نتایج جستجو برای: high spin state
تعداد نتایج: 2856353 فیلتر نتایج به سال:
Open AccessCCS ChemistryRESEARCH ARTICLE10 May 2022Topological Defects Induced High-Spin Quartet State in Truxene-Based Molecular Graphenoids Can Li†, Yu Liu†, Yufeng Fu-Hua Xue, Dandan Guan, Yaoyi Li, Hao Zheng, Canhua Liu, Jinfeng Jia, Pei-Nian Deng-Yuan Li and Shiyong Wang Li† *Corresponding authors: E-mail Address: [email protected] Key Laboratory of Artificial Structures Quantum Control, M...
The spin-flip approach has been applied to calculate vertical and adiabatic energy separations between low-lying singlet and triplet states in diradicals. The spin-flip model describes both closedand open-shell singlet and ~low-spin! triplet states within a single reference formalism as spin-flipping, e.g., a→b , excitations from a high-spin triplet (M s51) reference state. Since both dynamical...
Using density functional theoryþHubbard U (DFTþU) calculations, we investigate how aluminum affects the spin crossover of iron in MgSiO3 perovskite (Pv) and post-perovskite (Ppv), the major mineral phases in the Earth’s lower mantle. We find that the presence of aluminum does not change the response of iron spin state to pressure: only ferric iron (Fe3þ) in the octahedral (B)-site undergoes a c...
Electron and nuclear spins associated with point defects in insulators are promising systems for solid-state quantum technology. The electron spin is usually used for readout and addressing, and nuclear spins are used as exquisite quantum bits and memory systems. With these systems, single-shot readout of single nuclear spins as well as entanglement, aided by the electron spin, have been shown....
The Bethe ansatz equations for the spin 1/2 Heisenberg XXZ spin chain are numerically solved, and the energy eigenvalues are determined for the anti-ferromagnetic case. We examine the relation between the XXZ spin chain and the Thirring model, and show that the spectrum of the XXZ spin chain is different from that of the regularized Thirring model.
Coherent control of the nitrogen-vacancy (NV) center in diamond’s triplet spin state has traditionally been accomplished with resonant ac magnetic fields. Here, we show that high-frequency stress resonant with the spin state splitting can also coherently control NV center spins. Because this mechanical drive is parity nonconserving, controlling spins with stress enables direct access to the mag...
We investigate the use of resonant optical Raman pulses to excite and rephase ground state spin coherences via the partial storage or shelving of atoms. Unlike direct-rf-excited spin echoes or off-resonant Raman echoes, the resonant Raman optical field efficiently excites and rephases the spin coherence using p and 2p pulses, respectively. In a crystal of Pr doped Y2SiO5, we experimentally obse...
The lightly doped La2CuO4 of the high temperature superconducting Cu oxides shows spin glass behavior at very low temperatures, which reflects the effects of quantum fluctuations and frustration upon doping. Recent neutron scattering experiments revealed a formation of spin stripes at the same low concentration of doping. A specific relation between the two important properties of spin glass be...
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