Effects of Ga doping on the electric and magnetic properties of DyMn^sub 1-x^Ga^sub x^O^sub 3

Effects of Ga doping on the electric and magnetic properties of DyMn^sub 1-x^Ga^sub x^O^sub 3

Ga3+ for Mn3+ substitution in multiferroic DyMn1-xGaxO3(x = 0, 0.02, 0.05, 0.1, 0.2, 0.3 and 0.4) has been performed to study the change on Mn3+ ordering, which also influences on the ordering of Dy3+. The samples are pure and their dielectric constant, electric polarization and magnetic properties...

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Bibliographic Details
Published in:Physica. B, Condensed matter Vol. 530; p. 49
Main Authors: Li, SZ, Chen, SS, Wang, XZ, Liu, JM
Format: Journal Article
Language:English
Published: Amsterdam Elsevier BV 01-02-2018
Subjects:
Dielectric properties
Doping
Dysprosium
Electric polarization
Electric properties
Magnetic fields
Magnetic properties
Multiferroic materials
Semiconductor doping
Studies
Substitutes
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Summary:Ga3+ for Mn3+ substitution in multiferroic DyMn1-xGaxO3(x = 0, 0.02, 0.05, 0.1, 0.2, 0.3 and 0.4) has been performed to study the change on Mn3+ ordering, which also influences on the ordering of Dy3+. The samples are pure and their dielectric constant, electric polarization and magnetic properties have been investigated. When the content of Ga3+ increases above 0.1, multiferroic properties completely disappear. These results indicate that Ga3+ for Mn3+ substitution in DyMnO3 bulk can reduce the exchange interactions of JMn-Mn, JDy-Mn and the bond angle of Mn-O-Mn, while the electric polarization is observed to decrease rapidly, even for small Ga doping, and the anomaly at low T in P(T) associated with the Dy ordering is no longer observed for x = 0.05.
ISSN:0921-4526
1873-2135