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Title

Magnetism and magnetocaloric effect of single-crystal Er5Si4 under pressure

AuthorsMarcano, N.; Algarabel, Pedro A. ; Magen, Cesar; Morellón, Luis; Ibarra, M. Ricardo
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review B 85(2): 024408 (2012)
AbstractMagnetic and magnetocaloric properties of single-crystalline Er 5Si 4 have been investigated as a function of the applied magnetic field (up to 50 kOe) and the hydrostatic pressure (up to 10 kbar) in the 5-300 K temperature range along the three main crystallographic directions. The magnetization isotherms show a highly anisotropic behavior with the easy-magnetization direction along the b axis for the low-pressure monoclinic and high-pressure orthorhombic structures, in good agreement with previous neutron scattering experiments. Below T C, the approach to the saturation shows a steplike behavior when the magnetic field is applied along the hard directions. The steps are sharper as the pressure increases. At constant magnetic field change, increasing the pressure induces a highly anisotropic enhancement of the magnetic entropy change. An enhancement of 20% is observed along the easy axis b, where the magnetic entropy change is maximum. The different evolution of the magnitude and temperature dependence of the magnetocaloric effect along the three crystallographic directions with pressure is discussed. © 2012 American Physical Society.
Descriptionet al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.85.024408
URIhttp://hdl.handle.net/10261/53104
DOI10.1103/PhysRevB.85.024408
Identifiersdoi: 10.1103/PhysRevB.85.024408
issn: 1098-0121
e-issn: 1550-235X
Appears in Collections:(ICMA) Artículos
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