NDLI: Large magnetocaloric effects and Landau coefficients of itinerant electron metamagnetic La(Fe/sub x/Si/sub 1-x/)/sub 13/ compounds

Content Provider	IEEE Xplore Digital Library
Author	Fujita, A. Fukamichi, K.
Copyright Year	1965
Abstract	By fitting magnetization curves on the basis of the Landau expansion, the magnetocaloric effects in itinerant electron metamagnetic La(Fe/sub x/Si/sub 1-x/)/sub 13/ compounds have been investigated. Temperature dependence of the magnetic entropy change /spl Delta/S/sub m/ is represented by thermal variation of the Gibbs energy calculated from the fitted Landau coefficients. A relation between the magnitude of /spl Delta/S/sub m/ and the fourth-order Landau coefficient at 0 K is described. It is also demonstrated that the energy barrier between the ferromagnetic and the paramagnetic states is easily overcome by thermal activation. Accordingly, the adiabatic process is slightly influenced by the energy barrier and the adiabatic temperature change comes close to an ideal value.
Sponsorship	IEEE Magnetics Society
Starting Page	3490
Ending Page	3492
Page Count	3
File Size	129651
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrons Superconducting magnets Temperature dependence Entropy Magnetization Refrigeration Fluctuations Curve fitting Energy barrier Cooling magnetocaloric effects Itinerant electron metamagnetic transition Landau expansion
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

Control of large magnetocaloric effects and hysteresis of La/sub 1-z/Ce/sub z/(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ compounds

Control of Magnetocaloric Effects by Partial Substitution in Itinerant-Electron Metamagnetic $hbox{La}{(hbox{Fe}_{rm x}hbox{Si}_{1-{rm x}})}_{13}$ for Application to Magnetic Refrigeration

Influence of Homogenization of Microstructual Composition on Hydrogen Absorption into ${rm La}{({rm Fe}_{rm x}{rm Si}_{1-{rm x}})}_{13}$ Magnetic Refrigerants

Magnetocaloric Effect and Magnetoresistance Due to Itinerant Electron Metamagnetic Transition in ${rm Co}({rm S}_{1-x}{rm Se}_{x})_{2}$

Influence of Supercooling on the Thermally Induced First-Order Magnetic Transition in Magnetocaloric Compound La(Fe$_{0.88}$Si$_{0.12}$)$_{13}$

Influence of H and Extra La on Magnetocaloric Effect of La$_{0.5 + x}$ Pr$_{0.5}$ Fe$_{11.4}$ Si$_{1.6}$ Melt-Spun Ribbons

Rapidly Solidified La(Fe$_1 - x$Si$_x$)$_13$Alloys and Their Magnetocaloric Properties

Influence of Demagnetization Effect on the Kinetics of the Itinerant Electron Metamagnetic Transition in Magnetic Refrigerant ${rm La}{({rm Fe}_{0.88}{rm Si}_{0.12})}_{13}$

Large magnetocaloric effects in NaZn13-type La(FexSi1−x)13 compounds and their hydrides composed of icosahedral clusters

Large magnetocaloric effects and Landau coefficients of itinerant electron metamagnetic La(Fe/sub x/Si/sub 1-x/)/sub 13/ compounds

Similar Documents

Control of large magnetocaloric effects and hysteresis of La/sub 1-z/Ce/sub z/(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ compounds

Control of Magnetocaloric Effects by Partial Substitution in Itinerant-Electron Metamagnetic $hbox{La}{(hbox{Fe}_{rm x}hbox{Si}_{1-{rm x}})}_{13}$ for Application to Magnetic Refrigeration

Influence of Homogenization of Microstructual Composition on Hydrogen Absorption into ${rm La}{({rm Fe}_{rm x}{rm Si}_{1-{rm x}})}_{13}$ Magnetic Refrigerants

Magnetocaloric Effect and Magnetoresistance Due to Itinerant Electron Metamagnetic Transition in ${rm Co}({rm S}_{1-x}{rm Se}_{x})_{2}$

Influence of Supercooling on the Thermally Induced First-Order Magnetic Transition in Magnetocaloric Compound La(Fe$_{0.88}$Si$_{0.12}$)$_{13}$

Influence of H and Extra La on Magnetocaloric Effect of La$_{0.5 + x}$ Pr$_{0.5}$ Fe$_{11.4}$ Si$_{1.6}$ Melt-Spun Ribbons

Rapidly Solidified La(Fe$_1 - x$Si$_x$)$_13$Alloys and Their Magnetocaloric Properties

Influence of Demagnetization Effect on the Kinetics of the Itinerant Electron Metamagnetic Transition in Magnetic Refrigerant ${rm La}{({rm Fe}_{0.88}{rm Si}_{0.12})}_{13}$

Large magnetocaloric effects in NaZn13-type La(FexSi1−x)13 compounds and their hydrides composed of icosahedral clusters

Large magnetocaloric effects and Landau coefficients of itinerant electron metamagnetic La(Fe/sub x/Si/sub 1-x/)/sub 13/ compounds