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相关论文: EuPdSn2; magnetic structures in view of resonant x…

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The magnetic structure of superconducting Eu(Fe0.82Co0.18)2As2 is unambiguously determined by single-crystal neutron diffraction. A long-range ferromagnetic order of the Eu2+ moments along the c-direction is revealed below the magnetic…

超导电性 · 物理学 2014-05-06 W. T. Jin , S. Nandi , Y. Xiao , Y. Su , O. Zaharko , Z. Guguchia , Z. Bukowski , S. Price , W. H. Jiao , G. H. Cao , Th. Brueckel

A thorough study of EuZn$_2$P$_2$ single crystals, which were grown from Sn flux, was performed using both bulk (heat capacity, ac susceptibility, dc magnetization, electrical resistivitivity, magnetoresistance) and microscopic (M\"ossbauer…

Magnetic structure of tetragonal UAu$_2$Si$_2$ was investigated by single-crystal neutron diffraction experiments. Below $T_{\rm N}$ = 20 K it orders antiferromagnetically with a propagation vector of $k = (2/3, 0, 0)$ and magnetic moments…

Rutile-type RuO2 likely supports a simple antiferromagnetic structure which can be verified by x-ray Bragg diffraction. Three magnetic motifs that do not break translation symmetry are explored in calculations of amplitudes suitable for…

强关联电子 · 物理学 2022-01-12 S. W. Lovesey , D. D. Khalyavin , G. van der Laan

The magnetic structure of the intermetallic compound EuGa$_4$ was investigated using single-crystal neutron diffraction with the time-of-flight (TOF) Laue technique on the new diffractometer SENJU at MLF of J-PARC. In spite of high neutron…

Single crystals of EuPd2Sb2 have been grown from PdSb self-flux. The properties of the single crystals have been investigated by x-ray diffraction, magnetic susceptibility chi, magnetization M, electrical resistivity rho, Hall coefficient…

超导电性 · 物理学 2010-11-17 S. Das , K. McFadden , Yogesh Singh , R. Nath , A. Ellern , D. C. Johnston

The magnetic structure of RuO2 and the Ru atomic configuration are unknown. A magnetic structure is inferred by confronting measured and calculated Bragg diffraction patterns and adjusting the latter to achieve satisfactory agreement. An…

强关联电子 · 物理学 2023-06-22 S. W. Lovesey , D. D. Khalyavin , G. van der Laan

Properties of two ThCr2Si2-type materials are discussed within the context of their established structural and magnetic symmetries. Both materials develop collinear, G-type antiferromagnetic order above room temperature, and magnetic ions…

强关联电子 · 物理学 2017-11-07 S W Lovesey , D D Khalyavin

Magnetic axial and polar (Dirac) nickel multipoles contribute to resonant x-ray Bragg amplitudes in a symmetry informed analysis of monoclinic Li2Ni3P4O14 presented for future diffraction experiments. Magnetic long-range order below a…

强关联电子 · 物理学 2025-08-08 Stephen W. Lovesey

The crystal structure and physical properties of the layered material EuMnBi2 have been characterized by measurements on single crystals. EuMnBi2 is isostructural with the Dirac material SrMnBi2 based on single crystal x-ray diffraction,…

强关联电子 · 物理学 2015-06-22 Andrew F. May , Michael A. McGuire , Brian C. Sales

A theoretical investigation of a plausible construct for electronic structure in iridate perovskites demonstrates the existence of magnetic multipoles hitherto not identified. The strange multipoles, which are parity-even, time-odd and even…

强关联电子 · 物理学 2014-05-15 S W Lovesey , D D Khalyavin

We present here a neutron diffraction study, both in zero field and as a function of magnetic field, of the magnetic structure of the tetragonal intermetallic \eun\ on a single crystalline sample. This material is known to undergo a cascade…

强关联电子 · 物理学 2016-06-29 X. Fabreges , A. Gukasov , P. Bonville , A. Maurya , A. Thamizhavel , S. K. Dhar

We carried out detailed studies of the magnetic structure, magnetoelastic coupling, and thermal properties of EuCrO$_3$ nano-powders from room temperature to liquid helium temperature. Our neutron powder diffraction and X-ray powder…

强关联电子 · 物理学 2016-04-07 M. Taheri , F. S. Razavi , Z. Yamani , R. Flacau , P. G. Reuvekamp , A. Schulz , R. K. Kremer

Colossal magnetoresistance (CMR) has been observed across many Eu$^{2+}$-based materials; however, its origin is not completely understood. Here we investigate the antiferromagnetic insulator EuZn$_2$P$_2$ through single crystal x-ray…

Structural and magnetic transitions in a double perovskite hosting 5d1 Re ions are discussed on the basis of recently published high-resolution x-ray diffraction patterns [D. Hirai, et al., Phys. Rev. Res. 2, 022063(R) (2020)]. A reported…

强关联电子 · 物理学 2021-06-30 S. W. Lovesey , D. D. Khalyavin

Experimental techniques using Bragg diffraction may elucidate electronic and magnetic properties of ferric ions in multiferroic ScFeO3 that are puzzling. A collinear magnetic motif of dipole moments is not expected for s-state ions with an…

强关联电子 · 物理学 2017-01-18 S W Lovesey , D D Khalyavin

The Bragg diffraction of neutrons and x-rays are well-suited to the task of determining the distribution of magnetization in crystals. Applications of the two techniques proceed by contrasting observed intensities with intensities…

强关联电子 · 物理学 2022-12-21 Stephen W. Lovesey

Results of muon spin relaxation ($\mu$SR) and neutron powder diffraction measurements on a reentrant superconductor Eu(Fe$_{0.86}$Ir$_{0.14}$)$_2$As$_2$ are presented. Eu(Fe$_{0.86}$Ir$_{0.14}$)$_2$As$_2$ exhibits superconductivity at…

We submit that the magnetic space-group Cac (#9.41) is consistent with the established magnetic structure of BaFe2Se3, with magnetic dipole moments in a motif that uses two ladders [Caron J M et al 2011 Phys. Rev. B 84 180409(R)]. The…

强关联电子 · 物理学 2014-12-09 S W Lovesey , D D Khalyavin

We report the single crystal growth and characterization of EuIn$_2$, a magnetic topological semimetal candidate according to our density functional theory (DFT) calculations. We present results from electrical resistance, magnetization,…

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