Influence of Er doping on magnetic and magnetocaloric behavior of hexagonal Yb1-xErxMnO3 (x=0.1, 0.2, 0.3, 0.5, 0.7 & 1.0) manganites

被引：7

作者：

Sattibabu, Bhumireddi ^{[1
]}

Bhatnagar, A. K. ^{[2
]}

Vinod, K. ^{[3
]}

Mani, Awadhesh ^{[3
]}

机构：

[1] GITAM Univ, Inst Sci, Dept Elect & Phys, Visakhapatnam 530045, Andhra Pradesh, India

[2] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India

[3] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Condensed Matter Phys Div, Kalpakkam 603102, Tamil Nadu, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 716卷

关键词：

Magnetic materials; Ceramics; Thermal properties; Magnetic entropy; RARE-EARTH; RMNO3; PHASE; YB; LU;

D O I：

10.1016/j.jallcom.2017.05.064

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of substitution of Er at the Yb sites in YbMnO3 on its magnetic and magnetocaloric is reported. All Yb1-xErxMnO3 (x = 0.1, 0.2, 0.3, 0.5, 0.7 and 1.0) samples show hexagonal structure with P6(3)cm space group as confirmed by powder X-ray Diffraction. The antiferromagnetic ordering temperature (Neel temperature, T-N) is observed to decrease from 86 K for x = 0.1-76 K for x = 1.0. All compounds show ferromagnetic (FM) ordering due to alignment of the Yb/Er moments below 4 K. A field induced transition is also observed in the isothermal magnetization measurements. The magnetic entropy change increased from 3.0 +/- 0.3 to 4.5 +/- 0.7 J/mole-K in a magnetic field of 100 kOe, whereas the Relative Cooling Power (RCP) changed from 52 +/- 7 to 140 +/- 3 J/mol under an applied magnetic field of 100 kOe, when x increased from 0.1 to 1.0. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：284 / 290

页数：7