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Magnetic spin topological textures recently found their electrical counterparts in polar topologies emerging from the condensation of inhomogeneous polar atomic distortions. Here, we further extend the concept to other non-polar atomic…

Materials Science · Physics 2025-10-10 Fernando Gómez-Ortiz , Louis Bastogne , Philippe Ghosez

The complex perovskite Ba2CoTeO6 (BCTO) has been synthesised, and the crystal structure and magnetic properties have been investigated using a combination of X-ray and neutron powder diffraction, electron microscopy and dielectric,…

Materials Science · Physics 2010-12-01 S. A. Ivanov , P. Nordblad , R. Mathieu , R. Tellgren , C. Ritter

Structural and magnetic properties have been studied for polycrystalline Zn_{1-x}TM_xO, where TM (transition metal ions) = Mn, Fe, and Co. No bulk ferromagnetism was observed for single-phase materials, contrary to the existing theories.…

Materials Science · Physics 2009-11-10 S. Kolesnik , B. Dabrowski , J. Mais

The recent discovery of borophene, a two-dimensional allotrope of boron, raises many questions about its structure and its chemical and physical properties. Boron has a high chemical affinity to oxygen but little is known about the…

Materials Science · Physics 2020-02-28 Florian M. Arnold , Gotthard Seifert , Jens Kunstmann

Twisted oxide membranes represent a promising platform for exploring moire physics and emergent quantum phenomena. However, the presence of amorphous interfacial dead layers in conventional oxide heterostructures impedes coherent coupling…

Materials Science · Physics 2026-01-30 Young-Hoon Kim , Reza Ghanbari , Min-Hyoung Jung , Young-Min Kim , Ruijuan Xu , Miaofang Chi

The dimensionality of quantum materials strongly affects their physical properties. Although many emergent phenomena, such as charge-density wave and Luttinger liquid behavior, are well understood in one-dimensional (1D) systems, the…

Materials Science · Physics 2023-09-19 Xian Du , Yidian Li , Wenxuan Zhao , Runzhe Xu , Kaiyi Zhai , Yulin Chen , Lexian Yang

VO$_2$ is a unique phase change material with strongly anisotropic electronic properties. Recently, samples have been prepared that present a co-existence of phases and thus form metal-insulator junctions of the same chemical compound.…

Materials Science · Physics 2018-03-14 Miller Eaton , Alessandra Catellani , Arrigo Calzolari

Environmentally benign (1-x)Ba(Ti$_{0.8}$Zr$_{0.2}$)O$_3$-x(Ba$_{0.7}$Ca$_{0.3}$)TiO$_3$ (BZT-BCT) ceramics are promising materials due to their remarkable high piezoresponse [Liu and Ren, Phys. Rev. Lett. \textbf{103}, 257602 (2009)]. In…

We have fabricated epitaxial films of CeTiO3 (CTO) on (001)oriented SrTiO3(STO) substrates, which exhibit highly insulating and diamagnetic properties. X-ray photoelectron spectroscopy (XPS) was to establish the 3+ valence state of the Ve…

Strongly Correlated Electrons · Physics 2018-08-01 Pramod Ghising , Debarchan Das , Shubhankar Das , Z. Hossain

A new lead-free (1-x)Li0.12Na0.88NbO3-xBaTiO3 (0 to x to 40) piezoelectric ceramics have been prepared using conventional ceramics processing route. Structural analysis revealed an existence of morphotropic phase boundary (MPB), separating…

Materials Science · Physics 2014-12-24 Supratim Mitra , Ajit R. Kulkarni

Effect of an internal chemical pressure on structural, optical, magnetic and electrical properties in Bi0.9RE0.1FeO3 Ceramics (RE =Gd3+,Tb3+,Dy3+)has been studied extensively. Some of the highlights are as follows; 1. Coexistence of…

Materials Science · Physics 2012-06-26 T. Karthik , T. Durga Rao , A. Srinivas , Saket Asthana

The ability to imprint a given material property to another through proximity effect in layered two-dimensional materials has opened the way to the creation of designer materials. Here, we use molecular-beam epitaxy (MBE) for a direct…

A recent experiment by Shan {\it et al} [arXiv:2304.09011] found that rhenium trioxide ReO$_3$, a simple metal at the ambient pressure, becomes superconducting with a transition temperature as high as 17 K at 30 GPa. In this paper, we…

Superconductivity · Physics 2024-11-06 Aiqin Yang , Xiangru Tao , Yundi Quan , Peng Zhang

Two perovskite-derived materials, CaCu3Mn4O12 and CaCu3Ti4O12, have drawn much recent interest due to their magnetoresistive, dielectric, and magnetoelectronic characteristics. Here we present initial theoretical insights into each of these…

Materials Science · Physics 2007-05-23 M. D. Johannes , W. E. Pickett , R. Weht

Ferroelectric membranes transferred onto arbitrary substrates provide reduced mechanical clamping at the interfaces that can diminish the effective polarization-rotation barrier offering a pathway to engineer larger electromechanical and…

Indium tin oxide (Sn-doped In$_2$O$_{3-\delta}$ or ITO) is an interesting and technologically important transparent conducting oxide. This class of material has been extensively studied for decades, with research efforts focusing on the…

Mesoscale and Nanoscale Physics · Physics 2017-03-29 Juhn-Jong Lin , Zhi-Qing Li

The structural, electronic, and dielectric (optical) properties of graphene-like 2D MgO monolayer have been explored through first-principles calculations under bi-axial tensile and compressive mechanical strain within a range of -10% to…

Materials Science · Physics 2024-05-31 Kamal Kumar , Anjali Kumari , Soni Mishra , Ramesh Sharma , Abhishek Kumar Mishra

Highly doped Poly(3,4-ethylenedioxythiophene) or PEDOT is a conductive polymer with a wide range of applications in energy conversion due to its ease of processing, optical properties and high conductivity. The latter is influenced by…

Mesoscale and Nanoscale Physics · Physics 2017-01-04 David Gelbwaser-Klimovsky , Semion K. Saikin , Randall H. Goldsmith , Alán Aspuru-Guzik

We introduce the use of pure molten ortho-phosphoric acid (o-H3PO4) as an electrolyte for selforganizing electrochemistry. This electrolyte allows for the formation of self-organized oxide architectures (one-dimensional nanotubes,…

We report a single crystal neutron and x-ray diffraction study of the hybrid improper multiferroic Ca3Mn1.9Ti0.1O7 (CMTO), a prototypical system where the electric polarization arises from the condensation of two lattice distortion…

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