Deformation mechanism coherent migration of charges in thin film

2021 ◽  
Vol 2131 (5) ◽  
pp. 052088
Author(s):  
T Khudaiberganov ◽  
D Bukharov ◽  
S Arakelian
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Potential Energy ◽  
Charge Transport ◽  
Deformation Mechanism ◽  
Transmission Spectrum ◽  
Closed Shell ◽  
Teller Effect ◽  
Jahn Teller ◽  
Jahn Teller Effect

Abstract We present new mechanism of the charge transport in thin films based on coherent migration of the deformation of the nanoclusters potential, which carries with it an electron. We represent correlation between deformation and charges as the distorton-inverson quasiparticle. This effect is based on the inversion of the potential energy of nanoclusters due to the Jahn-Teller effect in a nanocluster, when charges flow in a network of nanoclusters. The distorton-inverson is quasiparticle are consisted the distorton and electron or hole, this quasiparticle similar an inverson in the Watkins effect. A distorton is quasiparticle which appears itself in the effects of deformation of the potential of the nanocluster with not closed shell. This quasiparticle is similar a defecton in the Watkins effect. We are calculated transmission spectrum and dispersion properties this quasiparticle.

Triangulation of the Lowest Energy Sheet for Jahn-Teller Potential Energy Surfaces

1986 ◽  
Vol 41 (3) ◽  
pp. 532-534
Author(s):  
Ariel Fernández
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Potential Energy Surfaces ◽  
Lower Energy ◽  
Energy Surface ◽  
Teller Effect ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Energy Surfaces

The topology of the lower energy sheet for the Potential Energy Surface corresponding to the dynamic Jahn-Teller effect is obtained by means of homological techniques.

Potential energy surfaces and Jahn-Teller effect on CH4⋯NO complexes

2007 ◽  
Vol 127 (10) ◽  
pp. 104305 ◽  
Author(s):  
Rachel Crespo-Otero ◽  
Reynier Suardiaz ◽  
Luis Alberto Montero ◽  
José M. García de la Vega
Keyword(s):  
Potential Energy ◽  
Potential Energy Surfaces ◽  
Teller Effect ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Energy Surfaces

scholarly journals Spin Crossover and Magnetic-Dielectric Bistability Induced by Hidden Pseudo-Jahn–Teller Effect

2020 ◽  
Vol 6 (4) ◽  
pp. 64
Author(s):  
Isaac B. Bersuker
Keyword(s):  
Spin Crossover ◽  
Relaxation Times ◽  
Closed Shell ◽  
Teller Effect ◽  
High Symmetry ◽  
Molecular Systems ◽  
Higher Spin ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
High Space

In a semi-review paper, we show that the hidden Jahn–Teller effect (JTE) and pseudo-JTE (PJTE) in molecular systems and solids, under certain conditions lead to the formation of two coexisting stable space configurations with different magnetic and dielectric properties, switchable by external perturbations. One of the stable configurations has a high space symmetry and a non-zero or higher spin (HS) (non-zero magnetic moment), the other being distorted, but with zero or lower spin (LS). The number of systems with hidden JTE or PJTE is innumerable; we demonstrate this on the (no exhaustible, too) group of systems with half-filed closed-shell degenerate electronic (orbital or band) configurations e2 and t3. The spin-crossover-change from the high symmetry HS arrangement to the low-symmetry LS geometry is accompanied by (driven by the PJTE) orbital disproportionation, in which the system prefers spins-paired states with two electrons on the same orbital (and lower symmetry charge distribution) over the Hund’s spin-parallel arrangement involving several orbitals. Ab initio calculations previously carried out on a series of molecular systems and clusters in crystals, including CuF3, Si3, Si4, Ge4, C4H4, Na4−, C603−, CuO6 (in two crystal environments, LiCuO2 and NaCuO2), etc., confirmed the general theory and allowed for estimates of the parameter values including relaxation times. The hidden JTE and PJTE are thus general tools for search and studies of polyatomic systems with bistabilities.

Luminescence Properties of Thin-Film SrS:Cu Phosphors for Electroluminescent Displays

1998 ◽  
Vol 508 ◽  
Author(s):  
T.C. Jones ◽  
W. Park ◽  
E. Mohammed ◽  
B.K. Wagner ◽  
C.J. Summers ◽  
...  
Keyword(s):  
Thin Film ◽  
Fine Structure ◽  
Peak Shift ◽  
Peak Position ◽  
Teller Effect ◽  
Field Analysis ◽  
Excitation Wavelength ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Rigorous Treatment

AbstractThe origin of the electronic fine structure in thin-film SrS:Cu has been interpreted in terms of the several possible perturbations including spin-obit coupling, the Jahn-Teller effect and low symmetry splittings. Photoluminescence excitation measurements showed that the peak position of the excitation bands were independent of temperature suggesting that the electronic fine structure in our system was not due to the Jahn-Teller effect. Selective excitation measurements revealed that no peak shift occurs with changing excitation wavelength, indicating that Cu+ pairs or aggregates and Cu+-defect coupled centers were not existent in our system. Finally, several models were proposed for off-center displacements of Cu in SrS, since a rigorous treatment of these displacements is difficult. Both the tetragonal and trigonal distortion models for a <111> displacement yielded reasonable distortions parameters of 0. 16Å and 0.11Å, respectively. However, crystal field analysis showed that a <110> displacement was more likely since the energy level splitting scheme more closely resembled the observed data.

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