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A site-selective $^{27}$Al nuclear magnetic resonance (NMR) study is carried out on the Kondo lattice compound CePtAl$_4$Ge$_2$, which crystallizes in a rhombohedral lattice with quasi-two-dimensional Ce layers forming a triangular lattice…

Strongly Correlated Electrons · Physics 2025-12-11 H. Sakai , S. Shin , S. Kambe , Y. Tokunaga , H. Harima , E. Pomjakushina , T. Park

We report detailed 17O, 139La, and 63Cu Nuclear Magnetic Resonance (NMR) and Nuclear Quadrupole Resonance (NQR) measurements in a stripe ordered La1.875Ba0.125CuO4 single crystal and in oriented powder samples of La1.8-xEu0.2SrxCuO4. We…

Superconductivity · Physics 2015-05-19 H. -J. Grafe , N. J. Curro , B. L. Young , A. Vyalikh , J. Vavilova , G. D. Gu , M. Hücker , B. Büchner

The magnetic interactions between the spin of an unpaired electron and the surrounding nuclear spins can be exploited to gain structural information, to reduce nuclear relaxation times as well as to create nuclear hyperpolarization via…

We report on the spin waves and crystal field excitations in single crystal LiFePO$_4$ by inelastic neutron scattering over a wide range of temperatures, below and above the antiferromagnetic transition of this system. In particular, we…

Strongly Correlated Electrons · Physics 2017-03-15 Yuen Yiu , Manh Duc Le , Rasmus Toft-Peterson , Georg Ehlers , Robert McQueeney , David Vaknin

We report $^{195}$Pt nuclear magnetic resonance (NMR) measurements on topological superconductor candidate YPtBi which has the broken inversion symmetry and topological non-trivial band structures due to the strong spin-orbit coupling(SOC).…

Superconductivity · Physics 2023-08-01 Y. Z. Zhou , J. Chen , Z. X. Li , J. Luo , J. Yang , Y. F. Guo , W. H. Wang , R. Zhou , Guo-qing Zheng

Local-susceptibility measurements via the NMR shifts of $^{31}$P and $^{51}$V nuclei in the high-pressure phase of (VO)$_{2}$P$_{2}$O$_{7}$ confirmed the existence of a unique alternating antiferromagnetic chain with a zero-field spin gap…

Strongly Correlated Electrons · Physics 2007-05-23 J. Kikuchi , K. Motoya , T. Saito , M. Azuma , M. Takano

We report the local probe investigation of a frustrated antiferromagnet Pr$_3$BWO$_9$ with the distorted kagome lattice. Absence of magnetic order or spin freezing is indicated by the spectral analysis down to 0.3 K and specific heat…

Strongly Correlated Electrons · Physics 2021-11-02 K. Y. Zeng , F. Y. Song , Z. M. Tian , Qiao Chen , Shun Wang , Bo Liu , Shiliang Li , L. S. Ling , W. Tong , Long Ma , Li Pi

The electron spin resonance (ESR) spectroscopy was employed to investigate the spin dynamics in triangular lattice antiferromagnets CuCr$_{1-x}$Mg$_{x}$O$_2$ with $x =$ 0 and 0.02. All spectra can be well fitted by a single Lorentzian…

Strongly Correlated Electrons · Physics 2012-07-16 Renwen Li , Zhe Qu , Wei Tong , Yuheng Zhang

$^{1}$H-NMR spin-echo measurements of the spin-echo decay $M(2\tau)$ with a decay rate 1/$T_{2}$ and the frequency shift $\Delta\nu/\nu_{0}$ under applied magnetic field $\mathbf{B}$$_{0}$ = 9 T along the a-axis over a temperature range…

Strongly Correlated Electrons · Physics 2009-11-11 Guoqing Wu , P. Ranin , G. Gaidos , W. G. Clark , S. E. Brown , L. Balicas , L. K. Montgomery

SrCo$_2$P$_2$ with a tetragonal structure is known to be a Stoner-enhanced Pauli paramagnetic metal being nearly ferromagnetic. Recently Schmidt et al. [Phys. Rev. B 108, 174415 (2023)] reported that a ferromagnetic ordered state is…

Strongly Correlated Electrons · Physics 2024-07-30 Nao Furukawa , Qing-Ping Ding , Juan Schmidt , Sergey L. Bud'ko , Paul C. Canfield , Yuji Furukawa

