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We report systematic 31P-NMR study on iron (Fe)-based superconductors SrFe2(As_{1-x}P_{x})2 (Sr122AsP), in which a superconducting (SC) transition temperature Tc at x=0.35 increases from Tc=26 K up to 33 K by annealing an as-grown…

Superconductivity · Physics 2016-10-31 M. Miyamoto , H. Mukuda , T. Kobayashi , M. Yashima , Y. Kitaoka , S. Miyasaka , S. Tajima

75As NMR experiments were performed in Ba(Fe1-xRux)2As2 for x=0 to 80%. Magnetic fractions and NMR lineshapes demonstrate that Ru substitution destroys the antiferromagnetic (AF) order inhomogeneously with a magnetic moment distributed from…

Strongly Correlated Electrons · Physics 2015-06-04 Yannis Laplace , Julien Bobroff , Veronique Brouet , Gaston Collin , Florence Rullier-Albenque , Dorothee Colson , Anne Forget

High-pressure magnetization, structural and 57Fe M\"ossbauer studies were performed on superconducting Rb0.8Fe1.6Se2.0 with Tc = 32.4 K. The superconducting transition temperature gradually decreases on increasing pressure up to 5.0 GPa…

We have performed the powder neutron diffraction measurements on the solid solutions of SrRu_{1-x}Mn_xO_3, and found that the itinerant ferromagnetic order observed in pure SrRuO_3 changes into the C-type antiferromagnetic (AF) order with…

Strongly Correlated Electrons · Physics 2007-05-23 M. Yokoyama , C. Satoh , A. Saitou , H. Kawanaka , H. Bando , K. Ohoyama , Y. Nishihara

Neutron diffraction measurements on multiferroic LuFe2O4 show changes in the antiferromagnetic (AFM) structure characterized by wavevector q = (1/3 1/3 1/2) as a function of electric field cooling procedures. The increase of intensity from…

Strongly Correlated Electrons · Physics 2011-11-09 A. M. Mulders , M. Bartkowiak , J. R. Hester , E. Pomjakushina , K. Conder

We report La-139 Nuclear Magnetic Resonance (NMR) data in La4Ni3O8 which reveals the presence of antiferromagnetic order below T_N ~ 105 K. This compound contains two-dimensional layers of NiO2 that are isostructural to the copper oxide…

Strongly Correlated Electrons · Physics 2010-05-05 N. ApRoberts-Warren , A. Dioguardi , V. V. Poltavets , M. Greenblatt , N. J. Curro

The ground state of La_{1-x}Ca_{x}MnO_{3} changes from a ferromagnetic metallic to an antiferromagnetic charge-ordered state as a function of Ca concentration at x ~ 0.50. We present evidence from transport measurements on a sample with x =…

Condensed Matter · Physics 2009-10-31 M. Roy , J. F. Mitchell , P. Schiffer

In the manganite Nd0.5Ca0.5MnO3, charge ordering occurs at much higher temperature than the antiferromagnetic order (TCO=250K,TN=160K). The magnetic behavior of the phase TN<T<TCO is puzzling: its magnetization and susceptibility are…

Strongly Correlated Electrons · Physics 2016-08-31 F. millange , S. de Brion , G. Chouteau

We present the results of a ^{1}H NMR study of the single-component molecular conductor, [Au(tmdt)_{2}]. A steep increase in the NMR line width and a peak formation of the nuclear spin-lattice relaxation rate, 1/T_{1}, were observed at…

Strongly Correlated Electrons · Physics 2009-11-13 Y. Hara , K. Miyagawa , K. Kanoda , M. Shimamura , A. Kobayashi , H. Kobayashi

The magnetic properties and transition from an antiferromagnetic (AFM) to a ferromagnetic (FM) state in semi Heusler alloys Cu1-xNixMnSb, with x < 0.3 have been investigated in details by dc magnetization, neutron diffraction, and neutron…

