Sonier, J. E., Kaiser, C. V., Pacradouni, V., Sabok-Sayr, S. A., Cochrane, C., MacLaughlin, D. E., ...
The doping of charge carriers into the CuO2 planes of copper oxide Mott insulators causes a gradual destruction of antiferromagnetism and the emergence of high-temperature superconductivity. Optimal...
Unconventional spin freezing and fluctuations in the frustrated antiferromagnet NiGa2S4 (2008)
MacLaughlin, D. E., Nambu, Y., Nakatsuji, S., Heffner, R. H., Shu, Lei, Bernal, O. O., ...
Muon spin rotation (muSR) experiments reveal unconventional spin freezing and dynamics in the two-dimensional (2D) triangular lattice antiferromagnet NiGa2S4. Long-lived disordered Ni-spin freezing...
Weak quasistatic magnetism in the frustrated Kondo lattice Pr_2Ir_2O_7 (2008)
MacLaughlin, D. E., Ohta, Y., Machida, Y., Nakatsuji, S., Luke, G. M., Ishida, K., ...
Muon spin relaxation experiments have been performed in the pyrochlore iridate Pr_2Ir_2O_7 for temperatures in the range 0.025-250 K. Kubo-Toyabe relaxation functions are observed up to > 200 K,...
Shu, Lei, MacLaughlin, D. E., Beyermann, W. P., Heffner, R. H., Morris, G. D., Bernal, O. O., ...
Transverse-field muon spin rotation ($\mu$SR) experiments in the heavy-fermion superconductor PrOs$_{4}$Sb$_{12}$ ($T_{c}=1.85$ K) suggest that the superconducting penetration depth $\lambda(T)$ is...
Shekhter, Arkady, Shu, Lei, Aji, Vivek, MacLaughlin, D. E., Varma, C. M.
We calculate the screening charge density distribution due to a point charge, such as that of a positive muon ($\mu^+$), placed between the planes of a highly anisotropic layered metal. In underdoped...
Takeya, H., Ishida, K., Kitagawa, K., Ihara, Y., Onuma, K., Maeno, Y., ...
We have performed $^{69,71}$Ga nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) and muon spin rotation/resonance on the quasi two-dimensional antiferromagnet (AFM)...
Ohishi, K., Heffner, R. H., Morris, G. D., Bauer, E. D., Graf, M. J., ...
We have measured the temperature dependence and magnitude of the superfluid density $\rho_{\rm s}(T)$ via the magnetic field penetration depth $\lambda(T)$ in PuCoGa$_5$ (nominal critical temperature...
Multiband superconductivity and penetration depth in PrOs4Sb12 (2007)
MacLaughlin, D. E., Shu, Lei, Heffner, R. H., Sonier, J. E., Callaghan, F. D., Morris, G. D., ...
The effective superconducting penetration depth measured in the vortex state of PrOs4Sb12 using transverse-field muon spin rotation (TF-muSR) exhibits an activated temperature dependence at low...
Shu, Lei, MacLaughlin, D. E., Aoki, Y., Tunashima, Y., Yonezawa, Y., Sanada, S., ...
Zero- and longitudinal-field muon spin relaxation (MuSR) experiments have been carried out in the alloy series Pr(Os1-xRux)4Sb12 and Pr1-yLayOs4Sb12 to elucidate the anomalous dynamic muon spin...
Hidden order and disorder effects in URu2Si2 (2006)
Bernal, O. O., Moroz, M. E., Ishida, K., Murakawa, H., Reyes, A. P., Kuhns, P. L., ...
Critical slowing down in the geometrically frustrated pyrochlore antiferromagnet Gd_2Ti_2O_7 (2005)
MacLaughlin, D. E., Rose, M. S., Anderson, J. E., Shu, Lei, Heffner, R. H., Kimura, T., ...
Longitudinal-field muon spin relaxation experiments have been carried out in the paramagnetic state of single-crystal Gd_2Ti_2O_7 just above the phase transition at T_m = 1.0 K. At high applied...
Effect of annealing on glassy dynamics and non-Fermi liquid behavior in UCu_4Pd (2005)
MacLaughlin, D. E., Rose, M. S., Anderson, J. E., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., ...
Longitudinal-field muon spin relaxation (LF-muSR) experiments have been performed in unannealed and annealed samples of the heavy-fermion compound UCu_4Pd to study the effect of disorder on non-Fermi...
Susceptibility inhomogeneity and non-Fermi liquid behavior in UCu_{5-x}Pt_x (2005)
MacLaughlin, D. E., Rose, M. S., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., Chau, R., ...
Transverse-field muSR shifts and relaxation rates have been measured in the non-Fermi liquid (NFL) alloy system UCu_{5-x}Pt_x, x = 1.0, 1.5, and 2.5. At low temperatures the fractional spread in...
