Please use this identifier to cite or link to this item: https://has.hcu.ac.th/jspui/handle/123456789/1964
Title: Pressure-induced lattice-dynamical stability and superconductivity of ternary pentahydride MgNiH5
Authors: Prutthipong Tsuppayakorn-aek
Prayoonsak Pluengphon
Wiwittawin Sukmas
Burapat Inceesungvorn
Rajeev Ahuja
Thiti Bovornratanaraks
Wei Luo
พฤทธิพงษ์ ทรัพยากรเอก
ประยูรศักดิ์ เปลื้องผล
วิวิธวินท์ สุขมาศ
บูรภัทร์ อินทรีย์สังวร
ธิติ บวรรัตนารักษ์
Chulalongkorn University. Faculty of Science
Huachiew Chalermprakiet University. Faculty of Science and Technology
Chulalongkorn University. Faculty of Science
Chiang Mai University. Faculty of Science
Uppsala University. Department of Physics and Astronomy
Chiang Mai University. Faculty of Science
Uppsala University. Department of Physics and Astronomy
Keywords: แมกนีเซียมนิกเกิลไฮไดรด์
Magnesium nickel hydride
ตัวนำไฟฟ้ายิ่งยวดอุณหภูมิสูง
Superconductivity
ความดันสูง (วิทยาศาสตร์)
High pressure (Science)
โครงสร้างอิเล็กตรอน
Electronic structure
Issue Date: 2022
Citation: International Journal of Energy Research 05 September 2022
Abstract: We predict the existence of ternary pentahydride MgNiH5, adopting a hexagonal structure with a space group P63/mmc, at high pressure. Typically, the clarity of structural-phase stability could be demonstrated by thermodynamical and dynamical stabilities. Herein, we introduce a critical temperature (Tc) superconductivity of the ternary pentahydride, based on the isotropic Éliashberg equation. The Tc is estimated by directly solving the Allen-Dynes equation, with a remarkable value of Tc at 25.6 K. Under the compressing pressure from 100 to 300 GPa, the Tc of MgNiH5 is determined by means of the phonon-mediated superconductivity, arising particularly from a magnitude of partial electron-phonon coupling. Our calculation paves the way for achieving a ratio and a Tc superconductivity in the family of ternary polyhydride.
Description: สามารถเข้าถึงบทความฉบับเต็มได้ที่ https://onlinelibrary.wiley.com/doi/epdf/10.1002/er.8705
URI: https://has.hcu.ac.th/jspui/handle/123456789/1964
Appears in Collections:Science and Technology - Artical Journals

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