Zobrazeno 1 - 10
of 184
pro vyhledávání: '"X Moya"'
Autor:
X Moya, N D Mathur
Publikováno v:
JPhys Energy, Vol 6, Iss 4, p 040201 (2024)
Externí odkaz:
https://doaj.org/article/82e9f22d61094c7d8c470e353589f556
Publikováno v:
JPhys Energy, Vol 6, Iss 3, p 035003 (2024)
We present a minimal Landau theory of plastic-to-crystal phase transitions in which the key components are a multipole-moment order parameter that describes the orientational ordering of the constituent molecules, coupling between such order paramete
Externí odkaz:
https://doaj.org/article/1ed227ef25614ef694c660596f350e06
Autor:
D. Pesquera, E. Khestanova, M. Ghidini, S. Zhang, A. P. Rooney, F. Maccherozzi, P. Riego, S. Farokhipoor, J. Kim, X. Moya, M. E. Vickers, N. A. Stelmashenko, S. J. Haigh, S. S. Dhesi, N. D. Mathur
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Key properties of transition metal perovskite oxides are degraded after epitaxial growth on ferroelectric substrates due to lattice-mismatch strain. Here, the authors use epitaxial lift-off and transfer to overcome this problem and demonstrate electr
Externí odkaz:
https://doaj.org/article/d326a7d2ba8446c8978bd0470b986589
Autor:
P. Lloveras, A. Aznar, M. Barrio, Ph. Negrier, C. Popescu, A. Planes, L. Mañosa, E. Stern-Taulats, A. Avramenko, N. D. Mathur, X. Moya, J.-Ll. Tamarit
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
There is great interest, in refrigeration technology, in replacing harmful volatile hydrofluorocarbons with solid materials. Here the authors show that commercially available plastic crystal neopentylglycol displays colossal and reversible barocalori
Externí odkaz:
https://doaj.org/article/bb8260922af6428aa929e7305d438d53
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Electrocaloric materials can be electrically driven to pump heat and hold promise for use in efficient solid-state refrigeration. Here, the authors demonstrate an approach to recycle recoverable energy from electrocaloric cycles, offering a method to
Externí odkaz:
https://doaj.org/article/a4298a8919e34b82829e50a33ea52737
Publikováno v:
APL Materials, Vol 7, Iss 5, Pp 051109-051109-6 (2019)
The elastic response of BaTiO3 single crystals during electric field cycling at room temperature has been studied using in situ Resonant Ultrasound Spectroscopy (RUS), which allows monitoring of both the elastic and anelastic changes caused by ferroe
Externí odkaz:
https://doaj.org/article/0af03e3006a14682bccf621057e51be9
Akademický článek
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Publikováno v:
Physical Review X, Vol 9, Iss 4, p 041002 (2019)
There is growing interest in heat pumps based on materials that show thermal changes when phase transitions are driven by changes of electric, magnetic, or stress field. Importantly, regeneration permits sinks and loads to be thermally separated by m
Externí odkaz:
https://doaj.org/article/c463a31b7df64481a7efdf0b91f91a59
Akademický článek
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Autor:
E. Stern-Taulats, P. Lloveras, M. Barrio, E. Defay, M. Egilmez, A. Planes, J.-LI. Tamarit, Ll. Mañosa, N. D. Mathur, X. Moya
Publikováno v:
APL Materials, Vol 4, Iss 9, Pp 091102-091102-7 (2016)
We use calorimetry to identify pressure-driven isothermal entropy changes in ceramic samples of the prototypical ferroelectric BaTiO3. Near the structural phase transitions at ∼400 K (cubic-tetragonal) and ∼280 K (tetragonal-orthorhombic), the in
Externí odkaz:
https://doaj.org/article/ae71cab0637b423f9bc7e3d017c82562