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6 papers · 2 filters
Ground state in a half-doped manganite distinguished by neutron spectroscopy
G. E. Johnstone, T. G. Perring, O. Sikora +2
We have measured the spin-wave spectrum of the half-doped bilayer manganite Pr(Ca,Sr)2Mn2O7 in its spin, charge, and orbital ordered phase. The measurements, which extend throughou…
Antiferromagnetic Spin Ice Correlations at (1/2,1/2,1/2) in the Ground State of the Pyrochlore Magnet Tb2Ti2O7
K. Fritsch, K. A. Ross, Y. Qiu +5
We present high-resolution single crystal time-of-flight neutron scattering measurements on the candidate quantum spin liquid pyrochlore Tb2Ti2O7 at low temperature and in a magnet…
Magnetic order, magnetic correlations and spin dynamics in the pyrochlore antiferromagnet Er2Ti2O7
P. Dalmas de Reotier, A. Yaouanc, Y. Chapuis +7
Er2Ti2O7 is believed to be a realization of an XY antiferromagnet on a frustrated lattice of corner-sharing regular tetrahedra. It is presented as an example of the order-by-disord…
An x-ray diffraction study of the temperature-induced structural phase transitions in SmVO3
R. D. Johnson, C. C. Tang, I. R. Evans +7
Through powder x-ray diffraction we have investigated the structural behavior of SmVO3, in which orbital and magnetic degrees of freedom are believed to be closely coupled to the c…
Persistent spin dynamics intrinsic to amplitude-modulated long-range magnetic order
M. Pregelj, A. Zorko, O. Zaharko +4
An incommensurate elliptical helical magnetic structure in the frustrated coupled-spin-chain system FeTe2O5Br is surprisingly found to persist down to 53(3) mK (T/T_N ~ 1/200), acc…
Magnetic and transport properties of Pr2Pt3Si5
V. K. Ananda, Anupam, Z. Hossain +3
We have investigated the magnetic and transport properties of a polycrystalline Pr2Pt3Si5 sample through the dc and ac magnetic susceptibilities, electrical resistivity, and specif…