By Topic

Large magnetocaloric effect induced by intrinsic structural transition in Dy1-x HoxMnO3

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
7 Author(s)
Shao, Mingjie ; Department of Physics, Shanghai University, Shanghai 200444, China ; Cao, Shixun ; Yuan, Shujuan ; Shang, Jin
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link: 

We report the magnetic and magnetocaloric properties of Dy1-xHoxMnO3 (0 ≤ x ≤ 1). Large entropy change of 12.5 J/kg K and refrigeration capacity of 312 J/kg at 7 T for HoMnO3 is calculated based on isothermal magnetization measurements. The peak temperature of magnetic entropy change for all samples keeps the same 10.5 K, indicating that Ho3+ doping only affects the value of magnetic entropy. An unambiguous intrinsic structural transition near 7 K is first observed by strain measurement, which is believed as the origin of magnetic symmetry transition of Dy1-xHoxMnO3 and induces the magnetocaloric effect with the cooperation interaction between Dy3+/Ho3+and Mn3+ spins.

Published in:

Applied Physics Letters  (Volume:100 ,  Issue: 22 )