Dynamics of nonergodic ferromagnetic/antiferromagnetic ordering and magnetocalorics in antiperovskite Mn3SnC

Ö. Çakır, F. Cugini, M. Solzi, K. Priolkar, M. Acet, and M. Farle
Phys. Rev. B 96, 014436 – Published 28 July 2017

Abstract

We investigated the time dependence of the magnetic configuration at the mixed magnetic magnetostructural transition in Mn3SnC. The nonergodic nature of the transition involves the stabilization of a final magnetic configuration that involves additional AF ordering which is not present when the transition is initiated and develops only in time. We show the presence of the nonergodicity over a time scale of about 1 hour by field and time-dependent magnetization studies. Two characteristic times related to the transition are observed. We also study the equilibrium thermodynamics under ergodic conditions by heat capacity studies and determine the entropy-change and the adiabatic temperature change around the transition. We find agreement between the indirect and direct methods in determining the adiabatic temperature change and discuss the influence of nonergodic properties on the magnetocaloric effects.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
3 More
  • Received 9 June 2017

DOI:https://doi.org/10.1103/PhysRevB.96.014436

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Ö. Çakır1, F. Cugini2, M. Solzi2, K. Priolkar3, M. Acet4,*, and M. Farle4,5

  • 1Physics Department, Yildiz Technical University, 34220 Esenler, Istanbul, Turkey
  • 2Department of Mathematical, Physical and Computer Sciences, University of Parma, Parco Area delle Scienze 7/A, 43124 Parma, Italy
  • 3Department of Physics, Goa University Taleigao Plateau, 403206 Goa, India
  • 4Experimentalphysik, University of Duisburg-Essen, 47048 Duisburg, Germany
  • 5Center for Functionalized Magnetic Materials, Immanuel Kant Baltic Federal University, Kaliningrad, Russian Federation

  • *mehmet.acet@uni-due.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 96, Iss. 1 — 1 July 2017

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×