Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Finlay D"'
Autor:
Tian, Jiyu, Mishra, Karuna Kara, Zysman-Colman, Eli, Morrison, Finlay D., Katiyar, Ram S., Scott, James F.
We report inelastic light scattering from underdamped plasmons in azetidinium lead bromide (AzPbBr3). The plasmons are very strongly temperature dependent and serve as a soft mode for the semiconductor-insulator phase transition near TC {\guillemotri
Externí odkaz:
http://arxiv.org/abs/1904.07573
Autor:
Smith, Rebecca M., Gardner, Jonathan, Morrison, Finlay D., Rowley, Stephen E., Ferraz, Catarina, Carpenter, M. A., Chen, Jiasheng, Hodkinson, Jack, Dutton, Siân E., Scott, J. F.
Publikováno v:
Phys. Rev. Materials 2, 084409 (2018)
We have synthesised ceramic specimens of the tetragonal tungsten bronze K3Li2Ta5O15 (KLT) and characterized its phase transition via X-ray, dielectric permittivity, ultrasonic spectroscopy and heat capacity measurements. The space group of KLT is rep
Externí odkaz:
http://arxiv.org/abs/1802.09827
Autor:
Gradauskaite, Elzbieta, Gardner, Jonathan, Smith, Rebecca M., Morrison, Finlay D., Lee, Stephen L., Katiyar, Ram S., Scott, James F.
Publikováno v:
Phys. Rev. B 96, 104104 (2017)
There have been a large number of papers on bismuth ferrite (BiFeO3) over the past few years, trying to exploit its room-temperature magnetoelectric multiferroic properties. Although these are attractive, BiFeO3 is not the ideal multiferroic, due to
Externí odkaz:
http://arxiv.org/abs/1706.02194
Autor:
Scott, James F., Morrison, Finlay D., Clulow, Rebecca, Lightfoot, Philip, Gherson, Aurora, Capelli, Sylvia C., Probert, Michael R., Sahoo, S., Young, James S., Katiyar, Ram S.
Publikováno v:
Phys. Rev. B 95, 094119 (2017)
We report ferrielectricity in a single-phase crystal, TSCC -- tris-sarcosine calcium chloride [(CH3NHCH2COOH)3CaCl2]. Ferrielectricity is well known in smectic liquid crystals but almost unknown in true crystalline solids. Pulvari reported it in 1960
Externí odkaz:
http://arxiv.org/abs/1606.05789
Publikováno v:
Phys. Rev. B, 83, 184302, 2011
A new family of relaxor dielectrics with the tetragonal tungsten bronze structure (nominal composition Ba6M3+Nb9O30, M3+ = Ga, Sc or In) were studied using dielectric spectroscopy to probe the dynamic dipole response and correlate this with the cryst
Externí odkaz:
http://arxiv.org/abs/1104.1590
Autor:
Arnold, Donna C., Knight, Kevin S., Catalan, Gustau, Redfern, Simon A. T., Scott, James F., Lightfoot, Philip, Morrison, Finlay D.
Publikováno v:
Adv. Funct. Mater., 20, 2116-2123, 2010
High temperature powder neutron diffraction experiments have been conducted around the reported beta-gamma, insulator-metal phase transition (~ 930 C) in BiFeO3. The results demonstrate that while a small volume contraction is observed at the transit
Externí odkaz:
http://arxiv.org/abs/0908.3613
Publikováno v:
Phys. Rev. Lett., 102, 027602, 2009
A detailed investigation using variable temperature powder neutron diffraction demonstrates that BiFeO3 undergoes a phase transition from the ferroelectric alpha phase (rhombohedral, R3c) to a paraelectric beta phase (orthorhombic, Pbnm) between 820
Externí odkaz:
http://arxiv.org/abs/0811.1501
Publikováno v:
Physical Review B 75, 245111 (2007)
Temperature dependent impedance spectroscopy enables the many contributions to the dielectric and resistive properties of condensed matter to be deconvoluted and characterized separately. We have achieved this for multiferroic epitaxial thin films of
Externí odkaz:
http://arxiv.org/abs/0704.3262
A new family of relaxor dielectrics with the tetragonal tungsten bronze structure (nominal composition Ba6M3+Nb9O30, M3+ = Ga, Sc or In) were studied using dielectric spectroscopy to probe the dynamic dipole response and correlate this with the cryst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca2b345eea968c237422b30d2f8cf1e8
http://arxiv.org/abs/1104.1590
http://arxiv.org/abs/1104.1590
Autor:
J. M. Gregg, Finlay D. Morrison, Gustau Catalan, M. M. Saad, Miguel A. Correa-Duarte, S. Kawasaki, James F. Scott, T. Tatsuta, Hong Jin Fan, O. Tsuji, J. Rybczynski
The International Roadmap for Ferroelectric Memories requires three-dimensional integration of high-dielectric materials onto metal interconnects or bottom electrodes by 2010. We report the first integration of high-dielectric oxide films onto carbon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49b292771a7692814a5dcc562e1e7fc3
http://arxiv.org/abs/0706.2998
http://arxiv.org/abs/0706.2998