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We report the resistivity, magnetization and 19^F NMR results in polycrystalline sample of SmFeAsO_(0.86)F_(0.14). The resistivity and the magnetization data show a sharp drop at 48 K indicating the superconducting transition. The nuclear…

Superconductivity · Physics 2012-11-20 M. Majumder , K. Ghoshray , C. Mazumdar , A. Poddar , A. Ghoshray , D. Berardan , N. Dragoe

The macroscopic magnetizations of a RuSr2(Eu0.7Ce0.3)2Cu2O10+d sample were investigated. A ferromagnet-like transition occurs around T_M in the low-field magnetization. Highly nonlinear M(H), non-Curie-Weiss susceptibility, and slow…

Superconductivity · Physics 2009-11-07 Y. Y. Xue , B. Lorenz , D. H. Cao , C. W. Chu

We performed nuclear magnetic resonance studies on a kagome antiferromagnet YCu$_3$(OH)$_6$Br$_2$[Br$_{1-x}$(OH)$_{x}$]. No significant NMR spectral broadening is found in the Br center peak from 1 K down to 0.05 K, indicating absence of…

Strongly Correlated Electrons · Physics 2024-03-14 Shuo Li , Yi Cui , Zhenyuan Zeng , Yue Wang , Ze Hu , Jie Liu , Cong Li , Xiaoyu Xu , Ying Chen , Zhengxin Liu , Shiliang Li , Weiqiang Yu

Complex magneto structural behaviour of rare rich intermetallic Tb$_3$Co is reported in this study. Below the 84K (T$_N$), it undergoes a first order magnetic transition 72K confirmed from specific heat and magnetization measurements.…

Materials Science · Physics 2019-08-23 Srikanta Goswami , P. D. Babu , R. Rawat

Muon spin rotation and relaxation measurements have been carried out on the unconventional antiferromagnet Yb_3Pt_4. Oscillations are observed below T_N = 2.22(1) K, consistent with the antiferromagnetic (AFM) Neel temperature observed in…

Strongly Correlated Electrons · Physics 2015-05-19 S. Zhao , D. E. MacLaughlin , O. O. Bernal , J. M. Mackie , C. Marques , Y. Janssen , M. C. Aronson

Single crystals of SrMn2P2 and CaMn2P2 were grown using Sn flux and characterized by single-crystal x-ray diffraction, electrical resistivity rho, heat capacity Cp, and magnetic susceptibility chi = M/H measurements versus temperature T and…

Strongly Correlated Electrons · Physics 2021-11-01 N. S. Sangeetha , Santanu Pakhira , Q. -P. Ding , H. -C. Lee , V. Smetana , A. -V. Mudring , Y. Furukawa , D. C. Johnston

We report the results of a $^{45}$Sc nuclear magnetic resonance (NMR) study on the quasi-one-dimensional compound Cu$_2$Sc$_2$Ge$_4$O$_{13}$ at temperatures between 4 and 300 K. This material has been a subject of current interest due to…

Strongly Correlated Electrons · Physics 2009-11-11 C. S. Lue , C. N. Kuo , T. H. Su , G. J. Redhammer

We report the $^{11}$B nuclear magnetic resonance (NMR) measurements on non-centrosymmetric superconductors NbRh$_2$B$_2$ (superconducting transition temperature $T_c$ = 7.8 K) and TaRh$_2$B$_2$ ($T_c$ = 5.9 K) with a chiral crystal…

Superconductivity · Physics 2021-12-22 Kazuaki Matano , Ryo Ogura , Mateo Fountainea , Harald O. Jeschke , Shinji Kawasaki , Guo-qing Zheng

High-frequency ESR results on the S=1/2 Heisenberg hexagonal antiferromagnet InCu2/3V1/3O3 are reported. This compound appears to be a rare model substance for the honeycomb lattice antiferromagnet with very weak interlayer couplings. The…

Strongly Correlated Electrons · Physics 2015-03-17 Susumu Okubo , Hideo Wada , Hitoshi Ohta , Takahiro Tomita , Masashi Fujisawa , Takahiro Sakurai , Eiji Ohmichi , Hikomitsu Kikuchi

We have systematically studied the antiferromagnetic and nematic transitions in Sr$_{1-x}$Ba$_x$Fe$_{1.97}$Ni$_{0.03}$As$_2$ by magnetic susceptibility and uniaxial-pressure resistivity measurements, respectively. The derivatives of the…

