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Magnetic phases for the intermetallic compound NdMn1.4Co0.6Si2 have been investigated at various temperatures by dc magnetization, neutron diffraction and neutron depolarization. Our study shows multiple magnetic phase transitions with…

Strongly Correlated Electrons · Physics 2014-12-24 Madhumita Halder , A. K. Bera , Amit Kumar , L. Keller , S. M. Yusuf

We present neutron diffraction measurements in high magnetic fields (0 to 14.5 T) and at low temperatures (2.5, 2.3, 0.77 and 0.068 K) on single crystals of the tetragonal heavy fermion antiferromagnet Ce2RhIn8. For B//[110] the field…

Strongly Correlated Electrons · Physics 2015-06-24 E. G. Moshopoulou , K. Prokes , E. Garcia-Matres , P. G. Pagliuso , J. L. Sarrao , J. D. Thompson

Magnetism in the orthorhombic metal CaFe$_4$As$_3$ was examined through neutron diffraction for powder and single crystalline samples. Incommensurate (${\bm q}_{\rm m}\approx (0.37-0.39)\times{\bm b}^{\ast}$) and predominantly…

Neutron diffraction measurements of a high quality single crystal of CaFe2As2 are reported. A sharp transition was observed between the high temperature tetragonal and low temperature orthorhombic structures at TS = 172.5K (on cooling) and…

The orthorhombic compound NdFe$_2$Al$_{10}$ has been studied by powder and single-crystal neutron diffraction. Below $T_N$ = 3.9 K, the Nd$^{3+}$ magnetic moments order in a double-$k$ [$\mathbf{k}_1 = (0, \frac{3}{4}, 0)$, $\mathbf{k}_2 =…

Strongly Correlated Electrons · Physics 2014-12-31 J. Robert , F. Damay , K. Saito , A. M. Bataille , F. Porcher , G. André , A. Gukasov , J. -M. Mignot , H. Tanida , M. Sera

Temperature and field-dependent magnetization $M(H,T)$ measurements and neutron scattering study of a single crystal CeSb$_2$ are presented. Several anomalies in the magnetization curves have been confirmed at low magnetic field, i.e., 15.6…

Materials Science · Physics 2020-08-26 B. Liu , L. Wang , I. Radelytskyi , Y. Zhang , M. Meven , H. Deng , F. Zhu , Y. Su , X. Zhu , S. Tan , A. Schneidewind

The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by resistivity and specific heat measurements. Two low-temperature phase transitions have been observed…

Neutron diffraction on a triple-axis spectrometer and a small-angle neutron scattering instrument is used to study the magnetic phase transition in tetragonal Ba$_2$CuGe$_2$O$_7$ at zero magnetic field. In addition to the incommensurate…

Strongly Correlated Electrons · Physics 2017-10-16 S. Mühlbauer , G. Brandl , M. Månsson , M. Garst

It is found that the polycrystalline NdRu2Ge2 undergoes two successive magnetic transitions at Tt=10 K and TN=19 K. Evidence of metamagnetic transition is detected in the magnetization isotherm data in the antiferromagnetic regime.…

Strongly Correlated Electrons · Physics 2015-06-11 Bibekananda Maji , K. G. Suresh , A. K. Nigam

We report about the magnetic properties of antiferromagnetic (AF) MnO nanoparticles (NPs) with different sizes (6-19nm). Using a combination of polarized neutron scattering and magnetometry we were able to resolve previously observed…

Mesoscale and Nanoscale Physics · Physics 2017-04-26 X. Sun , A. Klapper , Y. Su , K. Nemkovski , A. Wildes , H. Bauer , O. Köhler , A. Schilmann , W. Tremel , O. Petracic , Th. Brückel

Neutron diffraction measurements on a high quality single crystal of CeAu2Ge2 reveal two new magnetic structures that coexist with commensurate long range antiferromagnetic order below the Neel temperature T_N ~ 14 K. The new magnetic…

Strongly Correlated Electrons · Physics 2012-09-03 D. K. Singh , A. Thamizhavel , J. W. Lynn , S. K. Dhar , T. Hermann

Results of structural neutron diffraction study, magnetization and ESR measure-ments are presented for insulating Nd0.75Ba0.25MnO3, Tc = 129 K. The crystal structure is refined in the range 4.2-300 K. The compound is found to exhibit the…

Strongly Correlated Electrons · Physics 2009-11-11 V. A. Ryzhov , A. V. Lazuta , O. P. Smirnov , I. A. Kiselev , Yu. P. Chernenkov , S. A. Borisov , I. O. Troaynchuk , D. D. Khalyavin

Investigation of transport and magnetic properties of MnTe at low temperatures sInvestigation of transport and magnetic properties of MnTe at low temperatures showed anomalies like negative coefficient of resistance below 100K and a sharp…

Materials Science · Physics 2009-11-10 J. B. C. Efrem D'Sa , P. A. Bhobe , K. R. Priolkar , A. Das , S. K. Paranjpe , R. B. Prabhu , P. R. Sarode

Neutron powder diffraction studies of the crystal and magnetic structures of the magnetocaloric compound Mn1.1Fe0.9(P0.8Ge0.2) have been carried out as a function of temperature, applied magnetic field, and pressure. The data reveal that…

Materials Science · Physics 2009-11-30 D. M. Liu , Q. Huang , M. Yue , J. W. Lynn , L. J. Liu , Y. Chen , Z. H. Wu , J. X. Zhang

Both DC and AC magnetization measurements were performed on the NdFeAsO0.88F0.12 superconductor to investigate the influence of magnetism on the superconducting properties of this system. The crossover of the ZFC and FC magnetic…

Superconductivity · Physics 2010-04-01 Y. Ding , Y. Sun , X. D. Wang , H. C. Wang , Z. X. Shi , Z. A. Ren , J. Yang , W. Lu

We have performed unpolarized and polarized neutron diffraction experiments on monodisperse 8 nm and 13 nm antiferromagnetic MnO nanoparticles. For the 8 nm sample, the antiferromagnetic transition temperature $T_N$ (114 K) is suppressed…

The influence of antisite disorder occupancies on the magnetic properties of the half-metallic Co$_2$MnSi compound was studied by experimental techniques and first-principles calculations. The neutron diffraction studies show almost…

Materials Science · Physics 2019-10-18 S. J. Ahmed , C. Boyer , M. Niewczas

Neutron diffraction measurements on a single crystal of CeGe1.76 reveal a complex series of magnetic transitions at low temperature. At T_N = 7 K, there is a transition from a paramagnetic state at higher temperature to an incommensurate…

Strongly Correlated Electrons · Physics 2014-11-03 W. T. Jayasekara , W. Tian , H. Hodovanets , P. C. Canfield , S. L. Bud'ko , A. Kreyssig , A. I. Goldman

We have studied the temperature dependence of crystal and magnetic structures of the Jahn-Teller distorted transition metal difluorides CrF$_2$ and CuF$_2$ by neutron powder diffraction in the temperature range 2-280 K. The lattice…

Strongly Correlated Electrons · Physics 2012-07-03 Tapan Chatterji , Thomas C. Hansen

We present temperature dependent magnetic neutron diffraction measurements on Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$ for $x$ = 0.039, 0.022, and 0.021 as-grown single crystals. Our investigations probe the behavior near the magnetic…

Superconductivity · Physics 2015-06-15 D. M. Pajerowski , C. R. Rotundu , J. W. Lynn , R. J. Birgeneau
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