Zobrazeno 1 - 10
of 406
pro vyhledávání: '"Scott, James. F."'
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:
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:
Agarwal, Radhe, Sharma, Yogesh, Chang, Siliang, Pitike, Krishna, Sohn, Changhee, Nakhmanson, Serge M., Takoudis, Christos G., Lee, Ho Nyung, Scott, James F., Katiyar, Ram S., Hong, Seungbum
Publikováno v:
Phys. Rev. B 97, 054109 (2018)
We have studied ferroelectricity and photovoltaic effects in atomic layer deposited (ALD) 40-nm thick SnTiO$_{x}$ films deposited directly onto p-type (001)Si substrate. These films showed well-saturated, square and repeatable hysteresis loops with r
Externí odkaz:
http://arxiv.org/abs/1702.04791
Electric-polarization reversibility in nano-ferroelectric structures renders them as a convenient platform for exploring phase transitions and developing energy-efficient switching devices. However, the fundamental question of how ferroic domains swi
Externí odkaz:
http://arxiv.org/abs/1608.03890
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
We show that switching in ferroelectric lead germanate and lead iron tantalate zirconate titanate (PZTFT) does not resemble the equilibrium domain structure evolution of the Landau-Lifshitz-Kittel model but is instead highly nonequilibrium and simila
Externí odkaz:
http://arxiv.org/abs/1606.03586
Autor:
Song, Seungwoo, Jang, Hyun Myung, Lee, Nam-Suk, Son, Jong Y., Gupta, Rajeev, Garg, Ashish, Ratanapreechachai, Jirawit, Scott, James F.
Orthorhombic GaFeO3 (o-GFO) with the polar Pna21 space group is a prominent ferrite by virtue of its piezoelectricity and ferrimagnetism, coupled with magneto-electric effects. Herein, we unequivocally demonstrate a large ferroelectric remanent polar
Externí odkaz:
http://arxiv.org/abs/1510.05359
Autor:
Shen, Shi-Peng, Wu, Jia-Chuan, Song, Jun-Da, Sun, Xue-Feng, Yang, Yi-Feng, Chai, Yi-Sheng, Shang, Da-Shan, Wang, Shou-Guo, Scott, James F., Sun, Young
Publikováno v:
Nature Communications 7, 10569 (2016)
Geometric frustrations and quantum mechanical fluctuations may prohibit the formation of long-range ordering even at the lowest temperature, and therefore liquid-like ground states could be expected. A good example is the quantum spin liquid in frust
Externí odkaz:
http://arxiv.org/abs/1507.01405
Autor:
Ng, Nathaniel, Ahluwalia, Rajeev, Kumar, Ashok, Srolovitz, David J., Chandra, Premala, Scott, James F.
Using a combination of computational simulations, atomic-scale resolution imaging and phenomenological modelling, we examine the underlying mechanism for nanodomain restructuring in lead zirconate titanate (PZT) nanodisks driven by electron beams. Th
Externí odkaz:
http://arxiv.org/abs/1505.02327