Browsing by Author/Contributor "Heitmann, Thomas"
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AC susceptibility of the quantum critical point mimicking series Lix[Mn1.96Li0.04]O4 (x = 0.0,0.1,0.2,0.35,0.5,0.6,0.8,1.0)
Heitmann, Thomas; Gaddy, John; Lamsal, Jagat; Petrovic, Marcus; Montfrooij, Wouter (American Institute of Physics, 2010)The present work elucidates the series of magnetic phase transitions present in the series of spinel compounds Lix Mn1.96Li0.04 O4 x=0.0, 0.1, 0.2, 0.35, 0.5, 0.6, 0.8, 1.0 . These systems display dynamical scaling originating ... -
Magnetic excitations in the spinel compound Lix[Mn1.96Li0.04]O4 (x=0.2,0.6,0.8,1.0): How a classical system can mimic quantum critical scaling
Heitmann, Thomas; Schmets, Alexander J. M.; Gaddy, John; Lamsal, Jagat; Petrovic, Marcus; Vojta, Thomas; Montfrooij, Wouter (American Physical Society, 2010)We present neutron-scattering results on the magnetic excitations in the spinel compounds Lix Mn1.96Li0.04 O4 x=0.2, 0.6, 0.8, 1.0 . We show that the dominant excitations below T 70 K are determined by Mn ions located in ...