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Related papers: NMR Study of MnSi under Pressure

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Nuclear magnetic resonance (NMR) technique benefits from high magnetic field not only due to the field-enhanced measurement sensitivity and resolution, but also because it is a powerful tool to investigate field-induced physics in modern…

Instrumentation and Detectors · Physics 2023-05-05 Wenqi Wei , Qinying Liu , Le Yuan , Jian Zhang , Shiyu Liu , Rui Zhou , Yongkang Luo , Xiaotao Han

We present nuclear magnetic resonance (NMR) measurements on the three distinct In sites of CeCoIn$_5$ with magnetic field applied in the [100] direction. We identify the microscopic nature of the long range magnetic order (LRO) stabilized…

Strongly Correlated Electrons · Physics 2015-05-14 G. Koutroulakis , M. D. Stewart, , V. F. Mitrović , M. Horvatić , C. Berthier , G. Lapertot , J. Flouquet

When probing nuclear spins in materials on the nanometer scale, random fluctuations of the spin polarization will exceed the mean Boltzmann polarization for sample volumes below about (100nm)^3. In this work, we use magnetic resonance force…

Mesoscale and Nanoscale Physics · Physics 2008-01-14 C. L. Degen , M. Poggio , H. J. Mamin , D. Rugar

$^{31}$P nuclear magnetic resonance (NMR) measurements have been carried out to investigate the magnetic properties and spin dynamics of Fe$^{3+}$ ($S$ = 5/2) spins in the two-dimensional triangular lattice (TL) compound…

Strongly Correlated Electrons · Physics 2022-11-23 Devi V. Ambika , Qing-Ping Ding , Sebin J. Sebastian , Ramesh Nath , Yuji Furukawa

The newly discovered iron-based superconductors have triggered renewed enormous research interest in the condensed matter physics community. Nuclear magnetic resonance (NMR) is a low-energy local probe for studying strongly correlated…

Superconductivity · Physics 2015-06-16 Long Ma , Weiqiang Yu

Nuclear magnetic resonance (NMR) measurements of an iron (Fe)-based superconductor LaFeAsO_{1-x}F_x (x = 0.08 and 0.14) were performed at ambient pressure and under pressure. The relaxation rate 1/T_1 for the overdoped samples (x = 0.14)…

Superconductivity · Physics 2010-03-25 T. Nakano , N. Fujiwara , K. Tatsumi , H. Okada , H. Takahashi , Y. Kamihara , M. Hirano , H. Hosono

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

We present the results of $^{75}$As nuclear magnetic resonance (NMR), nuclear quadrupole resonance (NQR), and resistivity measurements in KFe$_2$As$_2$ under pressure ($p$). The temperature dependence of the NMR shift, nuclear spin-lattice…

Superconductivity · Physics 2018-05-10 P. Wiecki , V. Taufour , D. Y. Chung , M. G. Kanatzidis , S. L. Bud'ko , P. C. Canfield , Y. Furukawa

We report on spin Hall magnetoresistance (SMR) measurements of Pt Hall bars on the antiferromagnetic NiO(111) single crystal. An SMR with a sign opposite of conventional SMR is observed over a wide range of temperatures as well as magnetic…

Mesoscale and Nanoscale Physics · Physics 2017-08-08 Geert R. Hoogeboom , Aisha Aqeel , Timo Kuschel , Thomas T. M. Palstra , Bart J. van Wees

Magnetization curves of MnSi single crystals have been measured in a range of temperatures $T = 5.5 - 35$ K and magnetic field strengths $H \leq 11$ kOe for $H \parallel$ [111], [001], and [110]. Special attention has been paid to the…

Strongly Correlated Electrons · Physics 2014-11-25 V. N. Narozhnyi , V. N. Krasnorussky

The effect of hydrostatic pressure on the incommensurate antiferromagnetic structure of CeRhIn5 is investigated with neutron diffraction using a He pressure cell. At 3.8 kbar, the staggered magnetic moment is 0.37(4) Bohr magneton per Ce at…

Strongly Correlated Electrons · Physics 2007-05-23 Wei Bao , S. F. Trevino , J. W. Lynn , P. G. Pagliuso , J. L. Sarrao , J. D. Thompson , Z. Fisk

We report a detailed study of the ground state helical magnetic structure in monophosphide FeP by means of ${}^{31}$P NMR spectroscopy. We show that the zero-field NMR spectrum of the polycrystalline sample provides strong evidence of an…

Measurements of the $^{1}$H-NMR spectrum of a small ($\sim$ 4 $\mu$g) single crystal of the organic conductor $\lambda$-(BETS)$_{2}$FeCl$_{4}$ are reported with an applied magnetic field $\bf{B}$$_{0}$ = 9 T parallel to the a-axis in the…

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

The ability to control the magnetic state provides a powerful means to tune the underlying band topology, enabling transitions between distinct electronic phases and the emergence of novel quantum phenomena. In this work, we address the…

Dynamic nuclear polarization (DNP) enhanced nuclear magnetic resonance (NMR) offers a promising route to studying local atomic environments at the surface of both crystalline and amorphous materials. We take advantage of unpaired electrons…

We study a classical ferromagnetic Heisenberg model in the presence of Dzyaloshinskii-Moriya interactions on the corner-shared triangle lattice formed by the Mn sites of MnSi. We show that a sizable spin helicity can be obtained only when…

Strongly Correlated Electrons · Physics 2009-11-13 John M. Hopkinson , Hae-Young Kee

The electrical resistivity of a single crystal of MnSi was measured across its ferromagnetic phase transition line at ambient and high pressures. Sharp peaks of the temperature coefficient of resistivity characterize the transition line.…

Strongly Correlated Electrons · Physics 2009-11-11 Alla E. Petrova , Eric Bauer , V. Krasnorussky , Sergei M. Stishov

We report magnetic susceptibility, specific heat and muon spin relaxation (muSR) experiments on the triangular antiferromagnet La2Ca2MnO7 which develops a genuine two-dimensional, three-sublattice \sqrt{3} \times \sqrt{3} magnetic order…

Strongly Correlated Electrons · Physics 2015-07-08 P. Dalmas de Réotier , C. Marin , A. Yaouanc , T. Douce , A. Sikora , A. Amato , C. Baines

Under pressure, the itinerant helimagnet MnSi displays unusual magnetic properties. We have previously discussed a BCC helical spin crystal as a promising starting point for describing the high pressure phenomenology. This state has…

Strongly Correlated Electrons · Physics 2008-03-03 B. Binz , A. Vishwanath

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…

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