中文
相关论文

相关论文: Half-metallic ferromagnetism and Ru-induced locali…

200 篇论文

We have studied in details the electronic structure and magnetism in M (Mn and Cr) doped semiconducting half-Heusler compounds FeVSb, CoTiSb and NiTiSn (XM$_{x}$Y$_{1-x}$Z) in a wide concentration range using local-spin density functional…

材料科学 · 物理学 2007-05-23 B. R. K. Nanda , I. Dasgupta

First-principles density functional theory (DFT) is used to investigate the electronic and magnetic properties of Sr$_4$Rh$_3$O$_{10}$, a member of the Ruddlesden-Popper series. Based on the DFT calculations taking into account the…

材料科学 · 物理学 2016-04-29 Madhav P. Ghimire , R. K. Thapa , D. P. Rai , Sandeep , T. P. Sinha , Xiao Hu

Using a full-potential \textit{ab-initio} technique I study the electronic and magnetic properties of the (001) surfaces of the half-Heusler alloys, NiMnSb, CoMnSb and PtMnSb and of the full-Heusler alloys Co$_2$MnGe, Co$_2$MnSi and…

凝聚态物理 · 物理学 2009-11-07 I. Galanakis

Correlation effects play an important role in the electronic structure of half-metallic (HM) magnets. In particular, they give rise to non-quasiparticle states above (or below) the Fermi energy at finite temperatures that reduce the spin…

强关联电子 · 物理学 2015-06-17 Ersoy Sasioglu , Iosif Galanakis , Christoph Friedrich , Stefan Blügel

A concept is presented serving to guide in the search for new materials with high spin polarization. It is shown that the magnetic moment of half-metallic ferromagnets can be calculated from the generalized Slater-Pauling rule. Further, it…

材料科学 · 物理学 2009-05-21 G. H. Fecher , H. C. Kandpal , S. Wurmehl , C. Felser , G. Schönhense

Six half-metallic ferromagnets X0.75Y0.25C (X=Si, Ge, Sn and Y =Ca and Sr) with zinc-blende structure, resulting from alkaline-earth (Ca, Sr) substitution for X, are predicted based on the density functional theory. The calculated total…

材料科学 · 物理学 2012-01-06 Xiao-Ping Wei , Xian-Ru Hu , Hong Deng , Shi-Bin Chu , Jian-Bo Deng

We report a systematic investigation on the magnetization relaxation properties of iron-based half-metallic Heusler alloy Fe$_{2}$Cr$_{1-x}$Co_${x}$Si (FCCS) thin films using broadband angular-resolved ferromagnetic resonance. Band…

Two-dimensional (2D) high-temperature ferromagnetic materials are important for spintronic application. Fortunately, a highly-air-stable PdSe$_2$ monolayer semiconductor has been made through exfoliation from the layered bulk material. It…

介观与纳米尺度物理 · 物理学 2019-06-05 Shi-Hao Zhang , Bang-Gui Liu

We report the magnetic, magnetocaloric, and magnetotransport properties of the semi-Heusler alloy Cu0.85Ni0.15MnSb, which exhibits coexistence of antiferromagnetic (AFM) and ferromagnetic (FM) phases. A broad magnetic phase transition is…

强关联电子 · 物理学 2016-03-30 Madhumita Halder , K. G. Suresh , M. D. Mukadam , S. M. Yusuf

The thermoelectric (TE) properties of quaternary Heusler alloys (CoX'ZrAl; X'= V, Fe, Ir) are studied in the framework of Density Functional Theory and Boltzmann Transport Theory. The compound CoVZrAl is found to be semiconducting and the…

材料科学 · 物理学 2025-06-12 Poulami Biswas , Mahabubur Rahaman , Molly De Raychaudhury

The half-metallic properties of a new and promising full-Heusler compound, Zr2CoSn, are investigated by means of ab initio calculations within the Density Functional Theory framework. The ferromagnetic ordered Hg2CuTi-type crystal structure…

材料科学 · 物理学 2015-06-23 A. Birsan , V. Kuncser

Ferromagnetic solids acquire nontrivial magnetic and caloric properties when the temperature of the structural phase transition approaches the Curie point. Deciphering magneto-structural transitions, i.e. determining their characteristic…

We propose a strategy to obtain conducting organic materials with fully spin-polarized Fermi surface, lying at a singular flat band, with antiferromagnetically coupled magnetic moments that reside in pi-orbitals of nanographenes. We…

介观与纳米尺度物理 · 物理学 2026-04-17 J. Phillips , J. C. G. Henriques , J. Fernández-Rossier , A. T. Costa

Heusler alloys containing Co and Mn are amongst the most heavily studied half-metallic ferromagnets for future applications in spintronics. Using state-of-the-art electronic structure calculations, we investigate the effect of doping and…

材料科学 · 物理学 2009-11-11 I. Galanakis , K. Ozdogan , E. Sasioglu , B. Aktas

We consider, theoretically and experimentally, the effects of structural disorder, quantum and thermal fluctuations in the magnetic and transport properties of certain ferromagnetic alloys.We study the particular case of UCu2Si(2-x)Ge(x).…

强关联电子 · 物理学 2009-11-10 M. B. Silva Neto , A. H. Castro Neto , D. Mixson , J. S. Kim , G. R. Stewart

Half-metallic antiferromagnets are the ideal materials for spintronic applications since their zero magnetization leads to lower stray fields and thus tiny energy losses. Starting from the Mn$_2$VAl and Mn$_2$VSi alloys we substitute Co or…

材料科学 · 物理学 2007-09-01 I. Galanakis , K. Ozdogan , E. Sasioglu , B. Aktas

To understand the halfmetallic ferromagnet EuB6 we use the Kondo lattice model for valence and conduction band. By means of a recently developed many-body theory we calculate the electronic properties in the ferromagnetic regime up to the…

强关联电子 · 物理学 2009-11-11 M. Kreissl , W. Nolting

Based on the first-principles electronic structure calculations, we predict that a chromium oxide K$_2$Cr$_8$O$_{16}$ of hollandite type should be a half-metallic ferromagnet where the Fermi level crosses only the majority-spin band,…

强关联电子 · 物理学 2009-07-17 M. Sakamaki , T. Konishi , Y. Ohta

Altermagnetism has recently emerged as a distinct and fundamental class of magnetic order. Exploring its interplay with quantum phenomena such as unconventional superconductivity, density-wave instabilities, and many-body effects represents…

强关联电子 · 物理学 2025-09-18 Yuanji Xu , Huiyuan Zhang , Maoyuan Feng , Fuyang Tian

Li-based half-Heusler alloys have attracted much attention due to their potential applications in optoelectronics and because they carry the possibility of exhibiting large magnetic moments for spintronic applications. Due to their…

材料科学 · 物理学 2015-03-05 L. Damewood , B. Busemeyer , M. Shaughnessy , C. Y. Fong , L. H. Yang , C. Felser