Zobrazeno 1 - 10
of 47 821
pro vyhledávání: '"paraelectric"'
Autor:
Jacobsen, Henrik, Barthkowiak, Marek, Weber, Tobias, Stuhr, Uwe, Roessli, Bertrand, Niedermayer, Christof, Staub, Urs
Here we report on an elastic and inelastic neutron scattering study addressing the effect of electric fields on quantum paraelectric SrTiO3. Our elastic scattering results find small changes as a function of field in a superlattice reflection that sa
Externí odkaz:
http://arxiv.org/abs/2404.16334
Autor:
Sha, Haozhi, Zhang, Yixuan, Ma, Yunpeng, Li, Wei, Yang, Wenfeng, Cui, Jizhe, Li, Qian, Huang, Houbing, Yu, Rong
Polar topologies, such as vortex and skyrmion, have attracted significant interest due to their unique physical properties and promising applications in high-density memory devices. Currently, most polar vortices are observed in heterostructures cont
Externí odkaz:
http://arxiv.org/abs/2404.08145
Autor:
Kim, Kyoung-Min, Chung, Suk Bum
The concept of ferroelectricity is now often extended to include continuous inversion symmetry-breaking transitions in various metals and doped semiconductors. Paraelectric metals near ferroelectric quantum criticality, which we term `quantum paraele
Externí odkaz:
http://arxiv.org/abs/2401.11164
Autor:
Bernhardt, Felix, Verhoff, Leonard M., Schäfer, Nils A., Kapp, Alexander, Fink, Christa, Nachwati, Wafaa Al, Bashir, Umar, Klimm, Detlef, Azzouzi, Fatima El, Yakhnevych, Uliana, Suhak, Yuriy, Schmidt, Harald, Becker, Klaus-Dieter, Ganschow, Steffen, Fritze, Holger, Sanna, Simone
The ferroelectric to paraelectric phase transition in LiTaO$_3$ and in pure as well as Mg doped LiNbO$_3$ is investigated theoretically by atomistic calculations in the framework of the density functional theory, as well as experimentally by calorime
Externí odkaz:
http://arxiv.org/abs/2403.17620
The recent discovery of ferroelectric behavior in few-layer materials, accompanied by the observation of antipolar domains in hexagonal boron nitride and transition metal dichalcogenide moir\'e bilayers, is paving the way for revolutionary advancemen
Externí odkaz:
http://arxiv.org/abs/2403.12175
Autor:
Lavrentovich, Oleg D.
Publikováno v:
Liquid Crystals Reviews 12 (2024) 1-13
Elastic constants of splay K_11, twist K_22, and bend K_33 of nematic liquid crystals are often assumed to be equal to each other in order to simplify the theoretical description of complex director fields. Here we present examples of how the dispari
Externí odkaz:
http://arxiv.org/abs/2403.10972
Autor:
Schaack, Sofiane, Mangaud, Etienne, Fallacara, Erika, Huppert, Simon, Depondt, Philippe, Finocchi, Fabio
Publikováno v:
Physical Review Letters, 2023, 131 (12), pp.126101
Anhydrous sodium hydroxide, a common and structurally simple compound, shows spectacular isotope effects: NaOD undergoes a first-order transition, which is absent in NaOH. By combining ab initio electronic structure calculations with path integrals,
Externí odkaz:
http://arxiv.org/abs/2310.16462
Autor:
Kumar, Keshav, Pandey, Dhananjai
Evidence for a re-entrant quantum paraelectric (QPE) state preceded by a dipole glass (DG) phase with a non-classical exponent in the quantum critical regime of SrFe12O19 is presented. It is shown that the DG transition is accompanied with a spin gla
Externí odkaz:
http://arxiv.org/abs/2312.10619
Autor:
Anil Kumar, G. N.1 (AUTHOR), Hathwar, Venkatesha R.2 (AUTHOR) vhathwar@unigoa.ac.in
Publikováno v:
Acta Crystallographica Section B: Structural Science, Crystal Engineering & Materials. Dec2023, Vol. 79 Issue 6, p450-461. 12p.
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