Induced magnetic phase transitions in rare-earth intermetallic compounds RMn2Ge2 in ultrastrong magnetic fields |
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| Authors: | A. Kirste R. Z. Levitin M. von Ortenberg V. V. Platonov N. Puhlmann V. V. Snegirev D. A. Filippov O. M. Tatsenko |
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| Affiliation: | (1) Humboldt University, D-10115 Berlin, Germany;(2) Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(3) Institute of Experimental Physics, Sarov, 607189, Russia |
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| Abstract: | The differential magnetic susceptibility of intermetallic compounds RMn2Ge2 (R=Gd, Tb, Dy, Ho, Y) with a layered tetragonal structure is measured in pulsed magnetic fields up to 130 T. It is found that all these compounds undergo a first-order magnetic phase transition in strong magnetic fields. The nature of this transition is discussed, and it is found that a change in the magnetic state of the manganese sublattice is responsible for the transition. |
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