Risultati di ricerca
1 giorno fa · Both the ground (J) and first excited (\(J+1\)) multiplets are split by crystal field (CF). At sufficiently low temperature just the ground CF (Stark) level is populated. This level may well be degenerate; we shall deliberately concentrate on high-symmetry model systems, so degeneracy due to crystal symmetry is likely.
1 giorno fa · The source of SHG in monolayer WS 2 is the non-centrosymmetric spatial distribution of the W, S atoms in the crystal armchair direction. Although the SHG signals are expected to be generated in ...
4 giorni fa · The complexity of interactions between the crystal-field and unusual non-collinear spin arrangement in non-trivial magnets demands novel tools to unravel the mystery underneath. In this work, we study such interaction dynamics of crystal-field-excitations (CFE) and low-energy magnetic excitations in orthochromite TmCrO3 with controls of temperature and magnetic field using high-resolution ...
4 giorni fa · We investigate Dy-based coordination polymer C11H18DyN3O9 (Dy-CP) exhibiting single-ion magnet (SIM) properties, e.g., quantum tunnelling of magnetization (QTM), magnetic anisotropy, magnetic relaxation, and effective energy barrier (Ueff). To elucidate the underlying mechanisms, crystal field parameters (CF
2 giorni fa · Inorganic materials doped with chromium (Cr) ions generate remarkable and adjustable broadband near-infrared (NIR) light, offering promising applications in the fields of imaging and night vision technology. However, achieving high efficiency and thermal stability in these broadband NIR phosphors poses a significant challenge for their practical application. Here, we employ crystal field ...
5 giorni fa · The term zero-point field (ZPF) can be used when referring to a specific vacuum field, for instance the QED vacuum which specifically deals with quantum electrodynamics (e.g., electromagnetic interactions between photons, electrons and the vacuum) or the QCD vacuum which deals with quantum chromodynamics (e.g., color charge ...
3 giorni fa · Crystal field splitting is rather small for the lanthanide ions and is less important than spin–orbit coupling in regard to energy levels. Transitions of electrons between f orbitals are forbidden by the Laporte rule. Furthermore, because of the "buried" nature of the f orbitals, coupling with molecular vibrations is weak.
