Tootfinder

The interplay of ferroelectricity and magneto-transport in non-magnetic moir\'{e} superlattices
Siqi Jiang, Renjun Du, Jiawei Jiang, Gan Liu, Jiabei Huang, Yu Du, Yaqing Han, Jingkuan Xiao, Di Zhang, Fuzhuo Lian, Wanting Xu, Siqin Wang, Lei Qiao, Kenji Watanabe, Takashi Taniguchi, Xiaoxiang Xi, Wei Ren, Baigeng Wang, Alexander S. Mayorov, Kai Chang, Hongxin Yang, Lei Wang, Geliang Yu

The interplay of ferroelectricity and magneto-transport in non-magnetic moiré superlattices
The coupling of ferroelectricity and magnetic order provides rich tunability for engineering material properties and demonstrates great potential for uncovering novel quantum phenomena and multifunctional devices. Here, we report interfacial ferroelectricity in moiré superlattices constructed from graphene and hexagonal boron nitride. We observe ferroelectric polarization in an across-layer moiré superlattice with an intercalated layer, demonstrating a remnant polarization comparable to its n…

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Wife says I have to stop huffing the pack of kerosene firelighters

Anisotropic nonlinear transport in two-dimensional ferroelectrics
Qin Zhang, Xu Chen, Mingbo Dou, M. Ye. Zhuravlev, A. V. Nikolaev, Xianjie Wang, L. L. Tao
https://arxiv.org/abs/2506.22739

Anisotropic nonlinear transport in two-dimensional ferroelectrics
The longitudinal nonlinear response plays a crucial role in the nonreciprocal charge transport and may provide a simple electrical means to probe the spin-orbit coupling, magnetic order and polarization states, etc. Here, we report on a study on the polarization and magnetic field control of longitudinal nonlinear transport in two-dimensional (2D) ferroelectrics with in-plane polarization. Based on the Boltzmann transport theory, we first study that using a general Hamiltonian model and show th…

Selenskyj: Gefangenenaustausch wird vorbereitet
Der ukrainische Präsident Selenskyj hat bestätigt, dass die Verhandlungsrunde in Istanbul beendet ist. Selenskyj sagte während eines Besuchs in der litauischen Hauptstadt Vilnius, eine neue Freilassung von Kriegsgefangenen werde vorbereitet.
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Ukraine und Russland: Verhandlungen beendet - neuer Gefangenenaustausch
Zum zweiten Mal haben sich Vertreter der Ukraine und Russlands in Istanbul getroffen. Nach dem Ende der Gespräche kündigte die Ukraine einen neuen Austausch von Gefangenen an.

Der Vorteil, für einen Konferenzbeitrag Material aus der eigenen Diss von vor mehr als 20 Jahren aufzuwärmen, ist, dass man sofort sieht, wo der jüngere Kollege in seinem Aufsatz von vor zwei Jahren danebengegriffen hat. Freilich muß ich seinen Aufsatz nicht in der Weise als "most helpful" dissen, wie er das mit meiner Diss getan hat. Vielmehr kann ich großmütigst die Schlussfolgerung, die er aus der ganzen Sache zieht, als interessante, jedoch im Endeffekt weniger gut abgestützte …

Robust Ferroelectricity in Silicon Dioxide upon Intercalation of Ammonia
Yaxin Gao, Menghao Wu, Jun-Ming Liu
https://arxiv.org/abs/2507.00804 https://

Robust Ferroelectricity in Silicon Dioxide upon Intercalation of Ammonia
The nanoelectronic applications of current ferroelectrics have been greatly impeded by their incompatibility with silicon. In this paper we propose a way to induce ferroelectricity in silicon dioxide (SiO2), which is still the most widely used dielectric material in silicon-based chips. We show first-principles evidence that the intercalation of NH3 molecules into crystalline SiO2 is exothermic, where NH3 molecules form quasi-bonds with SiO2, giving rise to large and robust polarizations. In ge…

Enhancing ferroelectric stability: Wide-range of adaptive control in epitaxial HfO2/ZrO2 superlattices
Jingxuan Li, Shiqing Deng, Liyang Ma, Yangyang Si, Chao Zhou, Kefan Wang, Sizhe Huang, Jiyuan Yang, Yunlong Tang, Yu-Chieh Ku, Chang-Yang Kuo, Yijie Li, Sujit Das, Shi Liu, Zuhuang Chen
https://arxiv.org/abs/2507.00393

Enhancing ferroelectric stability: Wide-range of adaptive control in epitaxial HfO2/ZrO2 superlattices
The metastability of the polar phase in HfO2, despite its excellent compatibility with the complementary metal-oxide-semiconductor process, remains a key obstacle for its industrial applications. Traditional stabilization approaches, such as doping, often induce crystal defects and impose constraints on the thickness of ferroelectric HfO2 thin films. These limitations render the ferroelectric properties vulnerable to degradation, particularly due to phase transitions under operational condition…

Photostriction-tunable Polarization and Structural Dynamics in Interlayer Sliding Ferroelectrics
Kun Yang, Jianxin Yu, Jia Zhang, Sheng Meng, Jin Zhang
https://arxiv.org/abs/2505.24186

Photostriction-tunable Polarization and Structural Dynamics in Interlayer Sliding Ferroelectrics
Two-dimensional ferroelectrics with robust polarization offer promising opportunities for non-volatile memory, field-effect transistors, and optoelectronic devices. However, the impact of lattice deformation on polarization and photoinduced structural response remains poorly understood. Here, we employ first-principles calculations to demonstrate photodoping-induced lattice expansion in rhombohedrally stacked bilayer MoS2, revealing a strong coupling between photodoping carrier and lattice stru…

Structural, dielectric, and ferroelectric characteristics of the low-temperature sintered 65PMN-35PT sample for electroceramic applications
B. Ramachandran, N. Sudarshan, G. Mangamma, M. S. Ramachandra Rao
https://arxiv.org/abs/2507.00614

Structural, dielectric, and ferroelectric characteristics of the low-temperature sintered 65PMN-35PT sample for electroceramic applications
A single-phase 65PMN-35PT ceramic was synthesized at a relatively low temperature (875 oC) using a modified columbite method. X-ray diffraction analysis confirmed the single-phase formation of perovskite 65PMN-35PT with a tetragonal structure. Morphological studies indicated that the sample consisted of small grains with a size of about 2 micro-m. The dielectric properties of the material demonstrate its relaxor behavior near the ferroelectric transition temperature, TC = 457 K. The saturation …