Dynamical Behavior of Spins in the Rare-Earth Kagom\'{e} Pr$_3$Ga$_5$SiO$_{14}$ (2008)
Lumata, L. L., Besara, T., Hoch, M. J. R., Zhou, H. D., Brooks, J. S., ...
We report on the use of $^{69,71}$Ga nuclear magnetic resonance to probe spin dynamics in the rare-earth kagom\'{e} system Pr$_3$Ga$_5$SiO$_{14}$. We find that the spin-lattice relaxation rate...
Lumata, L. L., Brooks, J. S., Kuhns, P. L., Reyes, A. P., Brown, S. E., Cui, H. B., ...
Complementary $^{77}$Se nuclear magnetic resonance (NMR) and electrical transport have been used to correlate the spin density dynamics with the subphases of the field-induced spin density wave...
Kuehne, H., Grossjohann, S., Brenig, W., Litterst, F. J., Reyes, A. P., ...
We present a 13C-NMR study of the magnetic field driven transition to complete polarization of the S=1/2 antiferromagnetic Heisenberg chain system copper pyrazine dinitrate Cu(C4H4N2)(NO3)2 (CuPzN)....
ac susceptibility and $^{51}$V NMR study of MnV$_2$O$_4$ (2007)
Reyes, A. P., Kuhns, P. L., Curro, N. J., Ramanchandran, V., ...
We report $^{51}$V zero-field NMR of manganese vanadate spinel of MnV$_2$O$_4$, together with both ac and dc magnetization measurements. The field and temperature dependence of ac susceptibilities...
Two-dimensional Vortices in Superconductors (2007)
Chen, Bo, Halperin, W. P., Guptasarma, Prasenjit, Hinks, D. G., Mitrovic, V. F., Reyes, A. P., ...
Superconductors have two key characteristics. They expel magnetic field and they conduct electrical current with zero resistance. However, both properties are compromised in high magnetic fields...
$^{133}$Cs NMR investigation of 2D frustrated Heisenberg antiferromagnet, Cs$_2$CuCl$_4$ (2006)
Kundhikanjana, W., Straub, A., Mitrović, V. F., Reyes, A. P., Kuhns, P., ...
We report $^{133}$Cs nuclear magnetic resonance (NMR) measurements on the 2D frustrated Heisenberg antiferromagnet Cs$_2$CuCl$_4$ down to 2 K and up to 15 T. We show that $^{133}$Cs NMR is a good...
Spin Freezing and Melting in Na$_{0.5}$CoO$_{2}$ (2006)
Imai, T., Ning, F. L., Van Dyken, M., Chou, F. C., Reyes, A. P., Kuhns, P. L.
This paper has been withdrawn. The sample was a mixed phase.
Hidden order and disorder effects in URu2Si2 (2006)
Bernal, O. O., Moroz, M. E., Ishida, K., Murakawa, H., Reyes, A. P., Kuhns, P. L., ...
Hidden order and disorder effects in URu2Si2. (2006)
Bernal, O.O., Moroz, M.E., Ishida, K., Murakawa, H., Reyes, A.P., MacLaughlin, P.L., ...
Zheng, Guo-qing, Kuhns, P. L., Reyes, A. P., Liang, B., Lin, C. T.
We apply strong magnetic fields of H=28.5 \sim 43 T to suppress superconductivity (SC) in the cuprates Bi_{2}Sr_{2-x}La_xCuO_{6+\delta} (x=0.65, 0.40, 0.25, 0.15 and 0), and investigate the low...
Evidence for Skyrmion crystallization from NMR relaxation experiments (2004)
Gervais, G., Stormer, H. L., Tsui, D. C., Kuhns, P. L., Moulton, W. G., Reyes, A. P., ...
A resistively detected NMR technique was used to probe the two-dimensional electron gas in a GaAs/AlGaAs quantum well. The spin-lattice relaxation rate $(1/T_{1})$ was extracted at near complete...
Interplay between the magnetic fluctuations and superconductivity in the lanthanum cuprates (2003)
Teitel'baum, G. B., Kataev, V. E., Vavilova, E. L., Kuhns, P. L., Reyes, A. P., Moulton, W. G.
We report the analysis of the magnetic fluctuations in the superconducing La_{2-x}Sr_xCuO_4 and the related lanthanum cuprates having the different symmetry of the low temperature structure. The NMR...
High field magnetic resonant properties of beta'-(ET)2SF5CF2SO3 (2002)
Rutel, I. B., Zvyagin, S. A., Brooks, J. S., Krzystek, J., Kuhns, P., Reyes, A. P., ...
