Papers by Thomas Lograsso
Physical Review B, 2005
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Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics, 2003
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Physical Review B, 2014
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Xviiith International Conference on Ultrafast Phenomena, 2013
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We present a single crystal neutron diffraction study of the magnetic short-range correlations in... more We present a single crystal neutron diffraction study of the magnetic short-range correlations in Tb$_5$Ge$_4$ which orders antiferromagnetically below the Neel temperature $T_N$ $\approx$ 92 K. Strong diffuse scattering arising from magnetic short-range correlations was observed in wide temperature ranges both below and above $T_N$. The antiferromagnetic ordering in Tb$_5$Ge$_4$ can be described as strongly coupled ferromagnetic block layers in the $ac$-plane that stack along the b-axis with weak antiferromagnetic inter-layer coupling. Diffuse scattering was observed along both $a^*$ and $b^*$ directions indicating three-dimensional short-range correlations. Moreover, the $q$-dependence of the diffuse scattering is Squared-Lorentzian in form suggesting a strongly clustered magnetic state that may be related to the proposed Griffiths-like phase in Gd$_5$Ge$_4$.
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Physical Review Letters, 2004
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Physical Review B, 2011
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Physical Review B, 2008
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Physical Review B, 2007
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Physical Review B, 2006
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Physical Review B, 2009
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Physical Review B, 2005
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Physical Review B, 2007
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Physical Review B, 2007
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Physical Review B, 2010
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Physical Review B, 2006
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Physical Review B, 2006
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Physical Review B, 2008
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Physical Review B, 2011
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Nature, 2013
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Papers by Thomas Lograsso