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Related papers: $^{11}B$ NMR and Relaxation in $MgB_2$ Superconduc…

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^25Mg NMR spectra and nuclear spin-lattice relaxation time, T_1, have been measured in polycrystalline ^25MgB_2 with a superconducting transition temperature T_c = 39.0 K in zero magnetic field. From the first order and second order…

Superconductivity · Physics 2009-11-07 M. Mali , J. Roos , A. Shengelaya , H. Keller , K. Conder

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

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

NMR line shift and nuclear spin-lattice relaxation rate T_1^{-1} of 11B and 25Mg were measured in superconducting MgB_2 (T_c^{ons}=38K) structurally disordered by nuclear reactor neutrons up to the fluence of thermal neutrons $\Phi=1…

Superconductivity · Physics 2009-11-07 A. P. Gerashenko , K. N. Mikhalev , S. V. Verkhovskii , A. E. Karkin , B. N. Goshchitskii

We report the $^{207}$Pb nuclear magnetic resonance (NMR) measurements on polycrystalline sample of PbTaSe$_2$ with noncentrosymmetric crystal structure and topological electronic band. The nuclear spin-lattice relaxation rate $1/T_1$ shows…

Superconductivity · Physics 2018-05-23 S. Maeda , K. Matano , Guo-qing Zheng

We report $^{75}$As nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) studies on the superconductor Rb$_{2}$Cr$_{3}$As$_{3}$ with a quasi one-dimensional crystal structure. Below $T\sim$ 100 K, the spin-lattice…

Superconductivity · Physics 2015-10-07 J. Yang , Z. T. Tang , G. H. Cao , Guo-qing Zheng

Nuclear magnetic resonance (NMR) measurements on the $^{195}$Pt nucleus in an aligned powder of the moderately heavy-fermion material U2PtC2 are consistent with spin-triplet pairing in its superconducting state. Across the superconducting…

Superconductivity · Physics 2015-06-24 A. M. Mounce , H. Yasuoka , G. Koutroulakis , N. Ni , E. D. Bauer , F. Ronning , J. D. Thompson

Thermal motion of the flux lines (FL) gives rise to fluctuating magnetic fields. These dynamic fields couple to the nuclei in the sample and relax the nuclear spins. Based on a model of harmonic fluctuations, we provide a theoretical…

Condensed Matter · Physics 2009-10-22 Lei Xing , Yia-Chung Chang

We report (13)C NMR characterization of the new superconductor MgCNi_3 (He et al., Nature (411), 54 (2001)). We found that both the uniform spin susceptibility and the spin fluctuations show a strong enhancement with decreasing temperature,…

Superconductivity · Physics 2009-11-07 P. M. Singer , T. Imai , T. He , M. A. Hayward , R. J. Cava

Physical properties in the normal and superconducting (SC) state are investigated with $^{125}$Te-nuclear magnetic resonance (NMR) measurements in a quasicrystal $\mathrm{(Ta_{0.95}Cu_{0.05})_{1.6}Te}$, which was a recently discovered…

Superconductivity · Physics 2025-11-07 H. Matsudaira , S. Kitagawa , K. Ishida , Y. Tokumoto , K. Tomiyama , K. Edagawa

We report a $^{11}$B NMR line shape and spin-lattice relaxation rate ($1/(T_1T)$) study of pure and lightly carbon doped MgB$_{2-x}$C$_{x}$ for $x=0$, 0.02, and 0.04, in the vortex state and in magnetic field of 23.5 kOe. We show that while…

Superconductivity · Physics 2015-06-24 M. Karayanni , G. Papavassiliou , M. Pissas , M. Fardis , K. Papagelis , K. Prassides , T. Takenobu , Y. Iwasa

We report a ^{11}B NMR measurement on the recently discovered superconductor Li_2Pd_3B. The nuclear spin lattice relaxation rate 1/T_1 shows a well-defined coherence peak just below T_c (H=1.46 T)=5.7 K, and the spin susceptibility measured…

Superconductivity · Physics 2009-11-11 M. Nishiyama , Y. Inada , Guo-qing Zheng

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

We report the results of {11}B nuclear magnetic resonance (NMR) measurements of SrB_{6} and Ca_{0.995}La_{0.05}B_{6} below room temperature. Although the electrical resistivities of these two materials differ substantially, their {11}B-NMR…

Strongly Correlated Electrons · Physics 2009-10-31 J. L. Gavilano , Sh. Mushkolaj , D. Rau , H. R. Ott , A. Bianchi , D. P. Young , Z. Fisk

We have investigated a gap structure in a newly-discovered superconductor, MgB2 through the measurement of 11B nuclear spin-lattice relaxation rate, ^{11}(1/T_1). ^{11}(1/T_1) is proportional to the temperature (T) in the normal state, and…

Superconductivity · Physics 2009-11-07 H. Kotegawa , K. Ishida , Y. Kitaoka , T. Muranaka , J. Akimitsu

The spin-lattice relaxation rate of nuclear magnetic resonance in a clean superconductor without inversion center is calculated for arbitrary pairing symmetry and band structure, in the presence of strong spin-orbit coupling.

Superconductivity · Physics 2009-11-11 K. V. Samokhin

We report ^77Se-NMR measurements in the recent discovered K_0.8Fe_2Se_2 with the superconducting transition temperature T_c=32 K. The characteristic point of this system is that the high density of state is located in the vicinity of the…

We report nuclear magnetic resonance (NMR) studies of the intercalated iron selenide superconductor (Tl, Rb)$_{y}$Fe$_{2-x}$Se$_2$ ($T_c = 32$ K). Single-crystal measurements up to 480 K on both $^{77}$Se and $^{87}$Rb nuclei show a…

Superconductivity · Physics 2015-05-27 Long Ma , G. F. Ji , J. Dai , J. B. He , D. M. Wang , G. F. Chen , B. Normand , Weiqiang Yu

We discuss the results of $^{75}$As Nuclear Quadrupole Resonance (NQR) and muon spin relaxation measurements in AFe$_2$As$_2$ (A= Cs, Rb) iron-based superconductors. We demonstrate that the crossover detected in the nuclear spin-lattice…

Strongly Correlated Electrons · Physics 2019-07-03 M. Moroni , G. Prando , S. Aswartham , I. Morozov , Z. Bukowski , B. Büchner , H. J. Grafe , P. Carretta

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…

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