Phase stability and magnetic behavior of FeCrCoNiGe high-entropy alloy

We report an alternative FeCrCoNiGe magnetic material based on FeCrCoNi high-entropy alloy with Curie point far below the room temperature. Investigations are done using first-principles calculations and key experimental measurements. Results show that the equimolar FeCrCoNiGe system is decomposed i...

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Published inApplied physics letters Vol. 107; no. 25
Main Authors Huang, Shuo, Vida, Ádám, Molnár, Dávid, Kádas, Krisztina, Varga, Lajos Károly, Holmström, Erik, Vitos, Levente
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 21.12.2015
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Abstract We report an alternative FeCrCoNiGe magnetic material based on FeCrCoNi high-entropy alloy with Curie point far below the room temperature. Investigations are done using first-principles calculations and key experimental measurements. Results show that the equimolar FeCrCoNiGe system is decomposed into a mixture of face-centered cubic and body-centered cubic solid solution phases. The increased stability of the ferromagnetic order in the as-cast FeCrCoNiGe composite, with measured Curie temperature of 640 K, is explained using the exchange interactions.
AbstractList We report an alternative FeCrCoNiGe magnetic material based on FeCrCoNi high-entropy alloy with Curie point far below the room temperature. Investigations are done using first-principles calculations and key experimental measurements. Results show that the equimolar FeCrCoNiGe system is decomposed into a mixture of face-centered cubic and body-centered cubic solid solution phases. The increased stability of the ferromagnetic order in the as-cast FeCrCoNiGe composite, with measured Curie temperature of 640 K, is explained using the exchange interactions.
Author Vitos, Levente
Huang, Shuo
Vida, Ádám
Molnár, Dávid
Holmström, Erik
Varga, Lajos Károly
Kádas, Krisztina
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  surname: Kádas
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  givenname: Lajos Károly
  surname: Varga
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  fullname: Holmström, Erik
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  givenname: Levente
  surname: Vitos
  fullname: Vitos, Levente
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Snippet We report an alternative FeCrCoNiGe magnetic material based on FeCrCoNi high-entropy alloy with Curie point far below the room temperature. Investigations are...
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SubjectTerms Applied physics
Curie temperature
Ferromagnetism
First principles
High entropy alloys
Magnetic materials
Magnetic properties
Phase stability
Solid solutions
Title Phase stability and magnetic behavior of FeCrCoNiGe high-entropy alloy
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