English
Related papers

Related papers: NMR Probing Spin Excitations in the Ring-Like Stru…

200 papers

The site-selective nuclear spin-lattice relaxation rate T1^{-1} is theoretically studied inside a vortex core in a chiral p-wave superconductor within the framework of the quasiclassical theory of superconductivity. It is found that T1^{-1}…

Superconductivity · Physics 2009-11-07 Nobuhiko Hayashi , Yusuke Kato

The canting angles and fluctuation of the magnetic ion spins of spinel oxide MnCr${}_2$O${}_4$ were studied by nuclear magnetic resonance (NMR) at low temperatures, which has a collinear ferrimagnetic order below $T_C$ and a ferrimagnetic…

Strongly Correlated Electrons · Physics 2015-05-19 Dong Young Yoon , Soonchil Lee , Yoon Seok Oh , Kee Hoon Kim

Nuclear electric resonance (NER) is based on nuclear magnetic resonance mediated by spatial oscillations of electron spin domains excited by a radio frequency (RF) electric field, and it allows us to investigate the spatial distribution of…

Mesoscale and Nanoscale Physics · Physics 2012-10-25 S. Watanabe , G. Igarashi , N. Kumada , Y. Hirayama

We present nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements performed on single crystalline \ccag{}, a member of a recently discovered family of heavy fermion materials Ce$_2M$Al$_7$Ge$_4$ ($M$ = Co, Ir,…

Strongly Correlated Electrons · Physics 2018-12-21 A. P. Dioguardi , P. Guzman , P. F. S. Rosa , N. J. Ghimire , S. Eley , S. E. Brown , J. D. Thompson , E. D. Bauer , F. Ronning

We report 73Ge-NMR and NQR results for ferromagnetic (FM) superconductor URhGe. The magnitude and direction of the internal field, H_int, and parameters of the electric field gradient at the Ge site were determined experimentally. Using…

We report results of nuclear magnetic resonance (NMR) experiments in SrCu2(BO3)2, a quasi two-dimensional spin system with a singlet ground state. When magnetic field is applied along the c-axis, each of the quadrupole split Cu resonance…

Strongly Correlated Electrons · Physics 2013-03-05 K. Kodama , J. Yamazaki , M. Takigawa , H. Kageyama , K. Onizuka , Y. Ueda

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

Nuclear magnetic resonance (NMR) is a powerful quantum probe, but the early conclusions on the physics of the cuprates, based on a limited set of data, have to be revised in view of recent findings and results from extensive literature…

Superconductivity · Physics 2022-06-29 Jürgen Haase

The nuclear magnetic resonance (NMR) spectrum of spin-3/2 nuclei in a static magnetic field aligned with one of the electric field gradient (EFG) principal axes is developed analytically, based on fictitious spin-1/2 formalism. Compact…

Superconductivity · Physics 2024-12-17 Jaafar N. Ansari , Karen L. Sauer

We report an electronic magnetization measurement of a quantum point contact (QPC) based on nuclear magnetic resonance (NMR) spectroscopy. We find that NMR signals can be detected by measuring the QPC conductance under in-plane magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-07-16 Minoru Kawamura , Keiji Ono , Peter Stano , Kimitoshi Kono , Tomosuke Aono

We report on the spin dynamics of 13C isotope enriched inner-walls in double-wall carbon nanotubes (DWCNT) using 13C nuclear magnetic resonance (NMR). Contrary to expectations, we find that our data set implies that the spin-lattice…

Strongly Correlated Electrons · Physics 2009-11-11 P. M. Singer , P. Wzietek , H. Alloul , F. Simon , H. Kuzmany

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

A nuclear magnetic resonance (NMR) study is reported of multiple (30) Al$_{0.13}$Ga$_{0.87}$As quantum well (QW) sample near the Landau level filling factor $\nu =1$. In these Al$_{0.13}$Ga$_{0.87}$As QWs the effective $g$ factor is nearly…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 V. F. Mitrović , M. Horvatić , C. Berthier , S. A. Lyon , M. Shayegan

Pressure-induced superconductivity was studied for a spin-ladder cuprate Sr$_2$Ca$_{12}$Cu$_{24}$O$_{41}$ using nuclear magnetic resonance (NMR) under pressures up to the optimal pressure 3.8 GPa. Pressure application leads to a…

Superconductivity · Physics 2009-09-12 N. Fujiwara , Y. Fujimaki , S. Uchida , K. Matsubayashi , T. Matsumoto , Y. Uwatoko

The frequency splitting between the dip and the peak of the resistively detected nuclear magnetic resonance (RDNMR) dispersive line shape (DLS) has been measured in the quantum Hall effect regime as a function of filling factor, carrier…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 W. Desrat , B. A. Piot , S. Krämer , D. K. Maude , Z. R. Wasilewski , M. Henini , R. Airey

We present a methodology for probing the details of electronic susceptibility through minimally-invasive nuclear magnetic resonance techniques. Specifically, we classify electron-mediated long-range interactions in an ensemble of nuclear…

Strongly Correlated Electrons · Physics 2022-08-17 Stephen Carr , Charles Snider , D. E. Feldman , Chandrasekhar Ramanathan , J. B. Marston , V. F. Mitrović

Nuclear spin-lattice relaxation times are measured on copper using magnetic resonance force microscopy performed at temperatures down to 42 mK. The low temperature is verified by comparison with the Korringa relation. Measuring spin-lattice…

The resistivity change due to electron spin resonance (ESR) absorption is investigated in a high-mobility two-dimensional electron system formed in a Si/SiGe heterostructure. Results for a specific Landau level configuration demonstrate…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Junya Matsunami , Mitsuaki Ooya , Tohru Okamoto

Resistively detected nuclear magnetic resonance is used to measure the Knight shift of the As nuclei and determine the electron spin polarization of the fractional quantum Hall states of the second Landau level. We show that the 5/2 state…

Strongly Correlated Electrons · Physics 2015-06-03 M. Stern , B. A. Piot , Y. Vardi , V. Umansky , P. Plochocka , D. K. Maude , I. Bar-Joseph

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