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Title: Magnetocaloric effect in the vicinity of the magnetic phase transition in NdCo2–xFex compounds

Abstract

In the present paper, the magnetocaloric effect (MCE) of NdCo2-xFex (x = 0, 0.2, 0.4, 0.6) compounds was investigated by magnetization measurements. Here, the temperature-dependent high-resolution synchrotron x-ray diffraction study shows a magnetostructural transition from the paramagnetic cubic phase to the ferromagnetic tetragonal phase below their Curie temperatures. Differential scanning calorimetry analysis shows the absence of thermal hysteresis, indicating the second-order nature of the magnetostructural phase transition in these compounds. The maximum values of magnetic entropy change (ΔSM) and wide operating temperature (OT) are obtained under a field change of 5 T, which are 7.33 Jkg-1K-1, 6.45 Jkg-1K-1, 5.71 Jkg-1K-1, 4.70 Jkg-1K-1 and 78 K, 82 K, 85 K, 92 K for x = 0, 0.2, 0.4, and 0.6, respectively. The corresponding values of relative cooling power (RCP) are 529.96 Jkg-1, 497.25 Jkg-1, 470.55 Jkg-1, and 428.31 Jkg-1. The observed wide OT range and large RCP values are comparable with Gd, Gd5Ge2Si2, and some rare-earth-based giant magnetocaloric materials, making this series of compounds suitable for magnetic refrigeration.

Authors:
 [1];  [1]; ORCiD logo [2];  [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [3]
  1. Xi'an Jiaotong Univ., Shaanxi (China)
  2. Univ. of Agriculture, Faisalabad (Pakistan)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); China Postdoctoral Science Foundation; National Science Basic Research Plan
OSTI Identifier:
1756437
Grant/Contract Number:  
AC02-06CH11357; 51850410517; 51701149; 51601140; 51801145; 2018M643612; 2018JM5168
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 101; Journal Issue: 21; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Murtaza, Adil, Zuo, Wenliang, Yaseen, Muhammad, Ghani, Awais, Saeed, Azhar, Hao, Chunxi, Mi, Jingwen, Li, Yebei, Chang, Tieyan, Wang, Liqun, Zhou, Chao, Wang, Yu, Zhang, Yin, Yang, Sen, and Ren, Yang. Magnetocaloric effect in the vicinity of the magnetic phase transition in NdCo2–xFex compounds. United States: N. p., 2020. Web. doi:10.1103/physrevb.101.214427.
Murtaza, Adil, Zuo, Wenliang, Yaseen, Muhammad, Ghani, Awais, Saeed, Azhar, Hao, Chunxi, Mi, Jingwen, Li, Yebei, Chang, Tieyan, Wang, Liqun, Zhou, Chao, Wang, Yu, Zhang, Yin, Yang, Sen, & Ren, Yang. Magnetocaloric effect in the vicinity of the magnetic phase transition in NdCo2–xFex compounds. United States. https://doi.org/10.1103/physrevb.101.214427
Murtaza, Adil, Zuo, Wenliang, Yaseen, Muhammad, Ghani, Awais, Saeed, Azhar, Hao, Chunxi, Mi, Jingwen, Li, Yebei, Chang, Tieyan, Wang, Liqun, Zhou, Chao, Wang, Yu, Zhang, Yin, Yang, Sen, and Ren, Yang. Wed . "Magnetocaloric effect in the vicinity of the magnetic phase transition in NdCo2–xFex compounds". United States. https://doi.org/10.1103/physrevb.101.214427. https://www.osti.gov/servlets/purl/1756437.
@article{osti_1756437,
title = {Magnetocaloric effect in the vicinity of the magnetic phase transition in NdCo2–xFex compounds},
author = {Murtaza, Adil and Zuo, Wenliang and Yaseen, Muhammad and Ghani, Awais and Saeed, Azhar and Hao, Chunxi and Mi, Jingwen and Li, Yebei and Chang, Tieyan and Wang, Liqun and Zhou, Chao and Wang, Yu and Zhang, Yin and Yang, Sen and Ren, Yang},
abstractNote = {In the present paper, the magnetocaloric effect (MCE) of NdCo2-xFex (x = 0, 0.2, 0.4, 0.6) compounds was investigated by magnetization measurements. Here, the temperature-dependent high-resolution synchrotron x-ray diffraction study shows a magnetostructural transition from the paramagnetic cubic phase to the ferromagnetic tetragonal phase below their Curie temperatures. Differential scanning calorimetry analysis shows the absence of thermal hysteresis, indicating the second-order nature of the magnetostructural phase transition in these compounds. The maximum values of magnetic entropy change (ΔSM) and wide operating temperature (OT) are obtained under a field change of 5 T, which are 7.33 Jkg-1K-1, 6.45 Jkg-1K-1, 5.71 Jkg-1K-1, 4.70 Jkg-1K-1 and 78 K, 82 K, 85 K, 92 K for x = 0, 0.2, 0.4, and 0.6, respectively. The corresponding values of relative cooling power (RCP) are 529.96 Jkg-1, 497.25 Jkg-1, 470.55 Jkg-1, and 428.31 Jkg-1. The observed wide OT range and large RCP values are comparable with Gd, Gd5Ge2Si2, and some rare-earth-based giant magnetocaloric materials, making this series of compounds suitable for magnetic refrigeration.},
doi = {10.1103/physrevb.101.214427},
journal = {Physical Review B},
number = 21,
volume = 101,
place = {United States},
year = {Wed Jun 17 00:00:00 EDT 2020},
month = {Wed Jun 17 00:00:00 EDT 2020}
}

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