Recent nuclear magnetic resonance studies [A. Pustogow {\it et al.}, arXiv:1904.00047] have challenged the prevalent chiral triplet pairing scenario proposed for Sr$_2$RuO$_4$. To provide guidance from microscopic theory as to which other…

Superconductivity · Physics 2019-12-16 A. T. Rømer , D. D. Scherer , I. M. Eremin , P. J. Hirschfeld , B. M. Andersen

Low-energy spin dynamics is investigated by $^{35}$ Cl NMR measurements in a frustrated antiferromagnet Ca$_3$ReO$_5$Cl$_2$. The local spin susceptibility measured with the Knight shift behaves as a one-dimensional Heisenberg…

We report a $^{75}$As nuclear magnetic resonance study in LaFeAsO single crystals, which undergoes nematic and antiferromagnetic transitions at $T_\text{nem}\sim 156$ K and $T_N \sim 138$ K, respectively. Below $T_\text{nem}$, the $^{75}$As…

Strongly Correlated Electrons · Physics 2018-05-30 J. M. Ok , S. -H. Baek , D. V. Efremov , R. Kappenberger , S. Aswartham , J. S. Kim , J. van den Brink , B. Büchner

$^{115}$In Nuclear magnetic resonance data are presented for a series of Ce$_{1-x}$La$_x$CoIn$_5$ crystals with different La dilutions, $x$. Multiple In(1) sites associated with different numbers of nearest-neighbor cerium atoms exhibit…

Strongly Correlated Electrons · Physics 2019-04-10 M. Lawson , B. T. Bush , A. C. Shockley , C. Capan , Z. Fisk , N. J. Curro

We have investigated the spin dynamics in the bilayered perovskite Sr3Ru2O7 as a function of magnetic field and temperature using 17O-NMR. This system sits close to a metamagnetic quantum critical point (MMQCP) for the field perpendicular…

Strongly Correlated Electrons · Physics 2007-05-23 Kentaro Kitagawa , Kenji Ishida , Robin S. Perry , Takashi Tayama , Toshiro Sakakibara , Yoshiteru Maeno

The electronic and magnetic properties of cobalt-based layered oxypnictides, LaCoOX (X = P, As), are investigated. LaCoOP and LaCoOAs show metallic type conduction, and the Fermi edge is observed by hard x-ray photoelectron spectroscopy.…

Strongly Correlated Electrons · Physics 2008-07-23 Hiroshi Yanagi , Ryuto Kawamura , Toshio Kamiya , Yoichi Kamihara , Masahiro Hirano , Tetsuya Nakamura , Hitoshi Osawa , Hideo Hosono

We present a muon spin relaxation study on the Ising pyrochlore Nd$_2$Zr$_2$O$_7$ which develops an "all-in-all-out" magnetic order below 0.4~K. At 20~mK far below the ordering transition temperature, the zero-field muon spin relaxation…

Materials Science · Physics 2016-09-07 J. Xu , C. Balz , C. Baines , H. Luetkens , B. Lake

We report $^{57}$Fe-NMR studies on the oxygen-deficient iron (Fe)-based oxypnictide superconductor LaFeAsO$_{0.7}$ ($T_{c}=$ 28 K) enriched by $^{57}$Fe isotope. In the superconducting state, the spin component of $^{57}$Fe-Knight shift…

Superconductivity · Physics 2012-03-22 N. Terasaki , H. Mukuda , M. Yashima , Y. Kitaoka , K. Miyazawa , P. M. Shirage , H. Kito , H. Eisaki , A. Iyo

The NMR measurements performed on a single orthorhombic crystal of superconducting ferromagnet UCoGe (Y.Ihara et al, Phys. Rev. Lett. v.105, 206403 (2010)) demonstrate strongly anisotropic magnetic properties of this material. The presented…

Strongly Correlated Electrons · Physics 2021-10-04 V. P. Mineev

Spin susceptibility of stabilized \delta phase in the Pu-Ga alloy is studied by measuring {69,71}^Ga NMR spectra and nuclear spin-lattice relaxation rate {69}T_{1}^{-1} in the temperature range 5 - 350 K. The shift ({69}^K) of the…

Strongly Correlated Electrons · Physics 2009-11-10 Yu. Piskunov , K. Mikhalev , A. Gerashenko , A. Pogudin , V. Ogloblichev , S. Verkhovskii , A. Tankeyev , V. Arkhipov , Yu. Zouev , S. Lekomtsev