New limits on the ordered moments in alpha-Pu and Ga-stabilized delta-Pu (2005)
Heffner, R. H., Morris, G. D., Fluss, M. J., Chung, B., MacLaughlin, D. E., Shu, L., ...
We present the first muon spin relaxation measurements ever performed on elemental Pu, and set the most stringent upper limits to date on the magnitude of the ordered moment in alpha-Pu and...
Evolution of the heavy fermion state in Ce2IrIn8 (2005)
Heffner, R. H., Morris, G. D., Bauer, E. D., Sarrao, J. L., Thompson, J. D., MacLaughlin, D. E., ...
We report muon spin rotation Knight shift and susceptibility studies for 1 T applied field along the crystalline c- and a-axes of the heavy fermion compound Ce2IrIn8. Below a characteristic...
Penetration depth, symmetry breaking, and gap nodes in superconducting PrOs4Sb12 (2005)
Shu, Lei, MacLaughlin, D. E., Heffner, R. H., Morris, G. D., Bernal, O. O., Callaghan, F., ...
Transverse-field muon spin relaxation rates in single crystals of the heavy-fermion superconductor PrOs4Sb12 (Tc = 1.85 K) are nearly constant in the vortex state for temperatures below ~0.5Tc. This...
The symmetry of the superconducting order parameter in PuCoGa$_5$ (2005)
Morris, G. D, Heffner, R. H., Bauer, E. D., Morales, L. A., Sarrao, J. S., Fluss, M. J., ...
The symmetry of the superconducting order parameter in single-crystalline PuCoGa$_5$ ($T_{\rm c} = 18.5$ K) is investigated via zero- and transverse- field muon spin relaxation ($\mu$SR)...
Hidden and magnetic order in powdered URu2Si2 found by NMR at ambient pressure (2005)
Bernal,O. O., Moroz,M. E., MacLaughlin,D. E., Lukefahr,H. G., Mydosh,J. A., Gortenmulder,T. J.
Hidden and magnetic order in powdered URu2Si2 found by NMR at ambient pressure (2005)
Bernal, O. O., Moroz, M. E., MacLaughlin, D. E., Lukefahr, H. G., Mydosh, J. A., Gortenmulder, T. J.
Disorder, inhomogeneity and spin dynamics in f-electron non-Fermi liquid systems (2004)
MacLaughlin, D. E., Heffner, R. H., Bernal, O. O., Ishida, K., Sonier, J. E., Nieuwenhuys, G. J., ...
Muon spin rotation and relaxation ($\mu$SR) experiments have yielded evidence that structural disorder is an important factor in many f-electron-based non-Fermi-liquid (NFL) systems. Disorder-driven...
Low-temperature magnetic order and spin dynamics in YbRh2Si2 (2003)
Ishida,K., MacLaughlin,D. E., Young,B. L., Okamoto,K., Kawasaki,Y., Kitaoka,Y., ...
μSR and low-temperature antiferromagnetism in the ordered non-Fermi-liquid compound YbRh2Si2 (2003)
Ishida,K., MacLaughlin,D. E., Okamoto,K., Kawasaki,Y., Kitaoka,Y., Nieuwenhuys,G. J., ...
Spin dynamics in a structurally ordered non-Fermi-liquid compound: YbRh2Si2 (2003)
Ishida,K., MacLaughlin,D. E., Bernal,O. O., Heffner,R. H., Nieuwenhuys,G. J., Trovarelli,O., ...
Magnetism and superconductivity in CeRh_{1-x}Ir_xIn_5 heavy fermion materials (2003)
Morris, G. D., Heffner, R. H., Sonier, J. E., MacLaughlin, D. E., Bernal, O. O., Nieuwenhuys, G. J., ...
We report on zero-field muon spin relaxation studies of cerium based heavy-fermion materials CeRh_{1-x}Ir_xIn_5. In the superconducting x=0.75 and 1 compositions muon spin relaxation functions were...
Spin dynamics in a structurally ordered non-Fermi-liquid compound: YbRh2Si2 (2003)
Ishida, K., MacLaughlin, D. E., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., Trovarelli, O., ...
μSR and low-temperature antiferromagnetism in the ordered non-Fermi-liquid compound YbRh2Si2 (2003)
Ishida, K., MacLaughlin, D. E., Okamoto, K., Kawasaki, Y., Kitaoka, Y., Nieuwenhuys, G. J., ...
Low-temperature magnetic order and spin dynamics in YbRh2Si2 (2003)
Ishida, K., MacLaughlin, D. E., Young, B. L., Okamoto, K., Kawasaki, Y., Kitaoka, Y., ...
muSR and NMR in f-electron non-Fermi liquid materials (2002)
MacLaughlin, D. E., Rose, M. S., Young, Ben-Li, Bernal, O. O., Heffner, R. H., Morris, G. D., ...
