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Related papers: Atomically thin dilute magnetism in Co-doped phosp…

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We discuss theoretically how electrons confined to two dimensions in a delta-doped heterostructure can arrange themselves in a droplet-like spatial distribution due to disorder and screening effects when their density is low. We apply this…

Strongly Correlated Electrons · Physics 2007-05-23 V. Tripathi , M. P. Kennett

Using the constrained-path Monte Carlo method, a two-orbital model for the pnictide superconductors is studied at half filling and in both the electron- and hole-doped cases. At half filling, a stable $(\pi,0)$/$(0,\pi)$ magnetic order is…

Strongly Correlated Electrons · Physics 2014-09-05 Guang-Kun Liu , Zhong-Bing Huang , Yong-Jun Wang

I introduce a doped two-dimensional quantum dimer model describing a doped Mott insulator and retaining the original Fermi statistics of the electrons. This model shows a rich phase diagram including a d-wave hole-pair unconventional…

Strongly Correlated Electrons · Physics 2008-04-24 Didier Poilblanc

Moir\'e heterostructures of transition metal dichalcogenides exhibit Mott-insulating behaviour both at half-filling as well as at fractional fillings, where electronic degrees of freedom form self-organized Wigner crystal states. An open…

Strongly Correlated Electrons · Physics 2024-01-31 Urban F. P. Seifert , Leon Balents

Doping a two-dimensional semiconductor with magnetic atoms is a possible route to induce magnetism in the material. We report on the atomic structure and electronic properties of monolayer WSe$_2$ intentionally doped with vanadium atoms by…

Generating spintronic devices has been a goal for the nano-science. We have used density function theory to determine magnetic phases of single layer and bilayer lithium doped graphene nanoflakes. We have introduced graphene flakes as…

Mesoscale and Nanoscale Physics · Physics 2016-02-03 Narjes Kheirabadi

A magnetotransport study in magnetically doped (Cd,Mn)Te 2D quantum wells reveals an apparent metal-insulator transition as well as an anomalous intermediate phase just on its metallic side. This phase is characterized by colossal…

Mesoscale and Nanoscale Physics · Physics 2010-01-10 J. Jaroszynski , T. Andrearczyk , G. Karczewski , J. Wróbel , T. Wojtowicz , Dragana Popovic , T. Dietl

We successfully dope the magnetically silent double perovskite semiconductor Sr2GaSbO6 to induce ferromagnetism and tune its band gap, with Ga3+ partially substituted by the magnetic trivalent cation Mn3+, in a rigid cation ordering with…

Materials Science · Physics 2022-01-24 Lun Jin , Danrui Ni , Xin Gui , Daniel B. Straus , Qiang Zhang , Robert J. Cava

A recently discovered magnetic semiconductor Ba$_{1-x}$K$_{x}$(Zn$_{1-y}$Mn$_{y}$)$_2$As$_{2}$, with its decoupled spin and charge doping, provides a unique opportunity to elucidate the microscopic origin of the magnetic interaction and…

Materials Science · Physics 2014-10-17 J. K. Glasbrenner , I. Žutić , I. I. Mazin

The dilute magnetic semiconductors have promise in spin-based electronics applications due to their potential for ferromagnetic order at room temperature, and various unique switching and spin-dependent conductivity properties. However, the…

Polar metals characterized by the simultaneous coexistence of ferroelectric distortions and metallicity have attracted tremendous attention. Developing such materials at low dimensions remains challenging since both conducting electrons and…

Materials Science · Physics 2020-03-24 Tao Xu , Jingtong Zhang , Yuquan Zhu , Jie Wang , Takahiro Shimada , Takayuki Kitamura , Tong-Yi Zhang

Because it is easily switched from insulator to metal either via chemical doping or electrical gating, silicon is at the core of modern information technology and remains a candidate platform for quantum computing. The metal-to-insulator…

Dilute magnetic semiconductors (DMS) are nonmagnetic semiconductors doped with magnetic transition metals. The recently discovered DMS material (Ba$_{1-x}$K$_{x}$)(Zn$_{1-y}$Mn$_{y}$)$_{2}$As$_{2}$ offers a unique and versatile control of…

Materials Science · Physics 2018-03-28 M. A. Surmach , B. J. Chen Z. Deng , C. Q. Jin , J. K. Glasbrenner , I. I. Mazin , A. Ivanov , D. S. Inosov

Magnetic impurities provide a route toward increasing functionality in electronic materials, often enabling new device concepts and architectures. In the case of topological semimetals, dilute magnetic doping presents a particularly…

The future of spintronic and semiconductor applications demands materials with tailored electronic and magnetic properties. This study uses density functional theory to investigate the electronic structure of the half-metallic compound…

Materials Science · Physics 2025-07-08 Sujoy Datta , Prashant Singh

Based on the first-principles electronic structure calculations, we investigate the magnetic and electronic properties of transition-metal-doped Pb$_{10}$(PO$_4$)$_6$O with the Pb atom substituted by various transition metals. The $3d$…

Materials Science · Physics 2023-10-02 Bingxin Liu , Tong Liu , Xun-Wang Yan , Zong-Liang Li

The integration of two-dimensional (2D) van der Waals (vdW) magnets with topological insulators or heavy metals holds great potential for realizing next-generation spintronic memory devices. However, achieving high-efficiency SOT switching…

We study the properties of heterostructures formed by two layers of diluted magnetic semiconductor separated by a nonmagnetic semiconductor layer. We find that there is a RKKY-type exchange coupling between the magnetic layers that oscilles…

Materials Science · Physics 2009-11-07 M. P. López-Sancho , M. C. Muñoz , L. Brey

The electronic and magnetic properties of cobalt (Co) doped monolayer (ML) tungsten diselenide (WSe2) are investigated using the density functional theory with the on-site Hubbard potential correction (DFT+U) for the localized d orbitals of…

Materials Science · Physics 2021-11-05 Dinesh Thapa , Dinh Loc Duong , Seok Joon Yun , Santosh KC , Young Hee Lee , Seong-Gon Kim

Disentangling the relationship between the insulating state with a charge gap and the magnetic order in an antiferromagnetic (AF) Mott insulator remains difficult due to inherent phase separation as the Mott state is perturbed. Measuring…

Strongly Correlated Electrons · Physics 2022-03-17 He Zhao , Sujit Manna , Zach Porter , Xiang Chen , Andrew Uzdejczyk , Jagadeesh Moodera , Ziqiang Wang , Stephen D. Wilson , Ilija Zeljkovic