Results 11 to 20 of about 123,359 (254)
A dual-tunable ultra-broadband terahertz absorber based on graphene and strontium titanate
Results in Physics, 2021 An electrically and thermally dual-tunable broadband terahertz absorber based on graphene and strontium titanate is designed and analyzed. The results show that by lifting the Fermi energy of graphene, absorption is significantly enhanced, particularly ...
Jiali Wu +4 more
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Phonon Thermal Hall Effect in Strontium Titanate [PDF]
Physical Review Letters, 2020 It has been known for more than a decade that phonons can produce an off-diagonal thermal conductivity in presence of magnetic field. Recent studies of thermal Hall conductivity, $ _{xy}$, in a variety of contexts, however, have assumed a negligibly small phonon contribution.
Li, Xiaokang +3 more
openaire +6 more sources
Phonon drag thermal Hall effect in metallic strontium titanate. [PDF]
Proc Natl Acad Sci U S A, 2022 Significance We find that the amplitude of the thermal Hall effect (THE) in strontium titanate drastically varies with atomic substitution. It is suppressed when Sr is substituted by Ca, pointing to the role of ferroelectric fluctuations in generating ...
Jiang S, Li X, Fauqué B, Behnia K.
europepmc +3 more sources
Heavy Nondegenerate Electrons in Doped Strontium Titanate [PDF]
Physical Review X, 2020 Room-temperature metallicity of lightly doped SrTiO_{3} is puzzling, because the combination of mobility and the effective mass would imply a mean-free path below the Mott-Ioffe-Regel limit and a scattering time shorter than the Planckian time (τ_{P}=ℏ ...
Clément Collignon +3 more
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Photoinduced electronic and ionic effects in strontium titanate.
Mater Adv, 2021 The interaction of light with solids has been of ever-growing interest for centuries, even more so since the quest for sustainable utilization and storage of solar energy became a major task for industry and research.
Siebenhofer M +4 more
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Quantum paraelectricity and structural phase transitions in strontium titanate beyond density functional theory [PDF]
PHYSICAL REVIEW MATERIALS, 2022 We demonstrate an approach for calculating temperature-dependent quantum and anharmonic effects with beyond density-functional theory accuracy. By combining machine-learned potentials and the stochastic self-consistent harmonic approximation, we ...
C. Verdi +3 more
semanticscholar +1 more source
Isotope tuning of the superconducting dome of strontium titanate [PDF]
Physical Review Research, 2021 Doped strontium titanate SrTiO3 (STO) is one of the most dilute superconductors known today. The fact that superconductivity occurs at very low carrier concentrations is one of the two reasons that the pairing mechanism is not yet understood, the other ...
C. Rischau +5 more
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Mesoscopic fluctuating domains in strontium titanate [PDF]
Physical review B, 2022 Spatial correlation between atoms can generate a depletion in the energy dispersion of acoustic phonons. Two well known examples are rotons in superfluid helium and the Kohn anomaly in metals.
Benoit Fauqu'e +8 more
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Optical and quantum electronics, 2023 In this study, we prepared a homogeneous fine powder of barium titanate (BaTiO_3, BT) doped with different concentrations of strontium (x = 0, 0.05, 0.125, 0.15, 0.20, and 0.3) and having the composition Ba_1-xSr_xTiO_3 (barium strontium titanate, BSr_xT)
M. Tihtih +8 more
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Journal of Biomedical Materials Research. Part A, 2021 To mimic the electrical properties of natural bone, controlled strontium substitution of both hydroxyapatite and ferroelectric barium titanate were achieved by mixing in the ratio 30:70 by weight.
S. Swain, C. Bowen, T. Rautray
semanticscholar +1 more source