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

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We present the depth-resolved nuclear resonance reflectivity (NRR) studies of the magnetization evolution in [57Fe(3 nm)/Cr(1.2 nm)]*10 multilayer under the applied external field. The measurements have been performed at the station BL09XU…

Mesoscale and Nanoscale Physics · Physics 2018-03-28 M. Andreeva , A. Gupta , G. Sharma , S. Kamali , K. Okada , Y. Yoda

In this work, we report on modelling results obtained with our recently developed simulation tool enabling nanoscopic description of electronic processes in X-ray irradiated ferromagnetic materials. With this tool, we have studied the…

We have studied the depth-dependent magnetic and structural properties of as-grown and optimally annealed Ga[1-x]Mn[x]As films using polarized neutron reflectometry. In addition to increasing total magnetization, the annealing process was…

This paper, I, presents new results from neutron inelastic scattering experiments on single crystals of UPd2Al3. The focus is on the experimental position whilst the sequel, II, advances theoretical perspectives. We present a detailed and…

Strongly Correlated Electrons · Physics 2007-05-23 A. Hiess , N. Bernhoeft , N. Metoki , G. H. Lander , B. Roessli , N. K. Sato , N. Aso , Y. Haga , Y. Koike , T. Komatsubara , Y. Onuki

A recent polarized neutron diffraction experiment on the 5d2 rhenium double perovskite Ba2YReO6 held at a low temperature uncovered weak magnetic diffraction peaks. Data analysis inferred a significantly reduced Re dipole moment, and…

Strongly Correlated Electrons · Physics 2021-03-24 S. W. Lovesey , D. D. Khalyavin , G. van der Laan , G. J. Nilsen

Magnetism of $UGe_2$ is due to the magnetic ordered moments of $5f$ uranium electrons. The strong spin-orbit coupling splits them into two groups. The magnetization is investigated in terms of two vector fields ${\bf M}_{1i}$ and ${\bf…

Strongly Correlated Electrons · Physics 2015-03-17 Naoum Karchev

Anderson models, based on quantum chemical studies of the molecule of U(C_8H_8)_2, are applied to investigate the problem of an U impurity in a metal. The special point here is that the U 5f-orbitals are divided into two subsets: an almost…

Strongly Correlated Electrons · Physics 2009-10-30 Mikito Koga , Wenjian Liu , Michael Dolg , Peter Fulde

Based on geometry optimization and magnetic structure investigations within density functional theory, unique uranium nitride fluoride UNF, isoelectronic with UO2, is shown to present peculiar differentiated physical properties. Such…

Materials Science · Physics 2018-08-30 Samir F Matar

We have used polarized and unpolarized neutron diffraction to determine the spatial distribution of the magnetization density induced by a magnetic field of 9 T in the tetragonal phase of K0.8Fe1.6Se2. The maximum entropy reconstruction…

Superconductivity · Physics 2013-12-04 S. Nandi , Y. Xiao , Y. Su , L. C. Chapon , T. Chatterji , W. T. Jin , S. Price , T. Wolf , P. J. Brown , Th. Brückel

In the majority of magnetic systems the surface is required to order at the same temperature as the bulk. In the present study, we report a distinct and unexpected surface magnetic phase transition, uniquely at a lower temperature than the…

Since the opacity of a magnetized plasma depends on polarization of radiation, the radiation emergent from atmospheres of neutron stars with strong magnetic fields is expected to be strongly polarized. The degree of linear polarization,…

Astrophysics · Physics 2009-10-31 G. G. Pavlov , V. E. Zavlin

The hyperfine interactions at the uranium site in the antiferromagnetic USb2 compound were calculated within the density functional theory (DFT) employing augmented plane wave plus local orbital (APW+lo) method. We investigated the…

Strongly Correlated Electrons · Physics 2007-05-23 A. Fathi , S. Jalali Asadabadi , M. G. Rad , H. Amini

We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \unpo. Earlier neutron diffraction and M\"{o}ssbauer studies had shown the presence of long-range AF order below T$_{N}$ =…

Strongly Correlated Electrons · Physics 2009-11-10 S. B. Wilkins , J. A. Paxiao , R. Caciuffo , P. Javorsky , F. Wastin , J. Rebizant , C. Detlefs , N. Bernhoeft , P. Santini , G. H. Lander

The hyperfine interactions at the uranium site in the antiferromagnetic USb2 compound were calculated within the density functional theory (DFT) employing the augmented plane wave plus local orbital (APW+lo) method. We investigated the…

Materials Science · Physics 2007-05-23 A. Fathi , S. Jalali Asadabadi , M. G. Rad

Using \textit{in situ} polarized neutron reflectometry, the depth resolved evolution of the magnetism and structure in a Pd/Fe/Pd trilayer thin-film is measured during growth. The initial film structure of Pd/Fe shows a small proximity…

Population of levels of the hyperfine and fine split ground state of an atom is affected by radiative transitions induced by anisotropic radiation flux. Such aligned atoms precess in the external magnetic field and this affects properties…

Astrophysics · Physics 2007-05-23 Huirong Yan , A. Lazarian

Magnetic resonant X ray scattering experiments have been performed on a single crystal of EuFe_2As_2 at the Eu L_3 absorption edge. This has permitted us to determine for the first time the orientation of Eu magnetic moments in the…

Actinide and lanthanide-based materials display exotic properties that originate from the presence of itinerant or localized f-electrons and include unconventional superconductivity and magnetism, hidden order; and heavy fermion behavior.…

Materials Science · Physics 2021-02-26 Ayana Ghosh , Filip Ronning , Serge Nakhmanson , Jian-Xin Zhu

We claim the existence of the f3 (U3+) configuration in UPd2Al3. It is in agreement with inelastic-neutron-scattering (INS) excitations and is consistent with the trivalent neptunium configuration in NpPd2Al3. We have derived set of CEF…

Strongly Correlated Electrons · Physics 2015-06-24 R. J. Radwanski , Z. Ropka

We present resonant x-ray emission spectroscopic (RXES) data from the uranium intermetallics UPd$_3$, USb, USn$_3$ and URu$_2$Si$_2$, at the U $M_{4,5}$ edges and compare the data to those from the well-localized $5f^2$ semiconductor…

Strongly Correlated Electrons · Physics 2017-06-12 K. O. Kvashnina , H. C. Walker , N. Magnani , G. H. Lander , R. Caciuffo