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

Marcano, Aguado, Noelia ; Algarabel Lafuente, Pedro Antonio (Universidad de Zaragoza) ; Rodríguez-Fernández, Jesús ; Magén, César (Universidad de Zaragoza) ; Morellón, Luis (Universidad de Zaragoza) ; Singh Niraj, K. ; Schlagel, D.L ; Gschneidner Jr., K.A. ; Pecharsky, V. K. ; Ibarra, Manuel Ricardo (Universidad de Zaragoza)

Resumen: Magnetization 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.

Idioma: Inglés

DOI: 10.1103/PhysRevB.88.214429

Año: 2013

Publicado en: Physical review. B, Condensed matter and materials physics 88, 21 (2013), 214429 [9 pp.]
ISSN: 1098-0121

Factor impacto JCR: 3.664 (2013)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 14 / 67 = 0.209 (2013) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/ES/DGA/E26
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2011-27553-C02
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2011-27553-C04

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)