Magnetic resonance (muSR and NMR) studies of f-electron non-Fermi-liquid (NFL) materials give clear evidence that structural disorder is a major factor in NFL behavior. Longitudinal-field muSR...
muSR in Ce_{1-x}La_xAl_3: anisotropic Kondo effect? (2002)
MacLaughlin, D. E., Rose, M. S., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., ...
Zero-field muSR experiments in the heavy-fermion alloys Ce_{1-x}La_xAl_3, x = 0 and 0.2, examine a recent proposal that the system exhibits a strong anisotropic Kondo effect. We resolve a damped...
Spin dynamics in a structurally ordered non-Fermi liquid compound: YbRh_2Si_2 (2002)
Ishida, K., MacLaughlin, D. E., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., Trovarelli, O., ...
Muon spin relaxation (muSR) experiments have been carried out at low temperatures in the non-Fermi-liquid heavy-fermion compound YbRh_2Si_2. The longitudinal-field muSR relaxation function is...
muSR linewidth and isotropic pairing in superconducting PrOs4Sb12 (2002)
MacLaughlin, D. E., Sonier, J. E., Heffner, R. H., Bernal, O. O., Rose, M. S., ...
Transverse-field muon spin rotation measurements in the vortex-lattice mixed state of the heavy-fermion (HF) superconductor PrOs4Sb12 yield a temperature dependence of the penetration depth...
Susceptibility Inhomogeneity and Non-Fermi-Liquid Behavior in Ce(Ru_{0.5}Rh_{0.5})_2Si_2 (2001)
MacLaughlin, D. E., Bernal, O. O., Sonier, J. E., Heffner, R. H., Taniguchi, T., Miyako, Y.
Magnetic susceptibility and muon spin rotation (\muSR) experiments have been carried out to study the effect of structural disorder on the non-Fermi-liquid (NFL) behavior of the heavy-fermion alloy...
Slow Spin Dynamics in Non-Fermi-Liquid UCu_{5-x}Pd_x, x = 1.0 and 1.5 (2001)
MacLaughlin, D. E., Heffner, R. H., Bernal, O. O., Nieuwenhuys, G. J., Sonier, J. E., Rose, M. S., ...
Low-temperature muon spin-lattice relaxation measurements in the non-Fermi-liquid heavy-fermion alloys UCu_{5-x}Pd_x, x = 1.0 and 1.5, indicate inhomogeneously distributed f-electron spin fluctuation...
29-Si NMR and Hidden Order in URu2Si2 (2001)
Bernal, O. O., Rodrigues, C., Martinez, A., Lukefahr, H. G., MacLaughlin, D. E., Menovsky, A. A., ...
We present new 29-Si NMR spectra in URu2Si2 for varying temperature T, and external field H. On lowering T, the systematics of the low-field lineshape and width reveal an extra component (lambda) to...
Heffner, R. H., MacLaughlin, D. E., Sonier, J. E., Nieuwenhuys, G. J., Bernal, O. O., Simovic, Barbara, ...
This paper has been withdrawn by the authors. We performed additional zero-field muon spin relaxation measurements in the superconducting state of CeIrIn$_5$ and found that the spontaneous fields...
Glassy Spin Dynamics in Non-Fermi-Liquid UCu5xPdx, x = 1.0 and 1.5 (2001)
Bernal, O. O., Heffner, R. H., MacLaughlin, D. E., Nieuwenhuys, G. J., Rose, M. S.
29Si NMR and Hidden Order in URu2Si2 (2001)
Bernal, O. O., Lukefahr, H. G., MacLaughlin, D. E., Martinez, A., Rodrigues, C.
Glassy Spin Dynamics in Non-Fermi-Liquid UCu_{5-x}Pd_x, x = 1.0 and 1.5 (2000)
MacLaughlin, D. E., Bernal, O. O., Heffner, R. H., Nieuwenhuys, G. J., Rose, M. S., Sonier, J. E., ...
Local f-electron spin dynamics in the non-Fermi-liquid heavy-fermion alloys UCu_{5-x}Pd_x, x = 1.0 and 1.5, have been studied using muon spin-lattice relaxation. The sample-averaged asymmetry...
Positive Muon Knight Shift Measurements in U_{0.965}Th_{0.035}Be_{13} Single Crystals (2000)
Sonier, J. E., Heffner, R. H., MacLaughlin, D. E., Nieuwenhuys, G. J., Bernal, O., Movshovich, R., ...
Muon spin rotation measurements of the temperature dependence of the Knight shift in single crystals of U_{0.965}Th_{0.035}Be_{13} have been used to study the static spin susceptibility below the...
