Zobrazeno 1 - 10
of 79
pro vyhledávání: '"SANDU, TITUS"'
Publikováno v:
Nanomaterials 2022, 12(10), 1682
The success of a ferroelectric tunnel junction (FTJ) depends on the asymmetry of electron tunneling as given by the tunneling electroresistance (TER) effect. This characteristic is mainly assessed considering three transport mechanisms: direct tunnel
Externí odkaz:
http://arxiv.org/abs/2202.12672
Publikováno v:
ROMJIST, Vol. 22(1), 2019, pp. 3-13
Theoretically, the presence of a metallic nanoparticle enhances the intermolecular energy transfer. We calculate this enhancement factor with a modal approach pertaining analytical results in the case of a nanosphere. We calculate the Green's functio
Externí odkaz:
http://arxiv.org/abs/1907.00828
Autor:
Sandu, Titus, Tibeica, Catalin
Publikováno v:
Appl. Surf. Sci., 492 (2019) 309-313
Thermal conductivity of nanocrystalline and ultra-nanocrystalline films is analyzed with effective medium theory (EMT) models. The existing EMT models use the spherical inclusion approximation. Although this approximation works quite well it is incon
Externí odkaz:
http://arxiv.org/abs/1907.00753
Publikováno v:
In Results in Physics April 2023 47
Autor:
Voicu, Rodica Cristina, Gologanu, Mihai, Tibeica, Catalin, Santiago-Calvo, Mercedes, Asensio, María, Cañibano, Esteban, Nedelcu, Oana, Sandu, Titus
Publikováno v:
Nanomaterials (2079-4991); Sep2024, Vol. 14 Issue 17, p1403, 11p
Extensive numerical calculations show that the capacitance of back-gated nanowires with various degrees of dielectric embeddings is accurately described with an effective dielectric constant as long as the difference between the dielectric thickness
Externí odkaz:
http://arxiv.org/abs/1504.05713
Autor:
Sandu, Titus
Publikováno v:
Rom. Journ. Phys. 60 (5-6), 711-715 (2015)
The Rabi Hamiltonian is studied in the dispersive regime and ultra-strong coupling. We employ a recent unitary transformation to obtain not only the approximate Hamiltonian and its energy levels but also its eigenfunctions. The relationship of the ap
Externí odkaz:
http://arxiv.org/abs/1502.00514
Publikováno v:
Journal of Applied Physics 114, 224904 (2013)
The capacitance of an arbitrarily shaped object is calculated with the same second-kind integral equation method used for computing static and dynamic polarizabilities. The capacitance is simply the dielectric permittivity multiplied by the area of t
Externí odkaz:
http://arxiv.org/abs/1401.1655
Autor:
Sandu, Titus
Publikováno v:
Plasmonics (2013) 8:391-402
I present a direct and intuitive eigenmode method that evaluates the near-field enhancement around the surface of metallic nanoparticles of arbitrary shape. The method is based on the boundary integral equation in the electrostatic limit. Besides the
Externí odkaz:
http://arxiv.org/abs/1305.6807
The capacitance of arbitrarily shaped objects is reformulated in terms of the Neumann-Poincar\'{e} operator. Capacitance is simply the dielectric permittivity of the surrounding medium multiplied by the area of the object and divided by the squared n
Externí odkaz:
http://arxiv.org/abs/1304.6624