Effect of Ni substitution on the structural, magnetic, and thermodynamic properties in Gd2−xNixIn(0≤x≤1) intermetallic compounds: An experimental and theoretical study

Sanjay Sharma; Shilpa Singh; Akhilesh Kumar Patel; Sanjeev K. Gupta; P. N. Gajjar; Pramod Kumar

doi:10.1016/j.intermet.2022.107743

Effect of Ni substitution on the structural, magnetic, and thermodynamic properties in Gd_2−xNi_xIn(0≤x≤1) intermetallic compounds: An experimental and theoretical study

Sanjay Sharma
, Shilpa Singh
, Akhilesh Kumar Patel
, Sanjeev K. Gupta
, P. N. Gajjar
, Pramod Kumar

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this article, we report the various changes observed and studied experimentally and theoretically in the structural, magnetic, and thermodynamic properties of the Gd_2−xNi_xIn(0≤x≤1) intermetallic compounds owing to the changes in the composition of Ni substitution. The compound Gd_1.6Ni_0.4In have many successive transitions with T_N≈102K, T_t≈145K, and T_C≈86K,190K which are of second-order and seem to be a mixture of phase transitions of compounds Gd₂In, GdNiIn, and some other compounds from the RENiIn (RE = Rare earth) family. Similar transitions have also been observed with smaller magnetic moments in other compounds from the system. The curves of Curie-Weiss temperature (θ_P) and effective magnetic moment (μ_eff) for the changes in Ni composition show declination at specific values. The critical analysis of the compounds with values of x=0.4,0.6 finds it difficult to distinguish among the best fit theoretical models of critical exponents. Theoretical analysis using density functional theory is also in good agreement with the experimental findings confirming that Gd is the major factor of magnetism in these compounds.

Original language	English
Article number	107743
Journal	Intermetallics
Volume	151
DOIs	https://doi.org/10.1016/j.intermet.2022.107743
State	Published - Dec 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd

Funding

The authors acknowledge the Spintronics and Magnetic Materials Laboratory, IIIT Allahabad, Magnetic Materials Laboratory, Department of Physics, IIT Bombay and Prof. A. K. Nigam from the Tata Institute of Fundamental Research, Mumbai for the preparation, characterization, and measurements of the samples. The acknowledgement also goes to the Computational Materials and Nanoscience Group, Department of Physics and Electronics, St. Xavier's College, Ahmedabad and the Department of Materials Science and Engineering, Faculty of Engineering, Tel Aviv University, Israel for the access to computation facilities. Sanjay Sharma thanks MHRD , India for dispensing the financial support as Senior Research Fellowship. Author P. Kumar thanks DST- SERB , Govt. of India for providing financial support for this work. The authors acknowledge the Spintronics and Magnetic Materials Laboratory, IIIT Allahabad, Magnetic Materials Laboratory, Department of Physics, IIT Bombay and Prof. A. K. Nigam from the Tata Institute of Fundamental Research, Mumbai for the preparation, characterization, and measurements of the samples. The acknowledgement also goes to the Computational Materials and Nanoscience Group, Department of Physics and Electronics, St. Xavier's College, Ahmedabad and the Department of Materials Science and Engineering, Faculty of Engineering, Tel Aviv University, Israel for the access to computation facilities. Sanjay Sharma thanks MHRD, India for dispensing the financial support as Senior Research Fellowship. Author P. Kumar thanks DST-SERB, Govt. of India for providing financial support for this work.

Funders
Department of Materials Science and Engineering, Faculty of Engineering, Tel Aviv University
Spintronics and Magnetic Materials Laboratory
Tata Institute of Fundamental Research
Department of Science and Technology, Ministry of Science and Technology, India
Ministry of Education, India

Keywords

Alloys
Density functional theory
Intermetallics
Magnetic properties
Phase transition
Rare-earth

