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Elastic and inelastic neutron scattering experiments have been performed in a La$_{0.94}$Sr$_{0.06}$MnO$_3$ untwinned crystal, which exhibits an antiferromagnetic canted magnetic structure with ferromagnetic layers. The elastic small q…

Strongly Correlated Electrons · Physics 2009-10-31 M. Hennion , F. Moussa , J. Rodriguez-Carvajal , L. Pinsard , A. Revcolevschi

We examined the magnetic properties of YbBe13, which exhibits an antiferromagnetic order below TN = 1.2 K. Unlike other MBe13 compounds (M = rare earth/actinide elements), based on elastic neutron scattering, we observed an incommensurate…

Strongly Correlated Electrons · Physics 2024-06-25 Yusei Shimizu , Yoichi Ikeda , Toshiro Sakakibara , Yoshiya Homma , Dai Aoki

Our experimental (neutron diffraction, M\"ossbauer spectroscopy, magnetic susceptibility, specific heat) and numerical studies on the evolution of short- and long-range magnetic order in $\gamma_{\rm II}$-Li\(_2\)FeSiO\(_4\) suggest a…

Strongly Correlated Electrons · Physics 2025-01-20 W. Hergett , N. Bouldi , M. Jonak , C. Neef , C. Ritter , M. Abdel-Hafiez , F. Seewald , H. -H. Klauss , M. W. -Haverkort , R. Klingeler

The nature of the unconventional ordered phase occurring in CeRu2Al10 below T0 = 27 K was investigated by neutron scattering. Powder diffraction patterns show clear superstructure peaks corresponding to forbidden (h + k)-odd reflections of…

We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation vector, $\tau_{\rm{AFM}}$ = ($\frac{1}{2} \frac{1}{2} \frac{1}{2}$), and ordered…

Hidden-order phases that occur in a number of correlated f-electron systems are among the most elusive states of electronic matter. Their investigations are hindered by the insensitivity of standard physical probes, such as neutron…

Strongly Correlated Electrons · Physics 2019-06-25 P. Y. Portnichenko , S. E. Nikitin , A. Prokofiev , S. Paschen , J. -M. Mignot , J. Ollivier , A. Podlesnyak , Siqin Meng , Zhilun Lu , D. S. Inosov

The ground-state magnetic structure of EuNi$_{2}$As$_{2}$ was investigated by single-crystal neutron diffraction. At base temperature, the Eu$^{2+}$ moments are found to form an incommensurate antiferromagnetic spiral-like structure with a…

Strongly Correlated Electrons · Physics 2019-01-30 W. T. Jin , N. Qureshi , Z. Bukowski , Y. Xiao , S. Nandi , M. Babij , Z. Fu , Y. Su , Th. Brückel

We have investigated the magnetic microstructure of two-phase Fe-Nb-B~based Nanoperm alloys using unpolarized small-angle neutron scattering (SANS) and small-angle X-ray scattering (SAXS). Our SANS analysis reveals a significantly large…

Materials Science · Physics 2024-05-24 Venus Rai , Ivan Titov , Michael P. Adams , Kiyonori Suzuki , Joachim Kohlbrecher , Andreas Michels

We report inelastic neutron scattering studies of magnetic excitations in antiferromagnetically ordered SrFe$_{2}$As$_{2}$ ($T_{N}=220$ K), the parent compound of the FeAs-based superconductors. At low temperatures (T=7 K), the spectrum of…

SrEr$_2$O$_4$ has been characterised by low-temperature powder neutron diffraction, as well as single crystal specific heat and magnetisation measurements. Magnetisation measurements show that the magnetic system is highly anisotropic at…

Strongly Correlated Electrons · Physics 2008-11-18 O. A. Petrenko , G. Balakrishnan , N. R. Wilson , S. de Brion , E. Suard , L. C. Chapon

A novel doubly chiral magnetic order is found out in the structurally chiral langasite compound Ba$_3$NbFe$_3$Si$_2$O$_{14}$. The magnetic moments are distributed over planar frustrated triangular lattices of triangle units. On each of…

Strongly Correlated Electrons · Physics 2008-12-14 Karol Marty , Virginie Simonet , Eric Ressouche , Rafik Ballou , Pascal Lejay , Pierre Bordet

The ordered tetragonal intermetallic Cr$_2$Al forms the same structure type as Mn$_2$Au, and the latter has been heavily investigated for its potential in antiferromagnetic spintronics due to its degenerate in-plane N\'{e}el vector. We…

Materials Science · Physics 2022-01-20 Chengxi Zhao , Kisung Kang , Joerg C. Neuefeind , Andre Schleife , Daniel P. Shoemaker

We report neutron scattering measurements of single-crystalline YFe$_2$Ge$_2$ in the normal state, which has the same crystal structure to the 122 family of iron pnictide superconductors. YFe$_2$Ge$_2$ does not exhibit long range magnetic…

We report the anisotropic magnetic properties of the ternary compound ErAl$_2$Ge$_2$. Single crystals of this compound were grown by high temperature solution growth technique,using Al:Ge eutectic composition as flux. From the powder x-ray…

Strongly Correlated Electrons · Physics 2020-04-22 Moumita Nandi , A. Thamizhavel , S. K. Dhar

Fe3-xGeTe2 is an itinerant ferromagnet composed of two-dimensional layers weakly connected by van der Waals bonding that shows a variety of intriguing phenomena. Inelastic neutron scattering measurements on bulk single crystals of…

Strongly Correlated Electrons · Physics 2019-03-27 S. Calder , A. I. Kolesnikov , A. F. May

9Be-NMR measurements were performed using single crystalline SmBe13 in order to investigate a magnetic structure of a low-temperature ordering state microscopically. We observed a spectral broadening in the ordered state, and the broadened…

Strongly Correlated Electrons · Physics 2021-09-01 Hiroyuki Hidaka , Yoshihiko Ihara , Tatsuya Yanagisawa , Hiroshi Amitsuka

We use polarized inelastic neutron scattering to study low-energy spin excitations and their spatial anisotropy in electron-overdoped superconducting BaFe$_{1.85}$Ni$_{0.15}$As$_{2}$ ($T_c=14$ K). In the normal state, the imaginary part of…

Superconductivity · Physics 2012-06-26 Mengshu Liu , C. Lester , Jiri Kulda , Xingye Lu , Huiqian Luo , Meng Wang , Stephen M. Hayden , Pengcheng Dai

A series of Sr(Co$_{1-x}$Ni$_x$)$_2$As$_2$ single crystals was synthesized allowing a comprehensive phase diagram with respect to field, temperature, and chemical substitution to be established. Our neutron diffraction experiments revealed…

Inelastic neutron scattering study has been performed in an S=3/2 bilayer honeycomb lattice compound Bi3Mn4O12(NO3) at ambient and high magnetic fields. Relatively broad and monotonically dispersive magnetic excitations were observed at…

Strongly Correlated Electrons · Physics 2020-01-08 M. Matsuda , S. E. Dissanayake , D. L. Abernathy , Y. Qiu , J. R. D. Copley , N. Kumada , M. Azuma

We report the magnetic phase diagram of Mn$_{1-x}$Fe$_{x}$PSe$_3$ which represents a random magnet system of two antiferromagnetic systems with mixed spin, mixed spin anisotropies, mixed nearest neighbor magnetic interactions and mixed…

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