Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Scott, J. F."'
Publikováno v:
Reports on Progress in Physics 82 092501 (2019)
We review all the published literature and show that there is no experimental evidence for homogeneous tin titanate SnTiO3 in bulk or thin-film form. Instead a combination of unrelated artefacts are easily misinterpreted. The X-ray Bragg data are con
Externí odkaz:
http://arxiv.org/abs/1906.03229
Previous studies of Barkhausen noise in PZT have been limited to the energy spectrum (slew rate response voltages versus time), showing agreement with avalanche models; in barium titanate other exponents have been measured acoustically, but only at a
Externí odkaz:
http://arxiv.org/abs/1906.00087
Publikováno v:
Physical Review MATERIALS 3, 034402 (2019)
Systems that produce crackling noises such as Barkhausen pulses are statistically similar and can be compared with one another. In this project, the Barkhausen noise of three ferroelectric lead zirconate titanate (PZT) samples were demonstrated to be
Externí odkaz:
http://arxiv.org/abs/1805.08536
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:
Chowdhury, Ujjal, Goswami, Sudipta, Roy, Amritendu, Rajput, S. S., Mall, A. K., Gupta, R., Kaushik, S. D., Siruguri, V., Saravanakumar, S., Israel, S., Saravanan, R., Senyshyn, A., Chatterji, T., Scott, J. F., Garg, A., Bhattacharya, Dipten
Publikováno v:
Phys. Rev. B 100, 195116 (2019)
We demonstrate that small but finite ferroelectric polarization ($\sim$0.01 $\mu$C/cm$^2$) emerges in orthorhombic LuFeO$_3$ ($Pnma$) at $T_N$ ($\sim$600 K) because of commensurate (k = 0) and collinear magnetic structure. The synchrotron x-ray and n
Externí odkaz:
http://arxiv.org/abs/1710.02381
Autor:
Rowley, S. E., Vojta, T., Jones, A. T., Guo, W., Oliveira, J., Morrison, F. D., Lindfield, N., Saitovitch, E. Baggio, Watts, B. E., Scott, J. F.
Publikováno v:
Phys. Rev. B 96, 020407(R) (2017)
Hexagonal ferrites do not only have enormous commercial impact ({\pounds}2 billion/year in sales) due to applications that include ultra-high density memories, credit card stripes, magnetic bar codes, small motors and low-loss microwave devices, they
Externí odkaz:
http://arxiv.org/abs/1708.03945
The out-of-plane and in-plane polarization of (Pb0.6Li0.2Bi0.2)(Zr0.2Ti0.8)O3(PLBZT) thin film has studied in the dark and under illumination of a weak light source of a comparable bandgap. A highly oriented PLBZT thin film was grown on LaNiO3 (LNO)/
Externí odkaz:
http://arxiv.org/abs/1706.09581
We report optical enhancement in polarization and dielectric constant near room temperature in Pb0.6Li0.2Bi0.2Zr0.2Ti0.8O3 (PLBZT) electro-ceramics; these are doubly substituted members of the most important commercial ferroelectric PbZr0.2Ti0.8O3 (P
Externí odkaz:
http://arxiv.org/abs/1706.08038
Publikováno v:
Reports on Progress in Physics, 80, 112502 (2017)
The emergence of complex and fascinating states of quantum matter in the neighborhood of zero temperature phase transitions suggests that such quantum phenomena should be studied in a variety of settings. Advanced technologies of the future may be fa
Externí odkaz:
http://arxiv.org/abs/1704.07270
Autor:
Kumari, Shalini, Pradhan, Dhiren K., Ortega, Nora, Pradhan, Kallol, DeVreugd, Christopher, Srinivasan, Gopalan, Kumar, Ashok, Scott, J. F., Katiyar, Ram S.
During the last fifteen years, multiferroic (MF) research communities have been searching for an alternative room temperature MF material with large magnetoelectric (ME) coupling for possible applications in high density electronic components, low he
Externí odkaz:
http://arxiv.org/abs/1603.07643