Search Results - "WITHERS, Ray L"

Colossal Dielectric Permittivity in (Nb+Al) Codoped Rutile TiO2 Ceramics: Compositional Gradient and Local Structure by Hu, Wanbiao, Lau, Kenny, Liu, Yun, Withers, Ray L, Chen, Hua, Fu, Lan, Gong, Bill, Hutchison, Wayne

“…(Nb+Al) codoped rutile TiO2 ceramics with nominal composition Ti4+ 0.995Nb5+ 0.005y­Al3+ 0.005zO2, z = (4–5y)/3 and y = 0.4, 0.5, 0.6, 0.7, and Ti4+ 0.90Nb5+…”
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Atomic-scale control of TiO6 octahedra through solution chemistry towards giant dielectric response by Hu, Wanbiao, Li, Liping, Li, Guangshe, Liu, Yun, Withers, Ray L.

“…The structures of many important functional oxides contain networks of metal-oxygen polyhedral units i.e. M O n . The correlation between the configurations…”
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Direct mapping of Li-enabled octahedral tilt ordering and associated strain in nanostructured perovskites by Zhu, Ye, Withers, Ray L., Bourgeois, Laure, Dwyer, Christian, Etheridge, Joanne

“…Self-assembled nanostructures with periodic phase separation hold great promise for creating two- and three-dimensional superlattices with extraordinary…”
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Ca-Doping of BiFeO3: The Role of Strain in Determining Coupling between Ferroelectric Displacements, Magnetic Moments, Octahedral Tilting, and Oxygen-Vacancy Ordering by Schiemer, Jason A, Withers, Ray L, Liu, Yun, Carpenter, Michael A

“…Elastic and anelastic properties of a member of the BiFeO3–CaFeO2.5 perovskite solid solution (BCFO), which is known to have multiple instabilities, have been…”
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Electron-pinned defect-dipoles for high-performance colossal permittivity materials by Hu, Wanbiao, Liu, Yun, Withers, Ray L., Frankcombe, Terry J., Norén, Lasse, Snashall, Amanda, Kitchin, Melanie, Smith, Paul, Gong, Bill, Chen, Hua, Schiemer, Jason, Brink, Frank, Wong-Leung, Jennifer

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Susceptible Ferroelectric/Antiferroelectric Phase Transition near the Surface of Nb-Doped Lead Zirconate Stannate Titanate from Surface Processing by Lu, Teng, Studer, Andrew J, Cortie, David, Lau, Kenny, Yu, Dehong, Feng, Yujun, Chen, Hua, Xu, Zhuo, Withers, Ray L, McIntyre, Garry J, Liu, Yun

“…This work systematically investigated the structure and property of the near-surface and bulk regions of Pb0.99(Nb0.02Zr0.73Sn0.21Ti0.04)­O3 ceramics using a…”
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Electron-pinned defect-dipoles for high-performance colossal permittivity materials by Hu, Wanbiao, Liu, Yun, Withers, Ray L., Frankcombe, Terry J., Norén, Lasse, Snashall, Amanda, Kitchin, Melanie, Smith, Paul, Gong, Bill, Chen, Hua, Schiemer, Jason, Brink, Frank, Wong-Leung, Jennifer

“…The immense potential of colossal permittivity (CP) materials for use in modern microelectronics as well as for high-energy-density storage applications has…”
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Colossal Dielectric Behavior of Ga+Nb Co-Doped Rutile TiO2 by Dong, Wen, Hu, Wanbiao, Berlie, Adam, Lau, Kenny, Chen, Hua, Withers, Ray L, Liu, Yun

“…Stimulated by the excellent colossal permittivity (CP) behavior achieved in In+Nb co-doped rutile TiO2, in this work we investigate the CP behavior of Ga and…”
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An orthophosphate semiconductor with photooxidation properties under visible-light irradiation by Ye, Jinhua, Yi, Zhiguo, Kikugawa, Naoki, Kako, Tetsuya, Ouyang, Shuxin, Stuart-Williams, Hilary, Yang, Hui, Cao, Junyu, Luo, Wenjun, Li, Zhaosheng, Liu, Yun, Withers, Ray L

“…The search for active semiconductor photocatalysts that directly split water under visible-light irradiation remains one of the most challenging tasks for…”
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Anomalous Photovoltaic Effect in Centrosymmetric Ferroelastic BiVO4 by Liu, Xitao, Zhang, Faqiang, Long, Peiqing, Lu, Teng, Zeng, Huarong, Liu, Yun, Withers, Ray L., Li, Yongxiang, Yi, Zhiguo

