Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure

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	Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure
	Xiao, GJ; Wang, K; Zhu, L; Tan, X; Qiao, YC; Yang, K; Ma, YM; Liu, BB; Zheng, WT; Zou, B
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2015
卷号	119 期号:7 页码:3843—3848
关键词	TOPOLOGICAL INSULATORS STRUCTURAL STABILITY SINGLE-CRYSTAL NANOCRYSTALS NANOWIRES STRESS WURTZITE SUPERCONDUCTIVITY THERMOELECTRICITY TEMPERATURE
英文摘要	High-pressure research on nanostructured materials has been of considerable interest owing to the quantum confinement effect and intrinsic defects in the nanocrystals. Here, we report a pressure-induced reversible structural phase transition in nanostructured Bi(2)Te3 hierarchical architectures (HAs) that were prepared via a facile solution-phase method. Therein, distinct phases I-IV by respectively adopting crystal structures of rhombohedral (I), monoclinic (II, III), and cubic (IV) were experimentally identified with increasing pressure up to 20.2 GPa in a diamond anvil cell (DAC). It is worthwhile to notice that nanostructured Bi2Te3 HAs ultimately evolved into a fascinating Bi-Te substitutional nonmetallic alloy at pressure even as low as 15.0 GPa, approximately 10 GPa lower than that of the corresponding bulk counterpart. The synergistic effect involving large volume collapse and the unique one-dimensional nanostructures with intrinsic antisite defects was proposed to be responsible for the reduction of transition pressure that is contrary to the general model for most nanomaterials. Our findings may pave a potential pathway for developing future multifunctional nanoalloys that are composed of nonmetallic elements.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24545]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Xiao, GJ,Wang, K,Zhu, L,et al. Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(7):3843—3848.
APA	Xiao, GJ.,Wang, K.,Zhu, L.,Tan, X.,Qiao, YC.,...&Zou, B.(2015).Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure.JOURNAL OF PHYSICAL CHEMISTRY C,119(7),3843—3848.
MLA	Xiao, GJ,et al."Pressure-Induced Reversible Phase Transformation in Nanostructured Bi2Te3 with Reduced Transition Pressure".JOURNAL OF PHYSICAL CHEMISTRY C 119.7(2015):3843—3848.