NDLI: Magnetocaloric Properties and Structure of the Gd 5 Ge 1.8 Si 1.8 Sn 0.4 Compund

Content Provider	IEEE Xplore Digital Library
Author	Provenzano, V. Tiebang Zhang Shapiro, A. Chen, Y.G. Shull, R.D.
Copyright Year	1965
Abstract	In this study the magnetic properties and the structure of Gd₅Ge_1.8Si_1.8Sn_0.4 alloy were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and magnetometry. The concentration of the Sn-doping in this study is four times that used in previous studies examining the magnetocaloric properties of the Gd₅Ge₂Si₂ compound doped with different metal additives. In the earlier studies it was shown the addition of about one atom percent of either Fe, Cu, Co, Ga, Mn, or Al nearly eliminated the large hysteresis losses present in the undoped Gd₅Ge₂Si₂ compound between 270 K and 300 K. Also, these metal additives affected the characteristics DeltaS_m versus T peak, resulting in a significant increase in the refrigeration capacity of the material, if the hysteresis losses are taken into account. By contrast, the same amount of either Sn or Bi had much smaller effects on both the hysteresis losses and the characteristics of the DeltaS_m versus T peak. In this study, a larger amount of Sn doping had a limited effect on the hysteresis losses and characteristics of the DeltaS_m versus T peak of Gd₅Ge₂Si₂ . But, most importantly, it resulted in a different microstructure compared to the compound with smaller Sn addition. The implications of the larger Sn doping on both the magnetocaloric properties and structure of the Gd₅Ge₂Si₂ compound are discussed.
Sponsorship	IEEE Magnetics Society
Starting Page	3048
Ending Page	3051
Page Count	4
File Size	641424
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic properties Tin Magnetic hysteresis Scanning electron microscopy Additives Doping Germanium alloys Silicon alloys Powders X-ray diffraction Sn-doped GdGeSi compound Field-induced transition hysteresis losses magnetocaloric properties
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Microstructural Changes and Hysteresis Losses in Fe-Doped Gd$_{5}$ Si$_{2}$ Ge$_{2}$

Effect of Co, Ti and Cr Additions on Microstructure, Magnetic Properties and Corrosion Resistance of Magnetocaloric Gd-Ge-Si Alloys

Critical current densities and magnetic hysteresis losses in submicron filament bronze-processed Nb/sub 3/Sn wires

Magnetic entropy change in the Ge-rich alloys Gd-Si-Ge

Current–Voltage Characteristics of GeSn/Ge Heterojunction Diodes Grown by Molecular Beam Epitaxy

Magnetocaloric properties of Mn/sub 5/Sn/sub 3-x/Ga/sub x/ alloys

Improvement of magnetocaloric properties of Gd-Ge-Si alloys by alloying with iron

Structural and Magnetocaloric Properties of MnFeP_1−xSi_x Compounds Prepared by Spark Plasma Sintering

Drift hole mobility in strained and unstrained doped Si/sub 1-x/Ge/sub x/ alloys

Magnetocaloric Properties and Structure of the Gd 5 Ge 1.8 Si 1.8 Sn 0.4 Compund

Similar Documents

Microstructural Changes and Hysteresis Losses in Fe-Doped Gd$_{5}$ Si$_{2}$ Ge$_{2}$

Effect of Co, Ti and Cr Additions on Microstructure, Magnetic Properties and Corrosion Resistance of Magnetocaloric Gd-Ge-Si Alloys

Critical current densities and magnetic hysteresis losses in submicron filament bronze-processed Nb/sub 3/Sn wires

Magnetic entropy change in the Ge-rich alloys Gd-Si-Ge

Current–Voltage Characteristics of GeSn/Ge Heterojunction Diodes Grown by Molecular Beam Epitaxy

Magnetocaloric properties of Mn/sub 5/Sn/sub 3-x/Ga/sub x/ alloys

Improvement of magnetocaloric properties of Gd-Ge-Si alloys by alloying with iron

Structural and Magnetocaloric Properties of MnFeP1−xSix Compounds Prepared by Spark Plasma Sintering

Drift hole mobility in strained and unstrained doped Si/sub 1-x/Ge/sub x/ alloys

Magnetocaloric Properties and Structure of the Gd 5 Ge 1.8 Si 1.8 Sn 0.4 Compund

Structural and Magnetocaloric Properties of MnFeP_1−xSi_x Compounds Prepared by Spark Plasma Sintering