A systematic electron spin resonance (ESR) investigation of the low temperature regime for the (ET)2SF5CF2SO3 system was performed in the frequency range of ~200-700 GHz, using backward wave...
Antiferromagnetism in the Vortex Cores of YBa$_2$Cu$_3$O$_{7-\delta}$ (2002)
Mitrovi{ć}, V. F., Sigmund, E. E., Halperin, W. P., Reyes, A. P., Kuhns, P., Moulton, W. G.
We report spatially resolved nuclear magnetic resonance measurements on a high temperature superconductor that indicate the presence of correlated antiferromagnetic fluctuations in the vortex core....
High-magnetic-field NMR studies of LiVGe2O6: A quasi-one-dimensional spin S=1 system (2002)
Vonlanthen, P., Tanaka, K. B., Goto, A., Clark, W. G., Millet, P., Henry, J. Y., ...
We report Li-7 pulsed NMR measurements in polycrystalline and single-crystal samples of the quasi-one-dimensional S=1 antiferromagnet LiVGe2O6, whose AF transition temperature is T(N)similar or equal...
High Magnetic Field NMR Studies of LiVGe$_2$O$_6$, a quasi 1-D Spin $S = 1$ System (2001)
Vonlanthen, P., Tanaka, K. B., Goto, Atsushi, Clark, W. G., Millet, P., Henry, J. Y., ...
We report $^{7}$Li pulsed NMR measurements in polycrystalline and single crystal samples of the quasi one-dimensional S=1 antiferromagnet LiVGe$_2$O$_6$, whose AF transition temperature is...
Mitrovi{ć}, V. F., Sigmund, E. E., Eschrig, M., Bachman, H. N., Halperin, W. P., Reyes, A. P., ...
One of the puzzling aspects of high temperature superconductors is the prevalence of magnetism in the normal state and the persistence of superconductivity in very high magnetic fields. Generally,...
The Pseudogap in YBa$_2$Cu$_3$O$_{7-\delta}$ from NMR in High Magnetic Fields (2001)
Mitrovi{ć}, V. F., Bachman, H. N., Halperin, W. P., Reyes, A. P., Kuhns, P., Moulton, W. G.
We report $^{17}$O(2,3) and $^{63}$Cu(2) spin-lattice relaxation rates and the $^{17}$O(2,3) spin-spin relaxation rate in different magnetic fields in YBa$_2$Cu$_3$O$_7$ near $T_c$. Together these...
Campana, A., Rigamonti, A., Carretta, P., Borsa, F., Kuhns, P., ...
We report on 139La and 63Ccu NMR/NQR measurements in the high-Tc superconductor La1.90Sr0.10CuO4 with Tc=26.5 K. Spin fluctuations probed by 139La spin-lattice relaxation (T1), continuously slow down...
Zheng, Guo-qing, Ozaki, H., Clark, W. G., Kitaoka, Y., Kuhns, P., Reyes, A. P., ...
From measurements of the ^{63}Cu Knight shift (K) and the nuclear spin-lattice relaxation rate (1/T_{1}) under magnetic fields from zero up to 28 T in the slightly overdoped superconductor...
Superconducting Fluctuation Effects on the Spin-Lattice Relaxation Rate in YBa_2Cu_3O_{6.95} (1999)
Mitrovi{ć}, V. F., Bachman, H. N., Halperin, W. P., Eschrig, M., Sauls, J. A., Reyes, A. P., ...
We report 63Cu(2) spin-lattice relaxation rate measurements of YBa_2Cu_3O_{6.95} in magnetic fields from 2.1 T to 27.3 T obtained from 17O(2,3) nuclear magnetic resonance spin-spin relaxation. For T...
Superconducting Fluctuation Effects on the Electron Spin Susceptibility in YBa_2Cu_3O_{6.95} (1999)
Bachman, H. N., Mitrovi{ć}, V. F., Reyes, A. P., Halperin, W. P., Eschrig, M., Sauls, J. A., ...
The electronic spin susceptibility of YBa_2Cu_3O_{6.95} has been measured with high precision up to 24 Tesla with 17O nuclear magnetic resonance. Its temperature dependence can be accounted for by...
Magnetic field independence of the spin gap in YBa_2Cu_3O_{7-delta} (1998)
Gorny, K., Vyaselev, O. M., Martindale, J. A., Nandor, V. A., Pennington, C. H., Hammel, P. C., ...
We report, for magnetic fields of 0, 8.8, and 14.8 Tesla, measurements of the temperature dependent ^{63}Cu NMR spin lattice relaxation rate for near optimally doped YBa_2Cu_3O_{7-delta}, near and...