Serbian Chemical Society, 2013 The intersystem crossing rates of uracil and thymine molecules in interaction with the heat bath were studied by means of the ab initio methods. The rates were calculated employing the time-dependent approach based on the correlation function.
Etinski Mihajlo
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Physical Review X, 2020 High-spin states play a key role in chemical reactions found in nature. In artificial molecular systems, singlet fission produces a correlated triplet-pair state, a spin-bearing excited state that can be harnessed for more efficient solar-energy ...
S. L. Bayliss +6 more
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Spin-Dependent Phenomena in Semiconductor Micro-and Nanoparticles—From Fundamentals to Applications
Applied Sciences, 2020 The present overview of spin-dependent phenomena in nonmagnetic semiconductor microparticles (MPs) and nanoparticles (NPs) with interacting nuclear and electron spins is aimed at covering a gap between the basic properties of spin behavior in solid-state
Vladimir M. Fomin, Victor Yu. Timoshenko
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Nuclear conversion theory: molecular hydrogen in non-magnetic insulators [PDF]
Royal Society Open Science, 2016 The hydrogen conversion patterns on non-magnetic solids sensitively depend upon the degree of singlet/triplet mixing in the intermediates of the catalytic reaction. Three main ‘symmetry-breaking’ interactions are brought together.
Ernest Ilisca, Filippo Ghiglieno
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