J
J. S. Gardner
Researcher at Indiana University
Publications - 52
Citations - 1392
J. S. Gardner is an academic researcher from Indiana University. The author has contributed to research in topics: Neutron scattering & Inelastic neutron scattering. The author has an hindex of 20, co-authored 52 publications receiving 1273 citations. Previous affiliations of J. S. Gardner include National Institute of Standards and Technology.
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Journal ArticleDOI
Inter- and intratrimer excitations in the multiferroic Ba 3 NbFe 3 Si 2 O 14
H. D. Zhou,Yafis Barlas,Christopher R. Wiebe,Christopher R. Wiebe,Yiming Qiu,Yiming Qiu,John R. D. Copley,J. S. Gardner,J. S. Gardner +8 more
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Absence of long-range magnetic ordering in the pyrochlore compound Er2Sn2O7
P. M. Sarte,H. J. Silverstein,B. T. K. Van Wyk,J. S. Gardner,J. S. Gardner,Yiming Qiu,Yiming Qiu,H. D. Zhou,Christopher R. Wiebe +8 more
TL;DR: These new measurements on Er2Sn2O7 suggest a new lower bound for the frustration index of f = |Θ(CW)|/T(N) = 14/0.1 = 140, placing this compound into a highly frustrated regime.
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The origin of persistent spin dynamics and residual entropy in the stuffed spin ice Ho2.3Ti1.7O7−δ
H. D. Zhou,Christopher R. Wiebe,Younjung Jo,Luis Balicas,Yiming Qiu,Yiming Qiu,John R. D. Copley,Georg Ehlers,Peter Fouquet,J. S. Gardner,J. S. Gardner +10 more
TL;DR: In this article, the crystal growth of stuffed spin ice Ho2.3Ti1.7O7−δ was studied and it was found that even with a large perturbation, the system still has some key signatures of the spin ice state, but the spin dynamics is significantly altered.
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Magnetic order and crystal field excitations in Er2Ru2O7: a neutron scattering study
J. S. Gardner,Georg Ehlers +1 more
TL;DR: The magnetic pyrochlore Er( 2)Ru(2)O(7) has been studied with neutron scattering and susceptibility measurements down to a base temperature of 270 mK and inelastic measurements reveal a wealth of crystal field levels of the Er ion and a copious amount of magnetic scattering below 15 meV.
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Yb 2 Sn 2 O 7 : A magnetic Coulomb liquid at a quantum critical point
Zhiling Dun,Eun Sang Choi,H. D. Zhou,H. D. Zhou,Alannah Hallas,H. J. Silverstein,Yiming Qiu,Yiming Qiu,John R. D. Copley,J. S. Gardner,J. S. Gardner,Christopher R. Wiebe,Christopher R. Wiebe,Christopher R. Wiebe +13 more
TL;DR: In this article, the authors reported neutron scattering and ac susceptibility measurements on the pyrochlore Yb${}_{2}$Sn${}-2}-O${} -O${]-O{}-7}$ and showed that the system is a ferromagnet with persistent spin dynamics down to 0.05 K.