نتایج جستجو برای: transition moment
تعداد نتایج: 319246 فیلتر نتایج به سال:
The 5d transition metal oxide Cd2Os2O7 having a pyrochlore lattice of Os atoms exhibits a metal-insulator transition with a magnetic ordering at 227 K, but the magnetic structure in the ordered state and the origin of the transition have not yet been specified. The commensurate magnetic reflection with the propagation vector k = (0, 0, 0) was first observed in the resonant X-ray scattering usin...
We present evidence for an isostructural, first-order Mott transition in MnO at 105+/-5 GPa, based on high-resolution x-ray emission spectroscopy and angle-resolved x-ray diffraction data. The pressure-induced structural and spectral changes provide a coherent picture of MnO phase transitions from paramagnetic B1 to antiferromagnetic distorted B1 at 30 GPa, to paramagnetic B8 at 90 GPa, and to ...
The objectives of utilizing the most out scientific, technical and production potential Russian Fuel Energy Complex (FEC) to safeguard technological independence economic development at state energy transition is reviewed in paper. Main trends for required multidimentional FEC: local R&D manufacturing conventional industries, Industry 4.0 technologies (including all aspects reduce, reuse, r...
The material metrics for optimal laser cooling of ion-doped solids are derived using atomic and molecular dynamics properties of the constituents. The anti-Stokes process is modeled as an optical phonon coupling of the bound electron, followed by a photon absorption. The transition dipole moment is estimated using a simplified charge-displacement model and the Judd–Ofelt theory of rare-earth io...
The development of new materials suitable for electrooptical studies has recently received a great deal of attention. One strategy deals with the preparation of zwitterionic molecules which are provided with a very high ground-state dipole moment [1, 2]. Michl and coworkers have presented in 1999 a tropylium ylide [12-C7H6-CB11H11] with a dipole moment of 11.25 D and a first hyperpolarizability...
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