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Size and shape dependent order–disorder phase transition of Co–Pt nanowires

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Size and shape dependent order–disorder phase transition of Co–Pt nanowires
นักวิจัย : Ouyang, Bin , Qi, Weihong , Liu, Chenze , Wang, Xing , Wei, Lanying , Sun, Changqing
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Ouyang, B., Qi, W., Liu, C., Wang, X., Wei, L.,& Sun, C. (2012). Size and shape dependent order–disorder phase transition of Co–Pt nanowires. Computational materials science, 63286-291. , http://hdl.handle.net/10220/13120 , http://dx.doi.org/10.1016/j.commatsci.2012.06.017
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Computational materials science
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Monte Carlo simulation of the order–disorder transition revealed that the transition temperature of Co–Pt nanowires increases with wire diameter, approaching the bulk value if the size is large enough. The transition temperature is affected by the shape of cross-section, though the shape effect is less significant than the size effect. It is showed that the rise of transition temperature in nanowires is largely due to the decrease of surface area compared with nanoparticles. The phase separation and tetragonalization are discussed by introducing mixing parameter and asphericity parameter. It is also found that the order–disorder transition starts from the surface and then to the core, indicating that the order–disorder transition of nanowires is a surface-dominant phenomenon, governed by the atomic under coordination.

บรรณานุกรม :
Ouyang, Bin , Qi, Weihong , Liu, Chenze , Wang, Xing , Wei, Lanying , Sun, Changqing . (2555). Size and shape dependent order–disorder phase transition of Co–Pt nanowires.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ouyang, Bin , Qi, Weihong , Liu, Chenze , Wang, Xing , Wei, Lanying , Sun, Changqing . 2555. "Size and shape dependent order–disorder phase transition of Co–Pt nanowires".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ouyang, Bin , Qi, Weihong , Liu, Chenze , Wang, Xing , Wei, Lanying , Sun, Changqing . "Size and shape dependent order–disorder phase transition of Co–Pt nanowires."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Ouyang, Bin , Qi, Weihong , Liu, Chenze , Wang, Xing , Wei, Lanying , Sun, Changqing . Size and shape dependent order–disorder phase transition of Co–Pt nanowires. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.