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相关论文: Magnetic properties and spin dynamics of 3d-4f mol…

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We present a systematic study of the variations of the ^{7}Li NMR properties versus magnetic defect concentration up to 0.83 mol% within the spinel structure of polycrystalline powder samples and a collection of small single crystals of…

强关联电子 · 物理学 2010-11-12 X. Zong , S. Das , F. Borsa , M. D. Vannette , R. Prozorov , J. Schmalian , D. C. Johnston

NiNb$_{2}$O$_{6}$ is an almost ideal realization of a 1D spin-1 ferromagnetic Heisenberg chain compound with weak unidirectional anisotropy. Using time-domain THz spectroscopy, we measure the low-energy electrodynamic response of…

强关联电子 · 物理学 2020-01-29 Prashant Chauhan , Fahad Mahmood , Hitesh J. Changlani , S. M. Koohpayeh , N. P. Armitage

The magnetic state of the single-component molecular compound, [Cu(tmdt)$_{2}$], is investigated by means of $^{1}$H-NMR. An abrupt spectral broadening below 13 K and a sharp peak in nuclear spin-lattice relaxation rate, $T_{1}^{-1}$, at 13…

强关联电子 · 物理学 2012-05-31 Rina Takagi , Kazuya Miyagawa , Kazushi Kanoda , Biao Zhou , Akiko Kobayashi , Hayao Kobayashi

Two$-$dimensional (2D) triangular lattices antiferromagnets (2D$-$TLA) often manifest intriguing physical and technological properties, due to the strong interplay between lattice geometry and electronic properties. The recently synthesized…

The compound, Nd2PdSi3, belonging to R2PdSi3 family (R = rare-earths) has been known to exhibit exotic behavior due to unusual Nd 4f hybridization. Here, we study the electronic properties of Nd2RhSi3 employing ac and dc magnetization,…

强关联电子 · 物理学 2024-07-23 E V Sampathkumaran , Kartik K Iyer , Sudhindra Rayaprol , Kalobaran Maiti

Despite the recent discovery of superconductivity in Nd$_{1-x}$Sr$_{x}$NiO$_2$ thin films, the absence of superconductivity and antiferromagnetism in their bulk materials remain a puzzle. Here we report the $^{1}$H NMR measurements on…

超导电性 · 物理学 2021-05-31 Yi Cui , C. Li , Q. Li , Xiyu Zhu , Z. Hu , Yi-feng Yang , J. S. Zhang , Rong Yu , Hai-Hu Wen , Weiqiang Yu

We have investigated the quasi-one dimensional Ni-chain compound PbMn$_2$Ni$_6$Te$_2$O$_{18}$ using theoretical DFT calculations, inelastic neutron scattering and optical spectroscopy in order to understand the nature of magnetic exchange…

We re-examine the thermodynamic properties of the coupled dimer system Cu$_2$(C$_5$H$_{12}$N$_2$)$_2$Cl$_4$ under magnetic field in the light of recent NMR experiments [Cl\'emancey {\it et al.}, Phys. Rev. Lett. {\bf 97}, 167204 (2006)]…

强关联电子 · 物理学 2007-05-23 S. Capponi , D. Poilblanc

Electron spin resonance and magnetization data in magnetic fields up to 55 T of a novel multicenter paramagnetic molecular complex [L_2Ni_4(N_3)(O_2C Ada)_4](Cl O_4) are reported. In this compound, four Ni centers each having a spin S = 1…

Magnetic properties of a one-dimensional frustrated quantum spin system Rb2Cu2Mo3O12 is investigated by the muon spin relaxation (muSR) technique. Although this system shows an incommensurate spin correlation in neutron scattering, it has…

Spin relaxation between the two lowest-lying spin-states has been studied in the S=4 single molecule magnet Ni$_4$ under steady state conditions of low amplitude and continuous microwave irradiation. The relaxation rate was determined as a…

介观与纳米尺度物理 · 物理学 2008-07-22 G. de Loubens , D. A. Garanin , C. C. Beedle , D. N. Hendrickson , A. D. Kent

We report combined magnetic susceptibility, dielectric constant, nuclear quadruple resonance (NQR) and zero-field nuclear magnetic resonance (NMR) measurements on single crystals of multiferroics CuBr$_2$. High quality of the sample is…

Four discrete MnIII/MnII tetra-nuclear complexes with double-cuboidal core were synthesized. dc magnetic measurements show that both Mn2+ - Mn3+ and Mn3+ - Mn3+ magnetic interactions are ferromagnetic in three samples leading to an S = 9…

介观与纳米尺度物理 · 物理学 2007-05-23 L. Lecren , O. Roubeau , C. Coulon , Yang-Guang Li , X. Le Goff , W. Wernsdorfer , H. Miyasaka , R. Clerac

We present a comprehensive study of the magnetic properties of Sr$_{3-x}$Y$_{x}$(Fe$_{1.25}$Ni$_{0.75}$)O$_{7-\delta}$ ($0 \leq x \leq 0.75$). Experimentally, the magnetic properties are investigated using superconducting quantum…

We present a joint experimental and theoretical characterization of the magnetic properties of coordination clusters with an antiferromagnetic core of four magnetic ions. Two different compounds are analyzed, with Co and Mn ions in the…

化学物理 · 物理学 2021-09-16 Simona Achilli , Claire Besson , Xu He , Pablo Ordejòn , Carola Meyer , Zeila Zanolli

The molecular conductors [M(tmdt)$_2$] (M=Ni, Pt) consisting of single molecular species are investigated with $^{13}$C NMR and $^1$H NMR. The temperature dependences of $^{13}$C NMR shift and relaxation rate provide microscopic evidences…

We report muon spin relaxation and magnetometry studies of bulk Mn$_{1.4}$Pt$_{0.9}$Pd$_{0.1}$Sn and MnNiGa, two materials which have recently been proposed to host topological magnetic states in thin lamella (antiskyrmions for…

We report magnetic studies on gelatin coated NiO nanoparticles of average size 7 nm. Temperature and time dependence of dc magnetization, wait time dependence of magnetic relaxation (aging), memory effects in the dc magnetization and…

介观与纳米尺度物理 · 物理学 2015-03-19 Vijay Bisht , K. P. Rajeev , Sangam Banerjee

The magnetic properties of a pressure induced noncentrosymmetric heavy-fermion superconductor CeIrGe$_3$ have been investigated by muon spin relaxation ($\mu$SR), powder neutron diffraction (ND) and inelastic neutron scattering (INS)…

强关联电子 · 物理学 2018-05-23 V. K. Anand , A. D. Hillier , D. T. Adroja , D. D. Khalyavin , P. Manuel , G. Andre , S. Rols , M. M. Koza

The effect of improved dielectric properties in the presence of an applied magnetic field is discussed in Pr doped polycrystalline Gd$_{0.55}$Pr$_{0.45}$MnO$_3$ complemented by the structural properties down to 50 K and magnetic properties.…

强关联电子 · 物理学 2023-04-05 Pooja Pant , Harshit Agarwal , Suresh Bharadwaj , Archana Sagdeo , M. A. Shaz