中文
相关论文

相关论文: Designed Metamagnetism in CoMnGe_{1-x}P_{x}

200 篇论文

MnTe has recently emerged as a canonical altermagnet, a newly identified class of magnetism characterized by compensated antiferromagnetic order coexisting with spin-split electronic bands, traditionally considered exclusive to…

Systematic investigations of the structural and magnetic properties of single crystal (Ga,Mn)N films grown by metal organic vapor phase epitaxy are presented. High resolution transmission electron microscopy, synchrotron x-ray diffraction,…

Rational material design by elemental substitution is useful in tailoring materials to have desirable properties. Here we consider three non-equivalent substitutional series based on Co$_2$FeGe, viz; (Co$_{2-\alpha}$Mn$_\alpha$)FeGe,…

材料科学 · 物理学 2025-09-26 R. Mahat , S. Budhathoki , S. Regmi , J. Y. Law , V. Franco , W. H. Butler , A. Gupta , A. Hauser , P. LeClair

Around 50 years ago, Doniach [Proc. Phys. Soc. 91, 86 (1967)] predicted the existence of paramagnons in nearly ferromagnetic materials, recently measured in bulk Pd [Phys. Rev. Lett. 105, 027207 (2010)]. Here we predict the analogous effect…

介观与纳米尺度物理 · 物理学 2017-07-11 J. Ibañez-Azpiroz , M. dos Santos Dias , B. Schweflinghaus , S. Blügel , S. Lounis

Altermagnets (AMs) are a new class of magnetic materials that combine the beneficial spintronics properties of ferromagnets and antiferromagnets, garnering significant attention recently. Here, we have identified altermagnetism in a layered…

A ternary ferrimagnetic half-metal, constructed through substituting 25% Fe for Mn in zincblende semiconductor MnTe, is predicted in terms of accurate first-principles calculations. It has a large half-metallic (HM) gap of 0.54eV and its…

材料科学 · 物理学 2009-04-10 Li-Fang Zhu , Bang-Gui Liu

Ion implantation of Mn combined with pulsed laser melting is employed to obtain two representative compounds of dilute ferromagnetic semiconductors (DFSs): Ga1-xMnxAs and In1-xMnxAs. In contrast to films deposited by the widely used…

We present theoretical and experimental investigations of the magnetism of paramagnetic semiconductor CdSe:Mn nanocrystals and propose an efficient approach to the exposure and analysis of the underlying anti-ferromagnetic interactions…

介观与纳米尺度物理 · 物理学 2019-02-06 Shou-Jyun Zou , Sheng-Tsung Wang , Ming-Fan Wu , Wen-Bin Jian , Shun-Jen Cheng

Digital alloys of GaSb/Mn have been fabricated by molecular beam epitaxy. Transmission electron micrographs showed good crystal quality with individual Mn-containing layers well resolved; no evidence of 3D MnSb precipitates was seen in…

An exciting development over the past few decades has been the use of high-throughput computational screening as a means of identifying promising candidate materials for a variety of structural or functional properties. Experimentally, it…

材料科学 · 物理学 2020-02-12 Christina A. C. Garcia , Joshua D. Bocarsly , Ram Seshadri

Using a state-of-the-art full-potential electronic structure method within the local spin density approximation, we study the electronic and magnetic structure of Mn$_2$V-based full Heusler alloys: Mn$_2$VZ (Z=Al, Ga, In, Si, Ge, and Sn).…

材料科学 · 物理学 2007-05-23 K Ozdogan , I Galanakis , E Sasioglu , B Aktas

Hexagonal MnTe emerges as a critical component in designing magnetic quantum heterostructures, calling for a detailed study. After finding a suitable combination of exchange-correlation functional and corrections, our study within {\em ab…

材料科学 · 物理学 2024-01-30 Suman Rooj , Jayita Chakraborty , Nirmal Ganguli

A low-temperature magnetism was revealed in a series of sigma-Fe(100-x)Mo(x) alloys (x=45-53). Its characterization has been done using vibrating sample magnetometry, M\"ossbauer spectroscopy, and ac magnetic susceptibility. The magnetic…

强关联电子 · 物理学 2015-11-26 J. Cieslak , S. M. Dubiel , M. Reissner

Searches for physics beyond the Standard Model using spin sensors are susceptible to spurious frequency shifts and noise due to magnetic fields. Therefore a comagnetometer -- an auxiliary sensor that allows mundane magnetic field effects to…

原子物理 · 物理学 2025-09-15 Bassam Nima , Mingyu Fan , Aleksandar Radak , Andrew M. Jayich , Amar C. Vutha

We present a systematic study of the magnetic properties of L1$_0$ binary alloys FeNi, CoNi, MnAl and MnGa via two different density functional theory approaches. Our calculations show large magnetocrystalline anisotropies in the order…

材料科学 · 物理学 2015-02-23 Alexander Edström , Jonathan Chico , Adam Jakobsson , Anders Bergman , Jan Rusz

We describe a self consistent magnetic tight-binding theory based in an expansion of the Hohenberg-Kohn density functional to second order, about a non spin polarised reference density. We show how a first order expansion about a density…

材料科学 · 物理学 2009-11-13 A. T. Paxton , M. W. Finnis

We study the dynamics of a pair of nonlinear split-ring resonators (a `metadimer') excited by an alternating magnetic field and coupled magnetically. Linear metadimers of this kind have been recently used as the elementary components for…

光学 · 物理学 2014-11-25 Nikos Lazarides , Mario I. Molina , George P. Tsironis , Yuri S. Kivshar

Mechanical metamaterials, whose unique mechanical properties stem from their structural design rather than material constituents, are gaining popularity in engineering applications. In particular, recent advances in self-assembly techniques…

应用物理 · 物理学 2023-12-12 Hanxun Jin , Horacio D. Espinosa

Magnetic semiconductors are at the core of recent spintronics research endeavors. Chemically doped II-VI diluted magnetic semiconductors, such as (Zn$_{1-x}$Cr$_{x}$)Te, provide promising platform in this quest. However, a detailed…

材料科学 · 物理学 2023-03-20 J. Guo , A. Sarikhani , P. Ghosh , T. Heitmann , Y. S. Hor , D. K. Singh

We report the synthesis and characterization of bulk form diluted magnetic semiconductors Ba(Zn1-2xMnxCox)2As2 (0 <= x <= 0.15) with a crystal structure identical to that of 122-type Fe-based superconductors. Mn and Co co-doping into the…

强关联电子 · 物理学 2014-03-18 Huiyuan Man , Cui Ding , Shengli Guo , Guoxiang Zhi , Xin Gong , Quan Wang , Hangdong Wang , Bin Chen , F. L. Ning