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相关论文: Symmetry protected 1D chains in mixed-valence iron…

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In the absence of magnetic field or spin-orbit coupling the one-parameter scaling theory predicts localization of all states in two-dimensional (2D) disordered systems, for any amount of disorder. However, a 2D metallic phase has been…

无序系统与神经网络 · 物理学 2016-04-20 Shie-Jie Xiong , G. N. Katomeris , S. N. Evangelou

The search for symmetry-protected 2D Dirac semimetals analogous to graphene is important both for fundamental and practical interest. The 2D Dirac cones are protected by crystalline symmetries and magnetic ordering may destroy their…

介观与纳米尺度物理 · 物理学 2017-03-23 Jing Wang

One-dimensional (1D) chains offer unique opportunities for nanoelectronics and spintronics, yet their experimental realization remains challenging because 1D motifs are often thermodynamically disfavored relative to higher-dimensional…

Spontaneous breaking of rotational symmetry and preferential orientation of stripe phases in the quantum Hall regime has attracted considerable experimental and theoretical effort over the last decade. We demonstrate experimentally and…

Low-dimensional organic conductors could establish themselves as model systems for the investigation of the physics in reduced dimensions. In the metallic state of a one-dimensional solid, Fermi-liquid theory breaks down and spin and charge…

强关联电子 · 物理学 2007-11-08 Martin Dressel

Magnonic crystals are magnetic metamaterials, that provide a promising way to manipulate magnetodynamic properties by controlling the geometry of the patterned structures. Here, we study the magnetodynamic properties of 1D magnonic crystals…

介观与纳米尺度物理 · 物理学 2021-08-05 Suraj Singh , Xiansi Wang , Ankit Kumar , Alireza Qaiumzadeh , Peter Svedlindh , Thomas Tybell , Erik Wahlström

Since the discovery of pressure-induced superconductivity in the two-leg ladder system BaFe$_2X_3$ ($X$=S, Se), with the 3$d$ iron electronic density $n = 6$, the quasi-one-dimensional iron-based ladders have attracted considerable…

强关联电子 · 物理学 2020-04-22 Yang Zhang , Ling-Fang Lin , Adriana Moreo , Shuai Dong , Elbio Dagotto

Superconducting [(Li(1-x)Fex)OH](Fe(1-y)Liy)Se (x ~ 0.2, y ~ 0.08) was synthesized by hydrothermal methods and structurally characterized by single crystal X-ray diffraction. The crystal structure contains anti-PbO type (Fe(1-y)Liy)Se…

Although iron-based superconductors are multi-orbital systems with complicated band structures, we demonstrate that the low energy physics which is responsible for high-$T_c$ superconductivity is essentially governed by one effective…

超导电性 · 物理学 2012-06-05 Jiangping Hu , Ningning Hao

We report a detailed investigation of the magnetic order in 192 stable magnetic two-dimensional materials from the Computational 2D Materials Database having one magnetic atom in the unit cell. The calculations are based on a systematic…

材料科学 · 物理学 2024-08-09 Joachim Sødequist , Thomas Olsen

We demonstrate that it is possible to rationally incorporate both an isolated flat band, and the physics of zero dimensions (0D), one dimension (1D), and two dimensions (2D) in a single 2D material. Such unique electronic properties are…

介观与纳米尺度物理 · 物理学 2020-09-08 Juefan Wang , Su Ying Quek

Inspired by recent experimental realizations of two-dimensional (2D) metals and alloys, we theoretically investigate the stability and electronic properties of monolayer (ML) Fe-C compounds and pure Fe. According to our and others…

材料科学 · 物理学 2015-09-08 Yangfan Shao , Rui Pang , Xingqiang Shi

We predict a new family of two-dimensional (2D) rare earth monochalcogenide materials MX (M = Sc, Y; X = S, Se, Te). Based on first-principles calculations, we confirm their stability and systematically investigate their mechanical…

材料科学 · 物理学 2020-08-26 Hao Guo , Jianzhou Zhao , Cong Chen , Si Li , Wentao Jiang , Xiaobao Tian , Shengyuan A. Yang

We have measured the magnetic properties of a mixed valency iron phosphate. It presents an original structure with crossed chains containing Fe II and orthogonal to the longest direction of the crystallites. Microstructural investigations…

材料科学 · 物理学 2015-05-19 Laure Adam , Alain Pautrat , Olivier Perez , Philippe Boullay

Moir\'e systems provide a highly tunable platform for engineering band structures and exotic correlated phases. Here, we theoretically study a model for a single layer of graphene subject to a smooth moir\'e electrostatic potential, induced…

强关联电子 · 物理学 2023-06-30 Jeyong Park , Lasse Gresista , Simon Trebst , Achim Rosch , Jinhong Park

To perform a local orbital analysis of electronic and magnetic interactions, we construct the Wannier functions (WFs) of the Fe $3d$ orbitals in the parent compound of the recently discovered iron pnictide superconductors, LaFeAsO, and a…

超导电性 · 物理学 2010-07-20 Z. P. Yin , W. E. Pickett

We study the magnetic and electronic phases of a 1D magnetic adatom chain on a 2D superconductor. In particular, we confirm the existence of a `self-organized' 1D topologically non-trivial superconducting phase within the set of subgap…

超导电性 · 物理学 2016-10-20 M. H. Christensen , M. Schecter , K. Flensberg , B. M. Andersen , J. Paaske

We have used density-functional-theory methods and the ab initio random structure searching (AIRSS) approach to predict stable structures and stoichiometries of mixtures of iron and oxygen at high pressures. Searching was performed for 12…

材料科学 · 物理学 2015-08-24 Gihan L. Weerasinghe , R. J. Needs , Chris J. Pickard

Strong Coulomb repulsion and spin-orbit coupling are known to give rise to exotic physical phenomena in transition metal oxides. Initial attempts to investigate systems where both of these fundamental interactions are comparably strong,…

In a Radio-Frequency linear ion trap, 1D ion chains are routinely generated in laboratories around the world. They present a non-homogenous ion density along the chain. The possibility of generating uniformly distributed ion chain, where…

量子物理 · 物理学 2021-06-29 J. Pedregosa-Gutierrez , M. Mukherjee