Access to Document

10.1016/j.intermet.2022.107743

Cite this

@article{24a244d926c54ad8a89bbbca5f654097,

title = "Effect of Ni substitution on the structural, magnetic, and thermodynamic properties in Gd2−xNixIn(0≤x≤1) intermetallic compounds: An experimental and theoretical study",

abstract = "In this article, we report the various changes observed and studied experimentally and theoretically in the structural, magnetic, and thermodynamic properties of the Gd2−xNixIn(0≤x≤1) intermetallic compounds owing to the changes in the composition of Ni substitution. The compound Gd1.6Ni0.4In have many successive transitions with TN≈102K, Tt≈145K, and TC≈86K,190K which are of second-order and seem to be a mixture of phase transitions of compounds Gd2In, GdNiIn, and some other compounds from the RENiIn (RE = Rare earth) family. Similar transitions have also been observed with smaller magnetic moments in other compounds from the system. The curves of Curie-Weiss temperature (θP) and effective magnetic moment (μeff) for the changes in Ni composition show declination at specific values. The critical analysis of the compounds with values of x=0.4,0.6 finds it difficult to distinguish among the best fit theoretical models of critical exponents. Theoretical analysis using density functional theory is also in good agreement with the experimental findings confirming that Gd is the major factor of magnetism in these compounds.",

keywords = "Alloys, Density functional theory, Intermetallics, Magnetic properties, Phase transition, Rare-earth",

author = "Sanjay Sharma and Shilpa Singh and Patel, \{Akhilesh Kumar\} and Gupta, \{Sanjeev K.\} and Gajjar, \{P. N.\} and Pramod Kumar",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = dec,

doi = "10.1016/j.intermet.2022.107743",

language = "אנגלית",

volume = "151",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Effect of Ni substitution on the structural, magnetic, and thermodynamic properties in Gd2−xNixIn(0≤x≤1) intermetallic compounds

T2 - An experimental and theoretical study

AU - Sharma, Sanjay

AU - Singh, Shilpa

AU - Patel, Akhilesh Kumar

AU - Gupta, Sanjeev K.

AU - Gajjar, P. N.

AU - Kumar, Pramod

PY - 2022/12

Y1 - 2022/12

N2 - In this article, we report the various changes observed and studied experimentally and theoretically in the structural, magnetic, and thermodynamic properties of the Gd2−xNixIn(0≤x≤1) intermetallic compounds owing to the changes in the composition of Ni substitution. The compound Gd1.6Ni0.4In have many successive transitions with TN≈102K, Tt≈145K, and TC≈86K,190K which are of second-order and seem to be a mixture of phase transitions of compounds Gd2In, GdNiIn, and some other compounds from the RENiIn (RE = Rare earth) family. Similar transitions have also been observed with smaller magnetic moments in other compounds from the system. The curves of Curie-Weiss temperature (θP) and effective magnetic moment (μeff) for the changes in Ni composition show declination at specific values. The critical analysis of the compounds with values of x=0.4,0.6 finds it difficult to distinguish among the best fit theoretical models of critical exponents. Theoretical analysis using density functional theory is also in good agreement with the experimental findings confirming that Gd is the major factor of magnetism in these compounds.

AB - In this article, we report the various changes observed and studied experimentally and theoretically in the structural, magnetic, and thermodynamic properties of the Gd2−xNixIn(0≤x≤1) intermetallic compounds owing to the changes in the composition of Ni substitution. The compound Gd1.6Ni0.4In have many successive transitions with TN≈102K, Tt≈145K, and TC≈86K,190K which are of second-order and seem to be a mixture of phase transitions of compounds Gd2In, GdNiIn, and some other compounds from the RENiIn (RE = Rare earth) family. Similar transitions have also been observed with smaller magnetic moments in other compounds from the system. The curves of Curie-Weiss temperature (θP) and effective magnetic moment (μeff) for the changes in Ni composition show declination at specific values. The critical analysis of the compounds with values of x=0.4,0.6 finds it difficult to distinguish among the best fit theoretical models of critical exponents. Theoretical analysis using density functional theory is also in good agreement with the experimental findings confirming that Gd is the major factor of magnetism in these compounds.

KW - Alloys

KW - Density functional theory

KW - Intermetallics

KW - Magnetic properties

KW - Phase transition

KW - Rare-earth

UR - https://www.scopus.com/pages/publications/85139350564

U2 - 10.1016/j.intermet.2022.107743

DO - 10.1016/j.intermet.2022.107743

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85139350564

SN - 0966-9795

VL - 151

JO - Intermetallics

JF - Intermetallics

M1 - 107743

ER -