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相关论文: c(2x2) Interface Alloys in Co/Cu Multilayers - Inf…

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The advent of magnetic two-dimensional electron gases (2DEGs) at oxide interfaces has provided new opportunities in the field of spintronics. The enhancement of magnetism in 2DEGs at oxide interfaces continues to be a significant challenge,…

By means of the first-principle calculations, we have investigated electronic, magnetic properties and correlation effects for the newly discovered layered oxyselenide Na2Fe2Se2O. Our results reveal that the electron correlations in the Fe…

材料科学 · 物理学 2015-06-05 D. V. Suetin , I. R. Shein , A. L. Ivanovskii

All-Heusler multilayer structures have been investigated by means of high kinetic x-ray photoelectron spectroscopy and x-ray magnetic circular dichroism, aiming to address the amount of disorder and interface diffusion induced by annealing…

Interface magnetism and topological structure of Fe on organic semiconductor film (Alq3) have been studied and compared with Fe film deposited directly on Si (100) substrate. To get information on the diffused Fe layer at the Fe/Alq3…

In this paper we report the existence of a giant magnetocaloric effect (MCE) in a intermetallic compound non-containing rare-earth. This effect is associated with the concomitant occurrence of a structural and a magnetic transition. The…

材料科学 · 物理学 2009-11-07 L. Pareti , M. Solzi , F. Albertini , A. Paoluzi

We report a combined experimental and theoretical study of the unusual ferromagnetism in the one-dimensional copper-iridium oxide Sr$_3$CuIrO$_6$. Utilizing Ir $L_3$ edge resonant inelastic x-ray scattering, we reveal a large gap magnetic…

强关联电子 · 物理学 2013-08-05 Wei-Guo Yin , X. Liu , A. M. Tsvelik , M. P. M. Dean , M. H. Upton , Jungho Kim , D. Casa , A. Said , T. Gog , T. F. Qi , G. Cao , J. P. Hill

The effect of Mn intercalation on the atomic, electronic and magnetic structure of the graphene/Cu(111) interface is studied using state-of-the-art density functional theory calculations. Different structural models of the…

材料科学 · 物理学 2021-12-23 Qilin Guo , Yuriy Dedkov , Elena Voloshina

We study the effect of spatial inhomogeneity on the physics of a strongly correlated electron system exhibiting a metallic phase and a Mott insulating phase, represented by the simple Hubbard model. In three dimensions, we consider various…

强关联电子 · 物理学 2015-05-14 Giovanni Borghi , Michele Fabrizio , Erio Tosatti

This work explores the static and dynamic magnetic properties of weakly antiferromagnetically coupled Fe/Ti superlattices, emphasizing the link between magnetic behavior and structural characteristics. HRTEM and XRD analyses confirm…

$\require{mediawiki-texvc}$ We demonstrate that the low symmetry of armchair lateral heterojunction between transition metal dichalcogenide monolayers allows for the mixing of $\mathbf{K}_+$ and $\mathbf{K}_-$ valleys. From the tight…

介观与纳米尺度物理 · 物理学 2024-08-20 M. V. Durnev , D. S. Smirnov

In high Tc superconductors the magnetic and electronic properties are determined by the probability that valence electrons virtually jump from site to site in the CuO2 planes, a mechanism opposed by on-site Coulomb repulsion and favored by…

We investigated the effect of Fe segregated from partially Fe-substituted MgO (MgFeO) on the magnetic properties of CoFeB/MgFeO multilayers. X-ray photoelectron spectroscopy (XPS) as well as magnetic measurements revealed that the…

介观与纳米尺度物理 · 物理学 2023-08-21 Tomohiro Ichinose , Tatsuya Yamamoto , Takayuki Nozaki , Kay Yakushiji , Shingo Tamaru , Shinji Yuasa

Grain boundaries have been shown to dramatically influence the behavior of relatively simple materials such as monatomic metals and binary alloys. The increased chemical complexity associated with multi-principal element alloys is…

The intrinsic stress in nanomultilayers (NMLs) is typically dominated by interface stress, which is particularly high in immiscible Cu/W NMLs. Here, atomistic simulations with a chemically-accurate neural network potential reveal the role…

Based on first-principles calculations, we discover a two-dimensional layered antiferromagnetic (AFM) electride Gd$_2$O, where anionic excess electrons exist in the interstitial spaces between positively charged cationic layers. It is…

材料科学 · 物理学 2022-01-26 Shuyuan Liu , Chongze Wang , Hyunsoo Jeon , Jeehoon Kim , Jun-Hyung Cho

The effects of Cu-doping on the structural, magnetic, and transport properties of La0.7Sr0.3Mn1-xCuxO3 (0 < x < 0.20) have been studied using neutron diffraction, magnetization and magnetoresistance (MR) measurements. All samples show the…

材料科学 · 物理学 2009-11-11 M. S. Kim , J. B. Yang , Q. Cai , X. D. Zhou , W. J. James , W. B. Yelon , P. E. Parris , D. Buddhikot , S. K. Malik

Meeting of non-trivial topology with magnetism results in novel phases of matter, such as Quantum Anomalous Hall (QAH) or axion insulator phases. Even more exotic states with high and tunable Chern numbers are expected at the contact of…

In this paper, high Fe-concentration Fe$_{1-x}$Ni$_{x}$ alloys were investigated using high resolution X-ray photoelectron spectroscopy (XPS) down to 10K temperature. The Fe 2s core level exhibits three features, two low binding features…

强关联电子 · 物理学 2019-05-14 S. S. Acharya

Asymmetry of conduction of electrons in the spin majority and minority bands of a ferromagnetic metal is well known to produce spin accumulation at the boundary with a normal metal when a current is injected through the interface. However,…

凝聚态物理 · 物理学 2007-05-23 Pavel Krotkov , Maxim Dzero

We study the mechanism of the mass enhancement in an intermediate-valent regime of heavy-fermion materials. We find that the crossovers between the Kondo, intermediate valent, and almost empty f-electron regimes become sharp with the…

强关联电子 · 物理学 2011-06-14 Katsunori Kubo