^{27}Al Impurity-Satellite NMR and Non-Fermi-Liquid Behavior in U_{1-x}Th_xPd_2Al_3 (2000)
Liu, Chia-Ying, MacLaughlin, D. E., Lukefahr, H. G., Miller, G., Hui, K., Maple, M. B., ...
Non-Fermi-liquid (NFL) behavior in the f-sublattice-diluted alloy system U_{1-x}Th_xPd_2Al_3 has been studied using ^{27}Al nuclear magnetic resonance (NMR). Impurity satellites due to specific U...
NMR detection of temperature-dependent magnetic inhomogeneities in URu2Si2 (2000)
Bernal, O.O., Becker, B., Mydosh, J.A., Nieuwenhuys, G.J., Menovsky, A.A., Paulus, P.M., ...
Observation of two time scales in the ferromagnetic manganite La(1-x)Ca(x)MnO(3), x = 0.3 (1999)
Heffner, R. H., Sonier, J. E., MacLaughlin, D. E., Nieuwenhuys, G. J., Ehlers, G., Mezei, F., ...
We report new zero-field muon spin relaxation and neutron spin echo measurements in ferromagnetic (FM) (La,Ca)MnO3 which taken together suggest two spatially separated regions in close proximity...
Disorder-Driven Non-Fermi-Liquid Behavior in CeRhRuSi_2 (1999)
Liu, Chia-Ying, MacLaughlin, D. E., Neto, A. H. Castro, Lukefahr, H. G., Thompson, J. D., Sarrao, J. L., ...
We report measurements of the bulk magnetic susceptibility and ^{29}Si nuclear magnetic resonance (NMR) linewidth in the heavy-fermion alloy CeRhRuSi_2. The linewidth increases rapidly with...
NMR Detection of Temperature-Dependent Magnetic Inhomogeneities in URu2Si2 (1999)
Bernal, O. O., Becker, B., Mydosh, J. A., Nieuwenhuys, G. J., Menovsky, A. A., Paulus, P. M., ...
We present 29Si-NMR relaxation and spectral data in URu2Si2. Our echo-decay experiments detect slowly fluctuating magnetic field gradients. In addition, we find that the echo-decay shape (time...
Pd/Cu Site Interchange and Non-Fermi-Liquid Behavior in UCu_4Pd (1998)
Booth, C. H., MacLaughlin, D. E., Heffner, R. H., Chau, R., Maple, M. B, Kwei, G. H.
X-ray-absorption fine-structure measurements of the local structure in UCu_4Pd are described which indicate a probable lattice-disorder origin for non-Fermi-liquid behavior in this material. Short...
Muon Spin Relaxation and Nonmagnetic Kondo State in PrInAg_2 (1998)
MacLaughlin, D. E., Heffner, R. H., Nieuwenhuys, G. J., Canfield, P. C., Amato, A., Baines, C., ...
Muon spin relaxation experiments have been carried out in the Kondo compound PrInAg_2. The zero-field muon relaxation rate is found to be independent of temperature between 0.1 and 10 K, which rules...
Susceptibility inhomogeneity and non-Fermi liquid behavior in nominally ordered UCu_4Pd (1998)
MacLaughlin, D. E., Heffner, R. H., Nieuwenhuys, G. J., Luke, G. M., Fudamoto, Y., Uemura, Y. J., ...
Muon spin rotation experiments on a stoichiometric sample of the non-Fermi liquid (NFL) heavy-fermion compound UCu_4Pd, in which recent neutron Bragg scattering measurements are consistent with an...
mu +SR in the random bond spin glass URh2Ge2 (1998)
Menovsky, A.A., Nieuwenhuys, G.J., Sullow, S., Mydosh, J.A., Heffner, R.H., Le, L.P., ...
μ+SR in the random bond spin glass URh2Ge2 (1998)
Nieuwenhuys,G. J., Suellow,S., Menovsky,A. A., Mydosh,J. A., Heffner,R. H., Le,L. P., ...
μ+SR in the random bond spin glass URh2Ge2 (1998)
Nieuwenhuys, G. J., Suellow, S., Menovsky, A. A., Mydosh, J. A., Heffner, R. H., Le, L. P., ...
Competition between magnetism and superconductivity in CeCu2Si2 (1997)
Feyerherm,R., Amato,A., Geibel,C., Gygax,F. N., Hellmann,P., Heffner,R. H., ...
Competition between magnetism and superconductivity in CeCu2Si2 (1997)
Feyerherm, R., Amato, A., Geibel, C., Gygax, F. N., Hellmann, P., Heffner, R. H., ...
?SR in antiferromagnetic UNiB4 (1995)
Nieuwenhuys, G.J., Mentink, S.A.M., Menovsky, A.A., Amato, A., Feyerherm, R., Gygax, F.N., ...