Results 41 to 50 of about 123,359 (254)

Bi-tunable terahertz absorber based on strontium titanate and Dirac semimetal.

Optics Express, 2020
We proposed a polarization-insensitive absorber based on strontium titanate (STO) and bulk Dirac semimetal (BDS) in the terahertz (THz) region. The center frequency of the absorption peak can be independently regulated by temperature or Fermi energy ...
H. Xiong, Yue-Hong Peng, Fan Yang, Zhijing Yang, Zhenni Wang   +4 more
semanticscholar   +1 more source

Metallicity and Superconductivity in Doped Strontium Titanate [PDF]

Annual Review of Condensed Matter Physics, 2018
Strontium titanate is a wide-gap semiconductor avoiding a ferroelectric instability thanks to quantum fluctuations. This proximity leads to strong screening of static Coulomb interaction and paves the way for the emergence of a very dilute metal with ...
C. Collignon, Xiao Lin, C. Rischau, B. Fauqu'e, Kamran Behnia   +4 more
semanticscholar   +1 more source

Electron paramagnetic resonance of manganese-doped strontium titanate [PDF]

Cerâmica
Electron paramagnetic resonance (EPR) spectra of manganese-doped strontium titanate were investigated for several Mn concentrations. The spectra of Mn2+ and Mn4+ ions were observed and attributed, respectively, to Mn ions occupying Sr2+ and Ti4+ sites ...
R. S. de Biasi, M. L. N. Grillo
doaj   +2 more sources

Elastic effects of vacancies in strontium titanate: Short- and long-range strain fields, elastic dipole tensors, and chemical strain

, 2009
We present a study of the local strain effects associated with vacancy defects in strontium titanate and report the first calculations of elastic dipole tensors and chemical strains for point defects in perovskites.
D. Roundy, Daniel A. Freedman, E. Polak, F. S. Galasso, M. E. Lines, M. R. Hestenes, T. A. Arias   +6 more
core   +1 more source

Studies on Nano Barium Strontium Titanate/Cellulose Derivatives Composites [PDF]

علوم و تکنولوژی پلیمر, 2009
Studies were carried out on the preparation and properties of the composites made from cellulose acetate butyrate and cellulose acetate propionate with various amounts of barium strontium titanate nano-particle.
Y. Hamzeh, A.H. Rahbari, M. Enhessari, Gh. Ebrahimi   +3 more
doaj   +1 more source

Microscopic mechanisms for the Fermi-liquid behavior of Nb-doped strontium titanate

, 2012
The relaxation rate in Nb-doped strontium titanate involving different scattering channels is investigated theoretically. It is demonstrated that the total relaxation rate in SrTiO_{3} is provided mainly by two mechanisms.
Devreese, J. T., Klimin, S. N., Tempere, J., van der Marel, D.   +3 more
core   +2 more sources

Structure, morphology, dielectric study of Ba-doped SrTiO3 by sol-gel method for optical applications

Results in Chemistry, 2023
The goal of this study is to fabricate barium-doped strontium titanate nanomaterial utilizing the sol–gel technique and a range of barium nitrate concentrations. Electrical Structural properties, CV, FTIR, and SEM of all samples had been studied.
Muhammad Junaid, Khalid Mujasam Batoo, Sonam Ghulam Hussain, Sajjad Hussain   +3 more
doaj   +1 more source

Enhanced superconductivity close to a non-magnetic quantum critical point in electron-doped strontium titanate. [PDF]

Nat Commun, 2019
Studies on quantum critical points (QCP) have focused on magnetic QCPs to date. Remarkable phenomena such as superconductivity due to avoided criticality have been discovered, but we focus here on the non-magnetic counterpart, i.e., the superconductivity
Tomioka Y, Shirakawa N, Shibuya K, Inoue IH.   +3 more
europepmc   +2 more sources

Strain-engineered interaction of quantum polar and superconducting phases

, 2019
Much of the focus of modern condensed matter physics concerns control of quantum phases with examples that include flat band superconductivity in graphene bilayers, the interplay of magnetism and ferroelectricity, and induction of topological transitions
Balatsky, Alexander V.,, Cerbin, Jonah,, Dunnett, Kirsty,, Herrera, Chloe,, Jayakody, Amani,, Sochnikov, Ilya,   +5 more
core   +1 more source

Effect of Bi³⁺ Doping on the Electronic Structure and Thermoelectric Properties of (Sr_0.889-xLa_0.111Bi_x)TiO_2.963: First-Principles Calculations

Crystals, 2023
The electronic structure and thermoelectric properties of Bi3+-doped (Sr0.889-xLa0.111Bix)TiO2.963 were studied by the first principles method. Doping Bi3+ can increase the cell parameters, cell asymmetry and band gap.
Lingyun Gong, Ping Zhang, Zhihao Lou, Ziyao Wei, Zhuozhao Wu, Jie Xu, Xuanjie Chen, Weihang Xu, Yiqi Wang, Feng Gao   +9 more
doaj   +1 more source