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Related papers: Profile of the U 5f magnetization in U/Fe multilay…

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We present a theory to study the temperature-dependent behavior of surface states in a ferromagnetic semi-infinite crystal. Our approach is based on the single-site approximation for the \emph{s-f} model. The effect of the semi-infinite…

Disordered Systems and Neural Networks · Physics 2009-11-13 Alireza Saffarzadeh

We consider a multiferroic chain with a linear magnetoelectric coupling induced by the electrostatic screening at the ferroelectric/ferromagnet interface. We study theoretically the dynamic ferroelectric and magnetic response to external…

Materials Science · Physics 2010-08-03 A. Sukhov , C. Jia , P. P. Horley , J. Berakdar

Actinide elements produce a plethora of interesting physical behaviors due to the 5f states. This review compiles and analyzes progress in understanding of the electronic and magnetic structure of the 5f states in actinide metals.…

Strongly Correlated Electrons · Physics 2009-11-13 Kevin T. Moore , Gerrit van der Laan

The surfaces of neutron stars are likely sources of strongly polarized soft X rays due to the presence of strong magnetic fields. Scattering transport in the surface layers is critical to the determination of the emergent anisotropy of…

High Energy Astrophysical Phenomena · Physics 2023-03-15 Kun Hu , Matthew G. Baring , Joseph A. Barchas , George Younes

Intricate nature of magnetism in uranium-based Kondo lattices is a consequence of correlations between U-5$f$ and conduction electrons. Using linearized quasiparticle self-consistent GW plus dynamical mean-field theory, we demonstrate a…

Strongly Correlated Electrons · Physics 2023-05-16 Byungkyun Kang , Yongbin Lee , Liqin Ke , Hyunsoo Kim , Myoung-Hwan Kim

We investigate the occurrence of multicritical points under pressure and magnetic field in a model that describes two 5f bands (of either $\alpha$ or $\beta$ characters) which hybridize with a single itinerant conduction band. The…

Strongly Correlated Electrons · Physics 2020-02-10 S. G. Magalhaes , A. C. Lausmann , E. J. Calegari , P. S. Riseborough

We present a comprehensive study on the magnetization reversal in Fe/NiFe bilayer system by alternating the order of the magnetic layers. All the samples show growth-induced uniaxial magnetic anisotropy due to oblique angle deposition…

Reflected neutron beam originating from a crystal monochromator contains higher order wavelength contribution. Creating multilayer mirror structures with custom reflectivity curves including a monochromatic polarized neutron beam is a…

Materials Science · Physics 2011-09-23 D. G. Merkel , L. Bottyán , B. Nagy , Sz. Sajti , E. Szilágyi , R. Kovács-Mezei

Using X-ray magnetic circular dichroism (XMCD) measurements, we explore the possible existence of induced magnetic moments in thin Pt films deposited onto the ferrimagnetic insulator yttrium iron garnet (Y3Fe5O12). Such a magnetic proximity…

Resonant x-ray emission spectroscopy (RXES) was employed at the U L3 absorption edge and the La1 emission line to explore the 5f occupancy, nf, and the degree of 5f orbital delocalization in the hidden order compound URu2Si2. By comparing…

Strongly Correlated Electrons · Physics 2016-08-03 C. H. Booth , S. A. Medling , J. G. Tobin , R. E. Baumbach , E. D. Bauer , D. Sokaras , D. Nordlund , T. -C. Weng

The ruthenium content of half-metallic Mn$_2$Ru$_x$Ga thin films, with a biaxially-strained inverse Heusler structure, controls the ferrimagnetism that determines their magnetic and electronic properties. An extensive study of…

Several doped 6H hexagonal ruthenates, having the general formula Ba3MRu2O9, have been studied over a significant period of time in order to understand the unusual magnetism of ruthenium metal. However, among them, the M=Fe compound appears…

The occurence of spin-polarization at ZrO$_{2}$, Al$_{2}$O$_{3}$ and MgO surfaces is proved by means of \textit{ab-initio} calculations within the density functional theory. Large spin moments, as high as 1.56 $\mu_B$, develop at O-ended…

Materials Science · Physics 2009-11-11 S. Gallego , J. I. Beltran , J. Cerda , M. C. Munoz

Light polarization is one of the most fundamental features, equivalent to energy and coherence. Magnetism changes light polarization, and vice versa. The irradiation of intense circularly polarized femtosecond pules to magnetic materials…

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…

Mesoscale and Nanoscale Physics · Physics 2023-08-21 Tomohiro Ichinose , Tatsuya Yamamoto , Takayuki Nozaki , Kay Yakushiji , Shingo Tamaru , Shinji Yuasa

We consider singlet magnetism for the uranium ions in UPt$_3$ and URu$_2$Si$_2$ assuming that time-reversal symmetry is broken for the {\em coherent state of intermediate valence}. The relative weight of the two involved configurations…

Condensed Matter · Physics 2009-10-28 Victor Barzykin , Lev P. Gor'kov

We have investigated the electronic states of the uranium monochalcogenide US, which is a typical ferromagnetic uranium compound, using soft x-ray photoemission spectroscopy (SX-PES). In early ultraviolet photoemission spectroscopy studies,…

Strongly Correlated Electrons · Physics 2009-09-17 Y. Takeda , T. Okane , T. Ohkochi , Y. Saitoh , H. Yamagami , A. Fujimori , A. Ochiai

The temperature-dependence of the magnetization near the surface of a band-ferromagnet is measured with monolayer resolution. The simultaneous application of novel highly surface-sensitive techniques enables one to deduce the…

Strongly Correlated Electrons · Physics 2009-11-07 R. Pfandzelter , M. Potthoff

This study investigates magnetic domains in Fe/Si and Fe/Si + B4C multilayers using spin flip off-specular polarized neutron reflectometry. The results show that Fe/Si multilayers exhibit pronounced spin flip off-specular scattering…

We have employed resonant x-ray magnetic scattering to specifically probe the magnetic order of the rare-earth ions in multiferroic $\mathrm{TbMn_2O_5}$. Two energy resonances were observed, one originated from the E1-E1 dipolar transition…

Strongly Correlated Electrons · Physics 2009-11-13 R. D. Johnson , S. R. Bland , C. Mazzoli , T. A. W. Beale , C. H. Du , C. Detlefs , S. B. Wilkins , P. D. Hatton