Results 31 to 40 of about 409,557 (326)

Correlations of structural, magnetic, and dielectric properties of undoped and doped CaCu3Ti4O12 [PDF]

, 2009
The present work reports synthesis, as well as a detailed and careful characterization of structural, magnetic, and dielectric properties of differently tempered undoped and doped CaCu3Ti4O12 (CCTO) ceramics.
A. Collomb, A. Douy, A. Hassini, A. Krimmel, A. Loidl, A.P. Ramirez, B. Bochu, C. Autret-Lambert, C. Kant, C. Lacroix, C.C. Homes, D.C. Sinclair, F. Bourée, F. Gervais, F. Porcher, G. Deng, H. Toraya, I.D. Brown, J. Chenavas, J. Hemberger, J. Hemberger, J. Li, J. Lu, J. Rodriguez-Carvajal, J.G. Bednorz, J.H. Barrett, J.L. Zhang, K.A. Müller, L. He, M. Gervais, M. Li, M. Li, M. Maglione, M.A. Subramanian, M.A. Subramanian, M.H. Cohen, M.N. Deschizeaux, N.A. Vasil’ev, P. Fiorenza, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, R. Weht, R.D. Shannon, R.K. Grubbs, S. Krohns, S. Krohns, S. Krohns, S.-Y. Chung, S.-Y. Chung, S.R. Elliott, T. Park, T.B. Adams, U. Schneider, V. Brize, V. Brize, V. Brizé, W. Kobayashi, W. Kobayashi, Y. Lin, Y. Zhu, Y.J. Kim   +61 more
core   +3 more sources

Thickness-dependent Dielectric Constant of Few-layer In2Se3 Nano-flakes

, 2015
The dielectric constant or relative permittivity of a dielectric material, which describes how the net electric field in the medium is reduced with respect to the external field, is a parameter of critical importance for charging and screening in ...
Han, Yu, Hwang, Gyeong S., Lai, Keji, Lin, Min, Liu, Yingnan, Pak, Alexander J., Peng, Hailin, Ren, Yuan, Tsai, Yu-Hao, Wu, Di, Wu, Xiaoyu, Zhou, Yu, Zhu, Yihan   +12 more
core   +1 more source

Electronic, dielectric and optical properties of two dimensional and bulk ice: a multi-scale simulation study

, 2020
The intercalated water into nanopores exhibits anomalous properties such as ultralow dielectric constant.~Multi-scale modeling and simulations are used to investigate the dielectric properties of various crystalline two-dimensional ices and bulk ices ...
Alihosseini, M., Ghasemi, S., Jalali, H., Ketabi, S. A., Khoeini, F., Neek-Amal, M., Peymanirad, F.   +6 more
core   +1 more source

Magnetoelectric coupling in MnTiO3 [PDF]

, 2011
We give general arguments that show that the linear magnetoelectric effect in antiferromagnetic materials gives rise to a magnetocapacitance anomaly—a divergence of the dielectric constant at the magnetic ordering temperature TN that appears in an ...
Blake, G.R.,, Mostovoy, M.,, Mufti, N.,, Nugroho, A.A.,, Palstra, T.T.M.,, Riyadi, S.,   +5 more
core   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Effects of Lattice Types on the Frequency Band Widths in Photonic Crystals

مجلة علوم ذي قار, 2022
The plane wave expansion method was implemented in modeling and simulating the band structures of two dimensional photonic crystals (PhCs) with square, triangular and honeycomb lattices with circular air holes in dielectric or circular GaAs rods in air.
Ahmed M. Kadhim , Hassan A. Yasser
doaj   +1 more source

The dielectric constant of UO2 below the Néel point [PDF]

, 1987
We report measurements of the frequency-dependent dielectric constant of UO2 from 4.2 K to above the phase transition at 30 K. The static dielectric constant of 23.6 at 4.2 K is comparable with accepted values at higher temperatures: it is essentially ...
Hampton, N, Harding, JH, Saunders, GA, Stoneham, AM   +3 more
core  

Dielectric spectroscopy of water at low frequencies: The existence of an isopermitive point

, 2010
We have studied the real part of the dielectric constant of water from 100 Hz to 1 MHz. We have found that there is a frequency where the dielectric constant is independent of temperature, and called this the isopermitive point.
A. Angulo-Sherman, Bagchi, Bisquert, Blythe, Brynestad, Cabane, Chaplin, D’Arrigo, Ellison, Ershov, Frauenfelder, Gómez-Galván, H. Mercado-Uribe, Jansson, Kupfer, Lewowski, Lide, Oleinikova, Pethig, Phillips, Robinson, Shiue, Trout, Walrafen, Yagasaki   +24 more
core   +1 more source

Observation of Jonscher Law in AC Hopping Conduction of Electron-Doped Nanoporous Crystal 12CaO7Al2O3 in THz Frequency Range [PDF]

, 2004
We have performed terahertz time-domain spectroscopy of carrier-doped nanoporous crystal 12CaO7Al2O3 showing the Mott variable range hopping at room temperature.
H. Bartl, H. Harimochi, H. Hosono, J. Kitagawa, M. Ishizaka, M. Yamanishi, S. Kojima, S. Matsuishi, Y. Kadoya   +8 more
core   +2 more sources

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source