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Weak quasistatic magnetism in the frustrated Kondo lattice Pr_2Ir_2O_7
D. E. MacLaughlin, Y. Ohta, Y. Machida +6
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…
Gapped itinerant spin excitations account for missing entropy in the hidden order state of URuSi
C. R. Wiebe, J. A. Janik, G. J. Macdougall +9
One of the primary goals of modern condensed matter physics is to elucidate the nature of the ground state in various electronic systems. Many correlated electron materials, such a…
Impurity-induced singlet breaking in SrCu2(BO3)2
A. A. Aczel, G. J. MacDougall, J. A. Rodriguez +8
We have performed SR studies on single crystals of SrCu(BO), a quasi-two-dimensional spin system with a spin singlet ground state. We observe two different muon site…
The Anderson-Mott transition induced by hole-doping in Nd1-xTiO3
A. S. Sefat, J. E. Greedan, G. M. Luke +4
The insulator/metal transition induced by hole-doping due to neodymium vacancies of the Mott- Hubbard antiferromagnetic insulator, Nd1-xTiO3, is studied over the composition range…
2D Kagome Ordering in the 3D Frustrated Spinel Li2Mn2O4
C. R. Wiebe, P. L. Russo, A. T. Savici +5
muSR experiments on the geometrically frustrated spinel oxide, Li2Mn2O4, show the development of spin correlations over a range of length scales with decreasing temperature. Increa…
Site-Dilution in quasi one-dimensional antiferromagnet Sr2(Cu1-xPdx)O3: reduction of Neel Temperature and spatial distribution of ordered moment sizes
K. M. Kojima, J. Yamanobe, H. Eisaki +7
We investigate the Neel temperature of Sr2CuO3 as a function of the site dilution at the Cu (S=1/2) sites with Pd (S=0), utilizing the muon spin relaxation (muSR) technique. The Ne…