Electronic and thermal properties of germanene and stanene by first-principles calculations
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- 作者：S. Jomehpour Zaveh ; M.R. Roknabadi ; roknabad@um.ac.ir" class="auth_mail" title="E-mail the corresponding author ; T. Morshedloo ; M. Modarresi
- 关键词：Germanene ; Stanene ; Phonon softening ; Specific heat ; Spin&ndash ; orbit interaction
- 刊名：Superlattices and Microstructures
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：91
- 期：Complete
- 页码：383-390
- 全文大小：694 K
文摘
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A DFT and DFPT study of germanene and stanene is presented.
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The intrinsic spin-orbit coupling opens electronic band gap, softens phonon and re-normalizes group velocity in ZA mode.
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The specific heat varies as T2 for low temperature limit.
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Due to the phonon gap between acoustic and optical branches both structures are applicable for nano-resonators.