Effect of magnetic order on nucleation in undercooled Co 80Pd20 melts

Shengyin Zhou; Rui Hu; Jinshan Li; Hui Chang; Hongchao Kou; Lian Zhou

doi:10.1063/1.4775676

Effect of magnetic order on nucleation in undercooled Co ₈₀Pd₂₀ melts

Shengyin Zhou, Rui Hu, Jinshan Li, Hui Chang, Hongchao Kou, Lian Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

Co₈₀Pd₂₀ melts have been undercooled below Curie temperature of the liquids (T_C^L) by employing the method of molten glass denucleation combined with cyclic superheating. The largest undercooling achieved is 465 K, which indicates that the nucleation temperature is below T_C^L more than 100 K and then the ferromagnetic liquid is obtained. The nucleation behavior is analyzed using the classical nucleation theory extended by magnetic contributions to the Gibbs free energy. The results reveal that the onset of magnetic order facilitates rather than stimulates nucleation. Consequently, Co₈₀Pd₂₀ melts can be undercooled below T_C^L.

Original language	English
Article number	022403
Journal	Applied Physics Letters
Volume	102
Issue number	2
DOIs	https://doi.org/10.1063/1.4775676
State	Published - 14 Jan 2013

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title = "Effect of magnetic order on nucleation in undercooled Co 80Pd20 melts",

abstract = "Co80Pd20 melts have been undercooled below Curie temperature of the liquids (TCL) by employing the method of molten glass denucleation combined with cyclic superheating. The largest undercooling achieved is 465 K, which indicates that the nucleation temperature is below TCL more than 100 K and then the ferromagnetic liquid is obtained. The nucleation behavior is analyzed using the classical nucleation theory extended by magnetic contributions to the Gibbs free energy. The results reveal that the onset of magnetic order facilitates rather than stimulates nucleation. Consequently, Co80Pd20 melts can be undercooled below TCL.",

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T1 - Effect of magnetic order on nucleation in undercooled Co 80Pd20 melts

AU - Zhou, Shengyin

AU - Hu, Rui

AU - Li, Jinshan

AU - Chang, Hui

AU - Kou, Hongchao

AU - Zhou, Lian

PY - 2013/1/14

Y1 - 2013/1/14

N2 - Co80Pd20 melts have been undercooled below Curie temperature of the liquids (TCL) by employing the method of molten glass denucleation combined with cyclic superheating. The largest undercooling achieved is 465 K, which indicates that the nucleation temperature is below TCL more than 100 K and then the ferromagnetic liquid is obtained. The nucleation behavior is analyzed using the classical nucleation theory extended by magnetic contributions to the Gibbs free energy. The results reveal that the onset of magnetic order facilitates rather than stimulates nucleation. Consequently, Co80Pd20 melts can be undercooled below TCL.

AB - Co80Pd20 melts have been undercooled below Curie temperature of the liquids (TCL) by employing the method of molten glass denucleation combined with cyclic superheating. The largest undercooling achieved is 465 K, which indicates that the nucleation temperature is below TCL more than 100 K and then the ferromagnetic liquid is obtained. The nucleation behavior is analyzed using the classical nucleation theory extended by magnetic contributions to the Gibbs free energy. The results reveal that the onset of magnetic order facilitates rather than stimulates nucleation. Consequently, Co80Pd20 melts can be undercooled below TCL.

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VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

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ER -

Effect of magnetic order on nucleation in undercooled Co ₈₀Pd₂₀ melts

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