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N. P. Raju
Researcher at Ohio State University
Publications - 65
Citations - 3112
N. P. Raju is an academic researcher from Ohio State University. The author has contributed to research in topics: Magnetic susceptibility & Neutron diffraction. The author has an hindex of 27, co-authored 64 publications receiving 2962 citations. Previous affiliations of N. P. Raju include Carleton University & The Racah Institute of Physics.
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Journal ArticleDOI
Cooperative Paramagnetism in the Geometrically Frustrated Pyrochlore Antiferromagnet Tb 2 Ti 2 O 7
J. S. Gardner,S. R. Dunsiger,Bruce D. Gaulin,Michel J. P. Gingras,John E. Greedan,Robert F. Kiefl,Mark D Lumsden,W. A. MacFarlane,N. P. Raju,J. E. Sonier,Ian P. Swainson,Zin Tun +11 more
TL;DR: In this article, a pyrochlore antiferromagnet in which the moments reside on a network of corner-sharing tetrahedra was studied. But unlike other geometrically frustrated systems, this system remains paramagnetic down to 0.07 K, rather than ordering into a conventional N\'eel or spin-glass-like state.
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Shaped Ceramics with Tunable Magnetic Properties from Metal-Containing Polymers
Mark J. MacLachlan,Madlen Ginzburg,Neil Coombs,Thomas W. Coyle,N. P. Raju,John E. Greedan,Geoffrey A. Ozin,Ian Manners +7 more
TL;DR: The results indicate that cross-linked metal-containing polymers may be useful precursors to ceramic monoliths with tailorable magnetic properties.
Journal ArticleDOI
Thermodynamic and single-ion properties of Tb 3 + within the collective paramagnetic-spin liquid state of the frustrated pyrochlore antiferromagnet Tb 2 Ti 2 O 7
Michel J. P. Gingras,Michel J. P. Gingras,B. C. den Hertog,M.D. Faucher,J. S. Gardner,S. R. Dunsiger,Liang-Juan Chang,Bruce D. Gaulin,Bruce D. Gaulin,N. P. Raju,John E. Greedan +10 more
TL;DR: In this article, the authors present results from dc magnetic susceptibility, specific-heat data, inelastic neutron-scattering measurements, and crystal-field calculations that strongly suggest that the ions in the antiferromagnetic pyrochlore lattice of corner-sharing tetrahedra remain in a collective paramagnetic state down to 70 mK.
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Static Critical Behavior of the Spin-Freezing Transition in the Geometrically Frustrated Pyrochlore Antiferromagnet Y 2 Mo 2 O 7
TL;DR: In this article, the authors present results of nonlinear dc magnetization measurements on frustrated pyrochlore antiferromagnets that provide strong evidence that there is an underlying thermodynamic phase transition at a temperature similar to what is observed in randomly frustrated spin-glasses.
Journal ArticleDOI
Transition to long-range magnetic order in the highly frustrated insulating pyrochlore antiferromagnet Gd 2 Ti 2 O 7
TL;DR: In this paper, it was shown that the pyrochlore structure oxide exhibits short-range order that starts developing at 30 K, as well as long-range magnetic order at $T\ensuremath{\sim}1$ K.