Magnetic and magnetocaloric properties in polycrystalline La0.2Gd0.5Ba0.3MnO3 compound

被引：9
作者：
Saha, Suvayan [1 ,2 ]
Das, Kalipada [3 ]
Bandyopadhyay, Sudipta [1 ,2 ]
Das, I. [4 ]
机构：
[1] Univ Calcutta, Ctr Res Nanosci & Nanotechnol, JD-2, Kolkata 700098, W Bengal, India
[2] Univ Calcutta, Dept Phys, 92 APC Rd, Kolkata 700009, India
[3] Seth Anandram Jaipuria Coll, Dept Phys, 10 Raja Naba Krishna St, Kolkata 700005, India
[4] Saha Inst Nucl Phys, CMP Div, 1-AF, Kolkata 700064, India
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 460卷
关键词：
Magnetization; Memory effect; Magnetocaloric effect; MAGNETORESISTANCE; ENHANCEMENT; DISORDER; BEHAVIOR; PHASE;
D O I：
10.1016/j.jmmm.2018.03.071
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The detail magnetic measurements of the polycrystalline La0.2Gd0.5Ba0.3MnO3 (LGBMO) compound have been presented in this manuscript. The compound shows high value of magnetocaloric effect (MCE) (-Delta S = 9: 1 J= kg-K at 12 K) at low temperature. The experimental results of magnetization and magnetic memory effect confirm the existence of glassy magnetic phase in the compound at the low temperature (T < 35 K). The rejuvenation study further substantiates the presence of glassy phase. This high value of MCE in the LGBMO compound has been addressed by the presence of the glassy phase. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：165 / 170
页数：6
相关论文
共 33 条
[1]  
[Anonymous], 1993, SPIN GLASSES EXPT IN
[2]   ON A GENERALISED APPROACH TO 1ST AND 2ND ORDER MAGNETIC TRANSITIONS [J].
BANERJEE, SK .
PHYSICS LETTERS, 1964, 12 (01) :16-17
[3]   Enhancement of the magnetoresistive property by introducing disorder in the (La1-xYx)0.7Ca0.3MnO3 compound [J].
Banik, Sanjib ;
Das, Kalipada ;
Das, I. .
RSC ADVANCES, 2017, 7 (27) :16575-16580
[4]   Magnetocaloric effect and refrigerant capacity in charge-ordered manganites [J].
Bingham, N. S. ;
Phan, M. H. ;
Srikanth, H. ;
Torija, M. A. ;
Leighton, C. .
JOURNAL OF APPLIED PHYSICS, 2009, 106 (02)
[5]   Giant enhancement of magnetocaloric effect at room temperature by the formation of nanoparticle of La0.48Ca0.52MnO3 compound [J].
Das, Kalipada ;
Das, I. .
JOURNAL OF APPLIED PHYSICS, 2016, 119 (09)
[6]   Significant enhancement of magnetoresistance with the reduction of particle size in nanometer scale [J].
Das, Kalipada ;
Dasgupta, P. ;
Poddar, A. ;
Das, I. .
SCIENTIFIC REPORTS, 2016, 6
[7]   EQUILIBRIUM BEHAVIOR OF THE SPIN-GLASS ORDERED PHASE [J].
FISHER, DS ;
HUSE, DA .
PHYSICAL REVIEW B, 1988, 38 (01) :386-411
[8]  
Freitas R. S., 2001, PHYS REV B, V64
[9]   Recent developments in magnetocaloric materials [J].
Gschneidner, KA ;
Pecharsky, VK ;
Tsokol, AO .
REPORTS ON PROGRESS IN PHYSICS, 2005, 68 (06) :1479-1539
[10]   Magnetocaloric materials [J].
Gschneidner, KA ;
Pecharsky, VK .
ANNUAL REVIEW OF MATERIALS SCIENCE, 2000, 30 :387-429
1234