“…The anomolous photovoltaic (APV) effect is an intriguing phenomenon and rarely observed in bulk materials that structurally have an inversion symmetry. Here,…”
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Crystal chemistry on a lattice: The case of BZN and BZN-related pyrochlores by Liu, Yun, Withers, Ray L., Welberry, T.R., Wang, Hong, Du, Huiling

“…This paper uses a diagnostic, highly structured diffuse intensity distribution to investigate the local crystal chemistry of (Bi 1.5Zn 0.5− δ )(Zn 0.5Nb 1.5)O…”
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Structure-Driven, Ferroelectric Wake-Up Effect for Electrical Fatigue Relief by Lu, Teng, Tian, Ye, Studer, Andrew, Li, Qian, Withers, Ray L, Jin, Li, Yu, Dehong, Xu, Zhuo, Wei, Xiaoyong, Liu, Yun

“…In this work, we report the first observation of a structure-driven ferroelectric (FE) wake-up effect in polycrystalline AgNbO3-based antiferroelectric (AFE)…”
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Design Synthesis of Nitrogen-Doped TiO2@Carbon Nanosheets toward Selective Nitroaromatics Reduction under Mild Conditions by Pan, Xiaoyang, Gao, Xiang, Chen, Xuxing, Lee, Ho Nyung, Liu, Yun, Withers, Ray L, Yi, Zhiguo

“…The development of a facile, low-cost, and eco-friendly approach to the synthesis of aromatic amines remains a great scientific challenge. TiO2, as a low-cost…”
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Above-Band Gap Photoinduced Stabilization of Engineered Ferroelectric Domains by Mai, Haoxin, Lu, Teng, Li, Qian, Liu, Zhifu, Li, Yongxiang, Kremer, Felipe, Li, Li, Withers, Ray L, Wen, Haidan, Liu, Yun

“…The effect of above-band gap photons on the domains of the BiFeO3 (BFO) thin film was investigated via piezoresponse force microscopy and Kelvin probe force…”
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Synthesis and structural studies of lanthanide substituted bismuth–titanium pyrochlores by Ting, Jimmy, Kennedy, Brendan J., Withers, Ray L., Avdeev, Maxim

“…The identity of the pyrochlore phase seen during the synthesis of ferroelectric Bi 4− xLn x Ti 3O 12 Aurivillius oxides is shown to be Bi 2/3 Ln 4/3Ti 2O 7…”
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Giant Magnetodielectric Effect in 0−3 Ni0.5Zn0.5Fe2O4-Poly(vinylidene-fluoride) Nanocomposite Films by Guo, Yiping, Liu, Yun, Wang, Jianli, Withers, Ray L, Chen, Hua, Jin, Lu, Smith, Paul

“…Multiferroic nanocomposite films, composed of well-dispersed, magnetic Ni0.5Zn0.5Fe2O4 (NZFO) nanoparticles (in the size range 10−20 nm) embedded into a…”
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The Formation of Defect‐Pairs for Highly Efficient Visible‐Light Catalysts by Sun, Qingbo, Cortie, David, Zhang, Shaoyang, Frankcombe, Terry J., She, Guangwei, Gao, Jie, Sheppard, Leigh R., Hu, Wanbiao, Chen, Hua, Zhuo, Shangjun, Chen, Dehong, Withers, Ray L., McIntyre, Garry, Yu, Dehong, Shi, Wensheng, Liu, Yun

“…Highly efficient visible‐light catalysts are achieved through forming defect‐pairs in TiO2 nanocrystals. This study therefore proposes that fine‐tuning the…”
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Thermal expansion and cation disorder in Bi2InNbO7 by QINGDI ZHOU, KENNEDY, Brendan J, TING, Valeska, WITHERS, Ray L

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Displacive disorder and dielectric relaxation in the stoichiometric bismuth-containing pyrochlores, Bi2MIIINbO7 (M = In and Sc) by YUN LIU, WITHERS, Ray L, BINH NGUYEN, Hai, ELLIOTT, Kim, QIJUN REN, ZHANGHAI CHEN

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Electric-field-induced AFE-FE transitions and associated strain/preferred orientation in antiferroelectric PLZST by Lu, Teng, Studer, Andrew J., Noren, Lasse, Hu, Wanbiao, Yu, Dehong, McBride, Bethany, Feng, Yujun, Withers, Ray L., Chen, Hua, Xu, Zhuo, Liu, Yun

“…Electric-field-induced, antiferroelectric-ferroelectric (AFE-FE) phase transitions are common for AFE materials. To date, the strain and preferred orientation…”
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