Characteristics of charge density waves on the surfaces of quasi-one-dimensional charge-transfer complex layered organic crystals
文献类型：期刊论文
| 作者 | Lin, Feng1; Huang, Xiaoming3; Qu, Shengchun4; Fang, Zheyu1; Huang, Shan1; Song, Wentong1; Zhu, Xing1,2; Liu, Zhongfan3 |
| 刊名 | Physical review b
 |
| 出版日期 | 2011-03-31 |
| 卷号 | 83期号:12页码:8 |
| ISSN号 | 1098-0121 |
| DOI | 10.1103/physrevb.83.125434 |
| 通讯作者 | Lin, feng() |
| 英文摘要 | We performed scanning tunneling microscope (stm) studies to observe the surface electronic structure of the following semiconducting charge-transfer complexes: dipropylamine-tetracyanoquinodimethane [dpa(tcnq)(2)], triethylammonium [tea (tcnq)(2)], and n-ethylmorpholinium [hem(tcnq)(2)], which all possess the molecularly flat bc surface terminated predominately with the quasi-one-dimensional (1d) tcnq(-0.5) anion chains or the corresponding dpa(+), tea(+), and hem+ cations contributing a lesser fraction. on the bc surfaces terminated with tcnq(-0.5) anions for all crystals, the 4k(f)[dpa(tcnq)(2)] or 2k(f) [tea(tcnq)(2) and hem(tcnq)(2)] charge density wave (cdw) driven by the spin-peierls or peierls instability for the quasi-1d tcnq(-0.5) chains, respectively, which occur already within the bulk, were probed by use of stm on the crystal surfaces. in that the surface lattice constants obtained from cdw are in good agreement with the bulk ones obtained by x-ray diffraction, such cdws are commensurate. this modulation of the electric structure is so distinct that the geometric corrugation of individual tcnq anions was hardly traced during our stm measurements. on the bc surfaces terminated with dpa(+), tea(+), and hem+ cations, the stm images with submolecular resolution represent the geometric corrugation of individual molecular cations, and the surface lattice constants obtained deviate greatly from that of the x-ray crystal structures, indicating self-reassembling of the surface cations. |
| WOS关键词 | SCANNING-TUNNELING-MICROSCOPY ; MOLECULAR CONDUCTORS ; PHASE-TRANSITION ; TETRACYANOQUINODIMETHANE ; (EDO-TTF)(2)PF6 ; DERIVATIVES ; TTF |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000288998600009 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428234 |
| 专题 | 半导体研究所 |
| 通讯作者 | Lin, Feng |
| 作者单位 | 1.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 2.Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China 3.Peking Univ, BNLMS, Ctr Nanochem,Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Feng,Huang, Xiaoming,Qu, Shengchun,et al. Characteristics of charge density waves on the surfaces of quasi-one-dimensional charge-transfer complex layered organic crystals[J]. Physical review b,2011,83(12):8. |
| APA | Lin, Feng.,Huang, Xiaoming.,Qu, Shengchun.,Fang, Zheyu.,Huang, Shan.,...&Liu, Zhongfan.(2011).Characteristics of charge density waves on the surfaces of quasi-one-dimensional charge-transfer complex layered organic crystals.Physical review b,83(12),8. |
| MLA | Lin, Feng,et al."Characteristics of charge density waves on the surfaces of quasi-one-dimensional charge-transfer complex layered organic crystals".Physical review b 83.12(2011):8. |
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来源：半导体研究所
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