Materials Science · Physics 2012-06-12 Madhumita Halder , S. M. Yusuf , Amit Kumar , A. K. Nigam , L. Keller

Spatial inversion symmetry in crystal structures is closely related to the superconducting (SC) and magnetic properties of materials. Recently, several theoretical proposals that predict various interesting phenomena caused by the breaking…

We report a study of the Ca$_{0.73}$La$_{0.27}$FeAs$_2$ single crystals. We unravel a monoclinic to triclinic phase transition at 58 K, and a paramagnetic to stripe antiferromagnetic (AFM) phase transition at 54 K, below which spins order…

The low-temperature antiferromagnetic state of the Sm-ions in both nonsuperconducting SmFeAsO and superconducting SmFeAsO$_{0.9}$F$_{0.1}$ single crystals was studied by magnetic torque, magnetization, and magnetoresistance measurements in…

We present the magnetic behavior and resulting transport properties of TaSe$_2$ when intercalated by magnetically active cobalt cations. Acting as the layered host, TaSe$_2$ is a transition metal dichalcogenide (TMD) that adopts the…

The physical properties of itinerant antiferromagnetic (AFM) SrCr$_2$As$_2$ with body-centered tetragonal ThCr$_2$Si$_2$ structure were investigated in single crystalline and polycrystalline forms by electrical resistivity $\rho$, heat…

Strongly Correlated Electrons · Physics 2022-04-20 Q. -P. Ding , Santanu Pakhira , N. S. Sangeetha , E. H. Krenkel , E. I. Timmons , M. A. Tanatar , R. Prozorov , D. C. Johnston , Y. Furukawa

We performed $^{31}$P-NMR measurements on LaFe(As$_{1-x}$P$_{x}$)O to investigate the relationship between antiferromagnetism and superconductivity. The antiferromagnetic (AFM) ordering temperature $T_{\rm N}$ and the moment $\mu_{\rm ord}$…

Superconductivity · Physics 2014-02-03 Shunsaku Kitagawa , Tetsuya Iye , Yusuke Nakai , Kenji Ishida , Cao Wang , Guang-Han Cao , Zhu-an Xu

We report a study on the interplay between antiferromagnetism (AFM) and superconductivity (SC) in a heavy-fermion compound CeRhIn$_5$ under pressure $P=1.75$ GPa. The onset of the magnetic order is evidenced from a clear split of…

Strongly Correlated Electrons · Physics 2009-11-07 T. Mito , S. Kawasaki , Y. Kawasaki , G. -q. Zheng , Y. Kitaoka , D. Aoki , Y. Haga , Y. Ōnuki

The multiferroic ferroborate GdFe$_3$(BO$_3$)$_4$ with huntite-type structure exhibits magnetic ordering below T$_N$ = 38 K and contains two magnetic subsystems associated with Gd and Fe ions. Competing anisotropies of these subsystems…

Strongly Correlated Electrons · Physics 2025-12-16 I. N. Khoroshiy , S. A. Skorobogatov , S. E. Nikitin , I. A. Gudim , V. R. Titova , A. I. Pankrats

Neutron diffraction and nuclear quadrupole resonance (NQR) measurements were employed to investigate magnetic order in the non-ferroelectric phase preceding the low-temperature multiferroic state in FeTe2O5Br. Refnement of the neutron…

Strongly Correlated Electrons · Physics 2013-04-10 M. Pregelj , P. Jeglič , A. Zorko , O. Zaharko , T. Apih , A. Gradišek , M. Komelj , H. Berger , D. Arčon

(NH$_4$)$_2$[FeCl$_5$(H$_2$O)], a member of the family of antiferromagnetic $A_2$[Fe$X_5$(H$_2$O)] compounds ($X$ = halide ion, $A$ = alkali metal or ammonium ion) is classified as a new multiferroic material. We report the onset of…

Strongly Correlated Electrons · Physics 2015-06-16 M. Ackermann , D. Brüning , T. Lorenz , P. Becker , L. Bohatý
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