Superconductivity · Physics 2017-10-12 Dongliang Gong , Zhaoyu Liu , Yanhong Gu , Tao Xie , Xiaoyan Ma , Huiqian Luo , Yi-feng Yang , Shiliang Li

We present the results of muon-spin relaxation measurements on the triangular lattice Heisenberg antiferromagnet $\alpha$-KCrO$_{2}$. We observe sharp changes in behaviour at an ordering temperature of $T_{\mathrm{c}}=23$ K, with an…

Strongly Correlated Electrons · Physics 2014-06-12 F. Xiao , T. Lancaster , P. J. Baker , F. L. Pratt , S. J. Blundell , J. S. Möller , N. Z. Ali , M. Jansen

Nuclear magnetic resonance (NMR) experiments on single crystals of HgBa$_{2}$CuO$_{4+\delta}$ are presented that identify two distinct temperature-dependent spin susceptibilities: one is due to a spin component that is temperature-dependent…

$^{59}$Co and $^{31}$P nuclear magnetic resonance (NMR) measurements in external magnetic and zero magnetic fields have been performed to investigate the magnetic properties of the A-type antiferromagnetic (AFM) CaCo$_2$P$_2$. NMR data,…

Strongly Correlated Electrons · Physics 2018-12-26 N. Higa , Q. -P. Ding , A. Teruya , M. Yogi , M. Hedo , T. Nakama , Y. Ōnuki , Y. Furukawa

We report on the results of 23Na NMR in the honeycomb lattice magnet Na2Co2TeO6 which has been nominated as a Kitaev material. Measurements of magnetic shift and width of the NMR line as functions of temperature and magnetic field show that…

Strongly Correlated Electrons · Physics 2022-12-21 Jun Kikuchi , Takayuki Kamoda , Nobuyoshi Mera , Yodai Takahashi , Kouji Okumura , Yukio Yasui

NMR spectra and nuclear spin-lattice relaxation rate $T_1^{-1}$ of $^{11}$B have been measured in superconducting polycrystalline MgB$_{2}$ with $T_C^{ons}\cong 39.5K$. It is shown that $(T_{1}T)^{-1}$ and the Knight shift $K_{s}$ are…

Superconductivity · Physics 2007-05-23 A. Gerashenko , K. Mikhalev , S. Verkhovskii , T. D'yachkova , A. Tyutyunnik , V. Zubkov

The antiferromagnetic ordering in the solid-solution of the two spin-gap systems (CH3)2CHNH3CuCl3 and (CH3)2CHNH3CuBr3 has been investigated by 1H-NMR. The sample with the Cl-content ratio x=0.85 showed a clear splitting in spectra below…

Strongly Correlated Electrons · Physics 2009-11-13 Keishi Kanada , Takehiro Saito , Akira Oosawa , Takayuki Goto , Takao Suzuki

We present a nuclear magnetic resonance (NMR) and electron spin resonance (ESR) study of rare-earth titanates derived from the spin-1/2 Mott insulator YTiO$_3$. Measurements of single-crystalline samples of (Y,Ca,La)TiO$_3$ in a wide range…

Strongly Correlated Electrons · Physics 2024-05-10 Ana Najev , Sajna Hameed , Alexey Alfonsov , Joseph Joe , Vladislav Kataev , Martin Greven , Miroslav Požek , Damjan Pelc

We studied phase transitions and thermodynamic properties of the field-induced antiferromagnetic nuclear-spin ordered phase in bcc solid 3He by measuring the melting pressure at temperatures down to 0.4 mK in magnetic fields up to 15 T. The…

Strongly Correlated Electrons · Physics 2007-05-23 Hiroshi Fukuyama , K. Yawata , T. Momoi , H. Ikegami , H. Ishimoto

We have performed the $^{125}$Te-nuclear magnetic resonance (NMR) measurement in the field along the $b$ axis on the newly discovered superconductor UTe$_2$, which is a candidate of a spin-triplet superconductor. The nuclear spin-lattice…

The temperature (T) dependence of the muon and $^{63}$Cu nuclear spin-lattice relaxation rates $1/T_1$ in YbCu4.4Au0.6 is reported over nearly four decades. It is shown that for $T\to 0$ $1/T_1$ diverges following the behaviour predicted by…

Strongly Correlated Electrons · Physics 2010-11-01 P. Carretta , R. Pasero , M. Giovannini , C. Baines
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