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Chemically realistic quasi-one-dimensional (1D) materials in which Dirac fermions and highly degenerate flat bands coexist intrinsically at the Fermi level are exceedingly rare, while representing a highly desirable platform for correlated…

Materials Science · Physics 2026-03-19 Shivam Sharma , Chenhaoyue Wang , Hsuan Ming Yu , Amartya S. Banerjee

We report a systematic investigation of the physical properties and Fermi-surface topology of layered single-crystal \ce{SrCu4As2} using electrical transport, magnetotransport, and quantum-oscillation experiments plus band-structure…

Strongly Correlated Electrons · Physics 2025-10-17 Sudip Malick , Michał J. Winiarski , Joanna Bławat , Hanna Świątek , John Singleton , Tomasz Klimczuk

At ambient pressure CaFe2As2 has been found to undergo a first order phase transition from a high temperature, tetragonal phase to a low temperature orthorhombic / antiferromagnetic phase upon cooling through T ~ 170 K. With the application…

The ground-state structure of monolayers and nanoplatelets of SnS with a thickness from two to five monolayers is calculated from first principles. It is shown that nanoobjects with only odd number of monolayers are ferroelectric. The…

Materials Science · Physics 2018-10-30 Alexander I. Lebedev

Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoretical study of the symmetry-based electronic and optical…

Materials Science · Physics 2023-05-09 Sergio Bravo , M. Pacheco , V. Nunez , J. D. Correa , Leonor Chico

Large-area and high-quality single-layer transition metal dichalcogenides can be synthesized by epitaxial growth on single-crystal substrates. An important advantage of this approach is that the interaction between the single-layer and the…

Perpendicularly magnetized spin injector with high Curie temperature is a prerequisite for developing spin optoelectronic devices on 2D materials working at room temperature (RT) with zero applied magnetic field. Here, we report the growth…

The compound CaV2O4 contains V^{+3} cations with spin S = 1 and has an orthorhombic structure at room temperature containing zigzag chains of V atoms running along the c-axis. We have grown single crystals of CaV2O4 and report…

A caged compound CeOs2Al10, crystallizing in the orthorhombic YbFe2Al10-type structure, undergoes a mysterious phase transition at T_0=29 K. We report the results of electron diffraction, magnetization, and magnetoresistance for single…

Strongly Correlated Electrons · Physics 2015-05-19 Y. Muro , J. Kajino , K. Umeo , K. Nishimoto , R. Tamura , T. Takabatake

The exploitation of piezoelectric ferromagnetism (PFM) in two-dimensional (2D) materials with large out-of-plane piezoelectric response is motivated not only by technological applications but also scientific interest. In this study, the…

Materials Science · Physics 2024-06-11 Qiuyue Ma , Guochun Yang , Busheng Wang , Yong Liu

In this study we present a theoretical investigation of structural, electronic and mechanical properties of pentagonal monolayers of carbon (p-graphene), boron nitride (p-B$_{2}$N$_{4}$ and p-B$_{4}$N$_{2}$) and silver azide (p-AgN$_{3}$)…

Materials Science · Physics 2015-10-06 M. Yagmurcukardes , H. Sahin , J. Kang , E. Torun , F. M. Peeters , R. T. Senger

This study investigates the structural, mechanical, and electronic properties of novel two-dimensional (2D) pentaoctite (PO) monolayers composed of group-IV elements (PO-C, PO-Si, PO-Ge, and PO-Sn) using first-principles calculations.…

Mesoscale and Nanoscale Physics · Physics 2024-09-13 Vanessa D. Kegler , Igor S. S. de Oliveira , Dominike Pacine , Ricardo W. Nunes , Teldo A. S. Pereira , Erika N. Lima

Two-dimensional (2D) ferromagnetic semiconductors show great interest due to their potential applications for the nanoscale electronic devices. In this work, the Janus 2$H$-Gd$XY$ ($X$, $Y$=Cl, Br, I, $X$$\neq$$Y$) monolayers with…

Materials Science · Physics 2023-04-12 Cunquan Li , Yukai An

Pb$_2$CoOsO$_6$ is a newly synthesized polar metal in which inversion symmetry is broken by the magnetic frustration in an antiferromagnetic ordering of Co and Os sublattices. The coupled magnetic and structural transition occurs at 45 K at…

La$_{0.4}$Na$_{0.6}$Fe$_2$As$_2$ single crystals have been grown out of an NaAs flux in an alumina crucible and characterized by measuring magnetic susceptibility, electrical resistivity, specific heat, as well as single crystal x-ray and…

Pentagonal PdSe2 is a promising candidate for layered electronic devices, owing to its high air-stability and anisotropic transport properties. Here, we investigate the performance of p-type FET based on PdSe$_2$ mono-layer using…

Mesoscale and Nanoscale Physics · Physics 2023-05-02 Keshari Nandan , Amit Agarwal , Somnath Bhowmick , Yogesh S. Chauhan

MnSn monolayer synthesized recently is a novel two-dimensional ferromagnetic material with a hexagonal lattice, in which three Mn atom come together to form a trimer, making it remarkably different from other magnetic two-dimensional…

Materials Science · Physics 2024-06-19 Panjun Feng , Xiaohui Zhang , Dapeng Liu , Shuo Zhang , Xun-Wang Yan , Z. Y. Xie

We report a combined study of transport and thermodynamic measurements on the layered pnictide material SrAg4As2. Upon cooling, a drop in electrical and Hall resistivity, a jump in heat capacity and an increase in susceptibility and…

Strongly Correlated Electrons · Physics 2018-12-19 Bing Shen , Eve Emmanouilidou , Xiaoyu Deng , Alix McCollam , Jie Xing , Gabriel Kotliar , Amalia I. Coldea , Ni Ni

Recently, two-dimensional materials and nanoparticles with robust ferromagnetism are even of great interest to explore basic physics in nanoscale spintronics. More importantly, room-temperature magnetic semiconducting materials with high…

Materials Science · Physics 2018-03-23 Xi Chen , Zheng-Zhe Lin

Structural, magnetization and heat capacity studies were performed on Ce$_2$(Pd$_{1-x}$Ni$_x$)$_2$Sn ($0 \leq x \leq 1$) alloys. The substitution of Pd atoms by isoelectronic Ni leads to a change in the crystallographic structure from…

Strongly Correlated Electrons · Physics 2011-03-02 J. G. Sereni , G. Schmerber , A. Braghta , B. Chevalier , J. P. Kappler