Magnetic phase coexistence in nanosized La0.5–xHoxCa0.5MnO3 manganites

Dhieb, S.; Krichene, A.; Boudjada, N. Chniba; Boujelben, W.; Dhieb, S.; Krichene, A.; Boudjada, N. Chniba; Boujelben, W.

doi:2022.59.3.312

J. Korean Ceram. Soc. > Volume 59(3); 2022 > Article

Original Article

Journal of the Korean Ceramic Society 2022;59(3): 312-321.
doi: https://doi.org/10.1007/s43207-021-00165-x

Magnetic phase coexistence in nanosized La_0.5–xHo_xCa_0.5MnO₃ manganites

S. Dhieb¹, A. Krichene¹

, N. Chniba Boudjada^1,2, W. Boujelben¹

¹Laboratoire de Physique des Matériaux, Faculté des Sciences de Sfax, Université de Sfax, B.P. 1171, 3000 Sfax, Tunisia
²Université Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000 Grenoble, France

Correspondence

A. Krichene ,Email: akramkri@hotmail.fr

Received: September 3, 2021; Revised: October 20, 2021 Accepted: November 1, 2021. Published online: May 31, 2022.

ABSTRACT

In this paper, magnetic phase coexistence and stability of charge ordering in La_0.5–xHo_xCa_0.5MnO₃ (0 ≤ x ≤ 0.15) nanosized samples have been investigated. The particle size of all the samples is located between 47 and 62 nm. The studied samples show pertinent phenomena like Griffiths phase, training effect, exchange bias, charge ordering and magnetic phase separation. At 5 K, the application of 10 T magnetic field generates more ferromagnetic domains in Ho-based samples, indicating that Ho substitution destabilizes the long-range charge ordering characterizing the parent compound La_0.5Ca_0.5MnO₃.

Key words: Nanosized manganite · Charge ordering · Training effect · Exchange bias