Results 81 to 90 of about 40,538 (255)

Modulation Doping of a Mott Quantum Well by a Proximate Polar Discontinuity

, 2008
We present evidence for hole injection into LaAlO3/LaVO3/LaAlO3 quantum wells near a polar surface of LaAlO3 (001). As the surface is brought in proximity to the LaVO3 layer, an exponential drop in resistance and a decreasing positive Seebeck coefficient
Fujimori, A., Higuchi, T., Hotta, Y., Hwang, H. Y., Susaki, T.   +4 more
core   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

Electron Channeling Contrast Imaging of Ferroelastic Domains

Advanced Materials, EarlyView.
A simple scanning electron microscopy technique, electron channeling contrast imaging, unveils nanoscale ferroelastic domains and their coupling to functional properties in oxide heterostructures. The work demonstrates high‐resolution mapping of both surface and buried domains, broadening the experimental toolbox for ferroic and quantum oxide systems ...
Wei Peng, Aditya Singh, M. Haroon Qaiser, Philipp Fahler‐Muenzer, Freya Watson, Liang Si, Yining Xie, Katarzyna E. Sopińska, Daniel A. Chaney, Ana M. Sanchez, T. Ben Britton, Richard Beanland, Marios Hadjimichael, Marin Alexe   +13 more
wiley   +1 more source

Spectral functions in doped transition metal oxides

, 1996
We present experimental photoemission and inverse photoemission spectra of SrTiO$_{3- \delta}$ representing electron doped $d^0$ systems. Photoemission spectra in presence of electron doping exhibit prominent features arising from electron correlation ...
Barman, S. R., Kajueter, H., Kotliar, G., Sarma, D. D.   +3 more
core   +1 more source

From Thin Films to Nanodots: Bottom‐Up Integration of Fe3O4 on Nb:STO for Functional Oxide Nanostructures

Advanced Materials, EarlyView.
Scalable bottom‐up fabrication of Fe3O4 nanodots on Nb:SrTiO3 using anodic alumina templates enables long‐range ordered arrays with diameters down to 30 nm. STEM highlights the epitaxial growth of Fe3O4 films on Nb:SrTiO3. Complementary polarized neutron reflectometry (PNR) and X‐ray magnetic circular dichroism (XMCD) measurements on continuous films ...
Yifan Xu, Connie Bednarski‐Meinke, Yen‐Po Liu, Erkai Wang, Asma Qdemat, Peijia Yuan, Lilian Maria Vogl, Patrick Schöffmann, Thomas Saerbeck, Chenyang Yin, Gerhard Dehm, Felix Gunkel, Regina Dittmann, Oleg Petracic, Mai Hussein Hamed   +14 more
wiley   +1 more source

Atomic resolution microstructure study of Bi-doped SrTiO3

Journal of Advanced Dielectrics
Intrinsic SrTiO3 is a quantum paraelectric, but moderately Bi-doped SrTiO3 exhibits dielectric frequency dispersion similar to relaxor ferroelectrics. In this paper, detailed electron microscopic studies of the microstructures of Bi-doped SrTiO3 samples ...
Chao Li, Yijun Zhang, Guohua Dong, Guangliang Hu, Guang Yang, Chaoqiang Liu, Houwen Chen, Xiaoyong Wei   +7 more
doaj   +1 more source

Room-Temperature Plastic Deformation of Strontium Titanate Crystals Grown from Different Chemical Compositions

Crystals, 2017
Oxide materials have the potential to exhibit superior mechanical properties in terms of high yield point, high melting point, and high chemical stability.
Atsutomo Nakamura, Kensuke Yasufuku, Yuho Furushima, Kazuaki Toyoura, K. Peter D. Lagerlöf, Katsuyuki Matsunaga   +5 more
doaj   +1 more source

Strong Influence of the diffuse component on the lattice dynamics in Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_{3}$

, 2004
The temperature and zone dependence of the lattice dynamics in Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_{3}$ is characterized using neutron inelastic scattering. A strong correlation between the diffuse and phonon scattering is measured.
Axe J. D., Bovtun V., Bullock M., Burns G., Currat R., de Mathan N., Fak B., Gehring P., Gehring P. M., Gvasaliya S. N., Gvasaliya S. N., Harada J., Harbeke G., Harris M. J., Hirota K., Hlinka J., Luo H., Lynden-Bell R. M., Michel K. H., Naberezhnov A., Shapiro S. M., Shirane G., Shirane G., Stassis C., Stock C., Vakhrushev S. B., Vakhrushev S. B., Wakimoto S., Wakimoto S., Wehner R. K., Westphal V., Xu G., Yamada Y., Yamada Y., Ye Z.-G.   +34 more
core   +1 more source

Facet‐Selective Electrostatic Assembling of 2D Mxene onto Anisotropic Single‐Crystal Metal Oxides for Enhanced Photocatalysis

Advanced Materials, EarlyView.
Overcoming random aggregation, Facet‐Selective Electrostatic Assembly (FSEA) achieves site‐specific integration of 2D MXenes onto 3D TiO2 supports. This electrostatic assembling creates optimized interface energy junctions that facilitate spatial charge transfer.
Shun Kashiwaya, Stephen Nagaraju Myakala, Sho Nekita, Yuta Tsuji, Yuran Niu, Xianjie Liu, Leiqiang Qin, Manisha Sharma, Alexei Zakharov, Lars Hultman, Dominik Eder, Hikaru Saito, Alexey Cherevan, Johanna Rosen   +13 more
wiley   +1 more source

First-Principles Analysis of Cr-Doped SrTiO3 Perovskite as Optoelectronic Materials [PDF]

Iranian Journal of Materials Science and Engineering, 2023
This contribution evaluates the influence of Cr doping on the ground state properties of SrTiO3 Perovskite using GGA-PBE approximation. Results of the simulated model infer agreement with the previously published literature.
Hussein Ali Jan Miran, Zainab Naji Abdullah, Mohammednoor Altarawneh, M Mahbubur Rahman, Auday Tariq Al-Bayati, Ebtisam M-T. Salman   +5 more
doaj