Zobrazeno 1 - 10
of 351
pro vyhledávání: '"Wolf Gero Schmidt"'
Publikováno v:
Surfaces, Vol 7, Iss 1, Pp 79-87 (2024)
Density-functional theory calculations on P-rich InP(001):H surfaces are presented. Depending on temperature, pressure and substrate doping, hydrogen desorption or adsorption will occur and influence the surface electronic properties. For p-doped sam
Externí odkaz:
https://doaj.org/article/244d209139e6406f914423146efbfbb3
Publikováno v:
Crystals, Vol 14, Iss 1, p 5 (2023)
Batteries based on heavier alkali ions are considered promising candidates to substitute for current Li-based technologies. In this theoretical study, we characterize the structural properties of a novel material, i.e., F-doped RbTiOPO4 (RbTiPO4F, RT
Externí odkaz:
https://doaj.org/article/822a644c3467464ba9ba43fd9439f1a2
Autor:
Sergej Neufeld, Uwe Gerstmann, Laura Padberg, Christof Eigner, Gerhard Berth, Christine Silberhorn, Lukas M. Eng, Wolf Gero Schmidt, Michael Ruesing
Publikováno v:
Crystals, Vol 13, Iss 10, p 1423 (2023)
The crystal family of potassium titanyl phosphate (KTiOPO4) is a promising material group for applications in quantum and nonlinear optics. The fabrication of low-loss optical waveguides, as well as high-grade periodically poled ferroelectric domain
Externí odkaz:
https://doaj.org/article/c36298a10c2a436c9f120465279b50b1
Publikováno v:
ACS Omega, Vol 7, Iss 6, Pp 5064-5068 (2022)
Externí odkaz:
https://doaj.org/article/06d49acc6f984e8bb6b27fc65d6bfc4e
Publikováno v:
ACS Omega, Vol 6, Iss 9, Pp 6297-6304 (2021)
Externí odkaz:
https://doaj.org/article/63576758bcfb4fc0af509e458f6f442a
Publikováno v:
ACS Omega, Vol 5, Iss 37, Pp 24057-24063 (2020)
Externí odkaz:
https://doaj.org/article/c0226fac917d46af9ef76bcb0b88b17f
Publikováno v:
Crystals, Vol 12, Iss 11, p 1586 (2022)
Hole polarons and defect-bound exciton polarons in lithium niobate are investigated by means of density-functional theory, where the localization of the holes is achieved by applying the +U approach to the oxygen 2p orbitals. We find three principal
Externí odkaz:
https://doaj.org/article/a23260bed9de40c69e06eb9124a52832
Autor:
Laura Padberg, Viktor Quiring, Adriana Bocchini, Matteo Santandrea, Uwe Gerstmann, Wolf Gero Schmidt, Christine Silberhorn, Christof Eigner
Publikováno v:
Crystals, Vol 12, Iss 10, p 1359 (2022)
We study the DC conductivity in potassium titanyl phosphate (KTiOPO4, KTP) and its isomorphs KTiOAsO4 (KTA) and Rb1%K99%TiOPO4 (RKTP) and introduce a method by which to reduce the overall ionic conductivity in KTP by a potassium nitrate treatment. Fu
Externí odkaz:
https://doaj.org/article/6823b46dcfb440a5be2a8dcc8fb03913
Publikováno v:
ACS Omega, Vol 4, Iss 2, Pp 3850-3859 (2019)
Externí odkaz:
https://doaj.org/article/a376a490a31447d5b9163de82c2022ef
Electron Polarons in Lithium Niobate: Charge Localization, Lattice Deformation, and Optical Response
Publikováno v:
Crystals, Vol 11, Iss 5, p 542 (2021)
Lithium niobate (LiNbO3), a material frequently used in optical applications, hosts different kinds of polarons that significantly affect many of its physical properties. In this study, a variety of electron polarons, namely free, bound, and bipolaro
Externí odkaz:
https://doaj.org/article/edad27f4b2b04d50ae98e71cd4f98b8d