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Related papers: Functionalized Cr$_2$C MXenes: Novel Magnetic Semi…

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We investigate the physical properties and electronic structure upon Cr-doping in the iron arsenide layers of BaFe2As2. This form of hole-doping leads to suppression of the magnetic/structural phase transition in BaFe2-xCrxAs2 for x > 0,…

Ti-based two-dimensional transition-metal carbides (MXenes) have attracted attention due to their superior properties and are being explored across various applications1,2. Despite their versatile properties, superconductivity has never…

Transition metal carbides/nitrides (MXenes) are a newly developing class of two-dimensional (2D) materials with technically robust properties that can be finely tuned by planar surface functionalization. Herein, the critical role of oxygen…

Materials Science · Physics 2020-08-17 Hongzhi Yu , Ke Xu , Zhisen Zhang , Jian Weng , Jianyang Wu

Two-dimensional (2D) materials, especially their most prominent member, graphene, have greatly influenced many scientific areas. Moreover, they have become a base for investigating the relativistic properties of condensed matter within the…

MXene, the two-dimensional derivatives of MAX compounds, due to their structural and compositional flexibility, is an ideal family of compounds to study a number of structure-property relations. In this work, we have investigated the…

Materials Science · Physics 2024-02-28 Himangshu Sekhar Sarmah , Subhradip Ghosh

We have studied the variation of Tc with charge density and lattice parameters in Mg1-xAlxB2 superconducting samples at low Al doping x<8%. We show that high Tc occurs where the chemical potential is tuned at a "superconducting shape…

Superconductivity · Physics 2011-02-01 A. Bianconi , D. Di Castro , S. Agrestini , G. Campi , N. L. Saini , A. Saccone , S. De Negri , M. Giovannini

The two-dimensional transition metal carbide/nitride family (MXenes) has garnered significant attention due to their highly customizable surface functional groups. Leveraging modern material science techniques, the customizability of MXenes…

Mesoscale and Nanoscale Physics · Physics 2023-10-31 Jiamin Liu , Guo Li , Xinxu Zhang , Jiahao Wei , Hui Jia , Yulong Wu , Changlong Liu , Yonghui Li

We report $^{11}$B-NMR study on Al-doped MgB$_2$ that addresses a possible mechanism for a high superconducting (SC) transition temperature ($T_c$) of $\sim 40$ K in recently discovered MgB$_2$. The result of nuclear spin lattice relaxation…

Superconductivity · Physics 2009-11-07 H. Kotegawa , K. Ishida , Y. Kitaoka , T. Muranaka , N. Nakagawa , H. Takagiwa , J. Akimitsu

Using density functional theory calculations we establish the hitherto unknown compound CrCTe$_3$ to be a stable anti-ferromagnetic semiconductor in the R$\bar{3}$ crystal structure with an indirect fundamental gap . Successive layers in…

Materials Science · Physics 2017-08-02 Satyananda Chabungbam , Prasenjit Sen

A-type antiferromagnetism, with an in-plane ferromagnetic order and the interlayer antiferromagnetic coupling, owns inborn advantages for electrical manipulations but is naturally rare in real materials except in those artificial…

Materials Science · Physics 2023-04-18 Xinyu Yang , Ning Ding , Jun Chen , Ziwen Wang , Ming An , Shuai Dong

Magnetic excitations are important quantum phenomena in magnetic systems and have been widely studied in individual magnetic atoms and molecules as well as their assembled structures over the past few decades. Using scanning tunneling…

We present a comprehensive first-principles study of hydrogenated M2X (M = Mo, V, Zr; X = C, N) MXene monolayers, focusing on their structural stability, electronic properties, and superconducting behavior. Structural optimizations combined…

Superconductivity · Physics 2026-02-24 Jakkapat Seeyangnok , Udomsilp Pinsook

The iron arsenide Sr2CrO3FeAs with the tetragonal Sr2GaO3CuS-type structure was synthesized and its crystal structure re-determined by neutron powder diffraction. In contrast to previous X-ray crystallographic studies, a mixed occupancy of…

Superconductivity · Physics 2010-02-24 Marcus Tegel , Franziska Hummel , Yixi Su , Tapan Chatterji , Michela Brunelli , Dirk Johrendt

When monolayers of two-dimensional (2D) materials are stacked into van der Waals structures, interlayer electronic coupling can introduce entirely new properties, as exemplified by recent discoveries of moir\'e bands that host highly…

Cr2Ge2Te6 is an intrinsic ferromagnetic semiconductor with van der Waals type layered structure, thus represents a promising material for novel electronic and spintronic devices. Here we combine scanning tunneling microscopy and…

Materials Science · Physics 2019-05-08 Zhenqi Hao , Haiwei Li , Shunhong Zhang , Xintong Li , Gaoting Lin , Xuan Luo , Yuping Sun , Zheng Liu , Yayu Wang

By density functional theory calculations, we predict a stable two-dimensional (2D) ferromagnetic semiconductor Cr$_2$Ge$_2$Se$_6$, where the Curie temperature $T$$_c$ can be dramatically enhanced beyond room temperature by applying a few…

Materials Science · Physics 2019-07-17 Xue-Juan Dong , Jing-Yang You , Bo Gu , Gang Su

Semiconducting MXenes are an intriguing two-dimensional (2D) material class with promising electronic and optoelectronic properties. Here, we focused on recently prepared Hf-based MXenes, namely Hf$_3$C$_2$O$_2$ and Hf$_2$CO$_2$. Using the…

Materials Science · Physics 2024-04-03 Nilesh Kumar , Miroslav Kolos , Sitangshu Bhattacharya , František Karlický

Sr2Cr3As2O2 is composed of alternating square-lattice CrO2 and Cr2As2 stacking layers, where CrO2 is isostructural to the CuO2 building-block of cuprate high-Tc superconductors and Cr2As2 to Fe2As2 of Fe-based superconductors. Current…

Two-dimensional van der Waals heterostructures are potential game changers both in understanding the fundamental physics and in the realization of various devices that exploit magnetism at the nanoscale. Multiferroic heterostructures…

Materials Science · Physics 2024-12-12 Himangshu Sekhar Sarma , Subhradip Ghosh

The properties of MXenes, a new group of quasi-two-dimensional d-metal carbide or nitride nanomaterials derived by chemical exfoliation from the MAX phases, can be very sensitive to the presence of surface functional groups. Herein, the…

Materials Science · Physics 2013-04-10 Andrey N. Enyashin , Alexander L. Ivanovskii