Signature of Ferromagnetic Phase at Low Temperature in Low-Doped La0.88Ca0.12MnO3 Single Crystal

被引：2

作者：

Tank, Tejas M. ^{[1
,2
]}

Prajapat, M. ^{[1
]}

Rana, D. S. ^{[1
]}

Bodhaye, A. ^{[3
]}

Mukovskii, Ya M. ^{[4
]}

Sanyal, S. P. ^{[2
]}

机构：

[1] Indian Inst Sci Educ & Res, Dept Phys, Bhopal 462066, Madhya Pradesh, India

[2] Barkatullah Univ, Dept Phys, Bhopal 462026, India

[3] St Vincent Pallotti Coll Engn & Technol, Dept Phys, Nagpur 400002, Maharashtra, India

[4] Natl Sci & Technol Univ, MISIS, Leninskii Prospekt 4, Moscow 119049, Russia

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2019年 / 32卷 / 10期

关键词：

Manganites; Single crystal; Crystal growth; Magnetic properties; Specific heat; MAGNETORESISTANCE; TRANSPORT; MANGANITES; DIAGRAM; CHARGE;

D O I：

10.1007/s10948-019-5075-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The confirmation of ferromagnetism at low temperature in a low-doped manganites system is always debatable. It is for the first time, electrical, magnetic, and thermal properties have been measured for manganites single crystal of La0.88Ca0.12MnO3 by using a floating-zone method. The electrical resistivity shows a perceptible change of resistance at a low temperature which can be viewed as a signature of the ferromagnetic phase. The ferromagnetic phase of the investigated La0.88Ca0.12MnO3 single crystal with Curie temperature of T-C = 120 K which is in closed agreement with ac-susceptibility measurement. An analysis of the specific heat suggests the transition peak (T-P) coincides with the T-C and attains 1.2 J mol(-1) K at 116 K. The magnetoresistance (MR) and temperature coefficient of resistance (TCR) were found to be 69% and 10% respectively, which expands its subtle potential for applications in spintronics and thermistor.

引用

页码：3265 / 3272

页数：8

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