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We present the results of muon-spin relaxation ($\mu^{+}$SR) measurements of the van der Waals magnet NiI$_2$, which probe magnetic phase transitions at $T_{\mathrm{N1}}=73$~K and $T_{\mathrm{N2}}=60$~K. Supporting density functional theory…

We report synchrotron radiation diffraction and muon spin rotation (muSR) measurements on the frustrated pyrochlore magnet Tb2Ti2O7. The powder diffraction study of a crushed crystal fragment does not reveal any structural change down to 4…

Strongly Correlated Electrons · Physics 2014-12-22 P. Dalmas de Reotier , A. Yaouanc , A. Bertin , C. Marin , S. Vanishri , D. Sheptyakov , A. Cervellino , B. Roessli , C. Baines

We report on the study of unusual spin glass properties in the geometrically frustrated pyrochlore Tb$_{2}$Mo$_{2}$O$_{7}$, $T$$_{g}$$\simeq$24 K. The analysis of the nonlinear part of dc and complex susceptibilities, near the glass…

Strongly Correlated Electrons · Physics 2013-09-17 D. K. Singh , Y. S. Lee

We report neutron scattering studies of the spin correlations of the geometrically frustrated pyrochlore Tb2Mo2O7 using single crystal samples. This material undergoes a spin-freezing transition below Tg~24 K, similar to Y2Mo2O7, and has…

Strongly Correlated Electrons · Physics 2009-11-13 D. K. Singh , J. S. Helton , S. Chu , T. H. Han , C. J. Bonnoit , S. Chang , H. J. Kang , J. W. Lynn , Y. S. Lee

We present the results of a muon-spin relaxation ($\mu^{+}$SR) investigation of the crystalline organic radical compound 4-(2-benzimidazolyl)-1,2,3,5-dithiadiazolyl (HbimDTDA), in which we demonstrate the hysteretic magnetic switching of…

We report muon spin relaxation (muSR) and magnetic susceptibility investigations of two Ti3+ chain compounds which each exhibit a spin gap at low temperature, NaTiSi2O6 and TiOCl. From these we conclude that the spin gap in NaTiSi2O6 is…

Strongly Correlated Electrons · Physics 2010-07-08 P. J. Baker , S. J. Blundell , F. L. Pratt , T. Lancaster , M. L. Brooks , W. Hayes , M. Isobe , Y. Ueda , M. Hoinkis , M. Sing , M. Klemm , S. Horn , R. Claessen

We investigated magnetization, muon spin rotation ($\mu$SR), and $^{119}Sn$ M\"{o}ssbauer spectroscopy on Sn substituted $CuCr_{2-x}Sn_xS_4$ (x=0.03 and 0.08) spinel compounds. The magnetization and $\mu$SR results reveal similar additional…

By means of neutron scattering techniques we have investigated the frustrated pyrochlore magnet Ho_2Sn_2O_7, which was found to show a ferromagnetic spin-ice behavior below T \simeq 1.4 K by susceptibility measurements. High-resolution…

Disordered Systems and Neural Networks · Physics 2007-05-23 Hiroaki Kadowaki , Yoshinobu Ishii , Kazuyuki Matsuhira , Yukio Hinatsu

A positive muon spin rotation and relaxation ($\mu^+$SR) experiment on [Ca$_2$CoO$_3$]$_{0.62}$[CoO$_2$], ({\sl i.e.}, Ca$_3$Co$_4$O$_9$, a layered thermoelectric cobaltite) indicates the existence of two magnetic transitions at $\sim$ 100…

Strongly Correlated Electrons · Physics 2009-11-10 J. Sugiyama , J. H. Brewer , E. J. Ansaldo , H. Itahara , K. Dohmae , Y. Seno , C. Xia , T. Tani

Transition metal oxides of the $4d$ and $5d$ block have recently become the targets of materials discovery, largely due to their strong spin-orbit coupling that can generate exotic magnetic and electronic states. Here we report the high…

The quasiparticle excitations in the mixed state of Cd2Re2O7 have been studied by means of muon spin rotation/relaxation. The temperature dependence of the magnetic penetration depth (lambda) is consistent with a nearly isotropic…

Superconductivity · Physics 2009-11-07 R. Kadono , W. Higemoto , A. Koda , Y. Kawasaki , M. Hanawa , Z. Hiroi

We report single-crystal 51V NMR studies on volborthite Cu3V2O7(OH)2 2H2O, which is regarded as a quasi-two-dimensional frustrated magnet with competing ferromagnetic and antiferromagnetic interactions. In the 1/3 magnetization plateau…

The low temperature state of CeRu2Al10 has been studied by neutron powder diffraction and muon spin relaxation (muSR). By combining both techniques, we prove that the transition occurring below T*~27K, which has been the subject of…

We have performed muon spin rotation/relaxation (muSR) measurements on single crystals of the chiral helimagnet Cr1/3NbS2 at zero to low magnetic field. The transition from the paramagnetic to helical magnetically ordered phase at zero…

Materials Science · Physics 2015-06-23 D. Braam , C. Gomez , S. Tezok , E. V. L. de Mello , L. Li , D. Mandrus , Hae-Young Kee , J. E. Sonier

By measurements of specific heat, we have investigated the magnetic field ($H$) induced spin-structural change in Nd$_2$Mo$_2$O$_7$ that shows spin-chirality-related magneto-transport phenomena. A broad peak around 2 K caused by the…

Strongly Correlated Electrons · Physics 2009-11-10 Y. Onose , Y. Taguchi , T. Ito , Y. Tokura

We report on 7Li NMR studies of a spin S = 3/2 triangular lattice antiferromagnet LiCrO2 (Neel temperature TN = 62 K) in the paramagnetic state by using the free-induction decay of 7Li nuclear magnetization. We observed critical divergence…

Strongly Correlated Electrons · Physics 2014-08-01 Y. Itoh

We report on the geometrically frustrated two-dimensional triangular-lattice magnets $A_2$La$_2$NiW$_2$O$_{12}$ ($A$ = Sr, Ba) studied mostly by means of neutron powder diffraction (NPD) and muon-spin rotation and relaxation ($\mu$SR)…

Strongly Correlated Electrons · Physics 2023-07-19 B. C. Yu , J. Y. Yang , D. J. Gawryluk , Y. Xu , Q. F. Zhan , T. Shiroka , T. Shang

The magnetic and quadrupolar ordered states of polycrystalline YbRu2Ge2 have been investigated using zero-field muon spin relaxation ({\mu}SR) and neutron diffraction measurements. Specific heat measurements show three successive phase…

Strongly Correlated Electrons · Physics 2015-05-30 H. S. Jeevan , D. T. Adroja , A. D. Hillier , Z. Hossain , C. Ritter , C. Geibel

The fascinating multiple magnetic states observed in the Ni-Mn-Sn based metamagnetic shape memory alloy are addressed through a combined muon spin relaxation (muSR) and neutron powder diffraction studies. The material used in the present…

Strongly Correlated Electrons · Physics 2019-06-12 J. Sannigrahi , S. Pramanick , S. Chatterjee , J. S. Lord , D. Khalyavin , A. D. Hillier , D. T. Adroja , S. Majumdar

Comprehensive muon spin rotation/relaxation (muSR) and neutron powder diffraction (NPD) studies supported via bulk measurements have been performed on the ordered double perovskite Sr2YbRuO6 to investigate the nature of the magnetic ground…

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