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Effects of pressure on the magnetic-structural and Griffiths-like transitions in Dy5Si3Ge

AuthorsMarcano, N.; Algarabel, Pedro A. ; Rodríguez Fernández, J.; Magen, Cesar; Morellón, Luis; Ibarra, M. Ricardo
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review B 88: 214429 (2013)
AbstractMagnetization studies have been performed on a polycrystalline sample of Dy5Si3Ge as a function of an applied magnetic field (up to 50 kOe) and hydrostatic pressure (up to 10 kbar) in the 5-300 K temperature range. The anomalous behavior of the magnetic susceptibility indicates that a Griffiths-like phase exists at low magnetic fields and pressures up to 10 kbar. We present evidence that the high-temperature second-order ferromagnetic transition can be coupled with the low-temperature first-order crystallographic transformation into a single first-order magnetic-crystallographic transformation using a magnetic field and hydrostatic pressure as tuning parameters. The effect of pressure on the Griffiths-like phase is reported and analyzed in the framework of the complex competition between the interslab and intraslab magnetic interactions. © 2013 American Physical Society.
DescriptionUnder the terms of the Creative Commons Attribution License 3.0 (CC-BY).-- et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.88.214429
Identifiersdoi: 10.1103/PhysRevB.88.214429
issn: 1098-0121
e-issn: 1550-235X
Appears in Collections:(ICMA) Artículos
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