Vibration-Driven Self-Doping of Dangling-Bond Wires on Si(553)-Au Surfaces

被引：16

作者：

Braun, C. ^{[1
]}

Neufeld, S. ^{[1
]}

Gerstmann, U. ^{[1
]}

Sanna, S. ^{[2
,3
]}

Plaickner, J. ^{[4
]}

Speiser, E. ^{[4
]}

Esser, N. ^{[4
,5
]}

Schmidt, W. G. ^{[1
]}

机构：

[1] Univ Paderborn, Lehrstuhl Theoret Mat Phys, D-33095 Paderborn, Germany

[2] Justus Liebig Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

[3] Justus Liebig Univ Giessen, Ctr Mat Res, D-35392 Giessen, Germany

[4] Leibniz Inst Analyt Wissensch ISAS eV, Schwarzschildstr 8, D-12489 Berlin, Germany

[5] Tech Univ Berlin, Inst Festkorperphys, Hardenbergstr 36, D-10623 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 14期

关键词：

CHAINS;

D O I：

10.1103/PhysRevLett.124.146802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Density-functional theory is used to explore the Si(553)-Au surface dynamics. Our study (i) reveals a complex two-stage order-disorder phase transition where with rising temperature first the x3 order along the Si step edges and, subsequently, the x2 order of the Au chains is lost, (ii) identifies the transient modification of the electron chemical potential during soft Au chain vibrations as instrumental for disorder at the step edge, and (iii) shows that the transition leads to a self-doping of the Si dangling-bond wire at the step edge. The calculations are corroborated by Raman measurements of surface phonon modes and explain previous electron diffraction, scanning tunneling microscopy, and surface transport data.

引用

页数：5

共 35 条

[1] Coexistence of two different peierls distortions within an atomic scale wire: Si(553)-Au [J].

Ahn, JR ;

Kang, PG ;

Ryang, KD ;

Yeom, HW .

PHYSICAL REVIEW LETTERS, 2005, 95 (19)

[2] Electrical current through individual pairs of phosphorus donor atoms and silicon dangling bonds [J].

Ambal, K. ;

Rahe, P. ;

Payne, A. ;

Slinkman, J. ;

Williams, C. C. ;

Boehme, C. .

SCIENTIFIC REPORTS, 2016, 6

[3] Parity breaking in a double atomic chain system [J].

Aulbach, J. ;

Erwin, S. C. ;

Kemmer, J. ;

Bode, M. ;

Schaefer, J. ;

Claessen, R. .

PHYSICAL REVIEW B, 2017, 96 (08)

[4] Spin Chains and Electron Transfer at Stepped Silicon Surfaces [J].

Aulbach, J. ;

Erwin, S. C. ;

Claessen, R. ;

Schaefer, J. .

NANO LETTERS, 2016, 16 (04) :2698-2704

[5] Evidence for Long-Range Spin Order Instead of a Peierls Transition in Si(553)-Au Chains [J].

Aulbach, J. ;

Schaefer, J. ;

Erwin, S. C. ;

Meyer, S. ;

Loho, C. ;

Settelein, J. ;

Claessen, R. .

PHYSICAL REVIEW LETTERS, 2013, 111 (13)

[6] Quantum Transport in Gated Dangling-Bond Atomic Wires [J].

Bohloul, S. ;

Shi, Q. ;

Wolkow, Robert A. ;

Guo, Hong .

NANO LETTERS, 2017, 17 (01) :322-327

[7] Spin pairing versus spin chains at Si(553)-Au surfaces [J].

Braun, C. ;

Gerstmann, U. ;

Schmidt, W. G. .

PHYSICAL REVIEW B, 2018, 98 (12)

[8] Fractional band filling in an atomic chain structure [J].

Crain, JN ;

Kirakosian, A ;

Altmann, KN ;

Bromberger, C ;

Erwin, SC ;

McChesney, JL ;

Lin, JL ;

Himpsel, FJ .

PHYSICAL REVIEW LETTERS, 2003, 90 (17) :4-176805

[9] Tuning the conductivity along atomic chains by selective chemisorption [J].

Edler, F. ;

Miccoli, I. ;

Stoeckmann, J. P. ;

Pfnuer, H. ;

Braun, C. ;

Neufeld, S. ;

Sanna, S. ;

Schmidt, W. G. ;

Tegenkamp, C. .

PHYSICAL REVIEW B, 2017, 95 (12)

[10] Charge-transfer transition in Au-induced quantum wires on Si(553) [J].

Edler, Frederik ;

Miccoli, Ilio ;

Pfnuer, Herbert ;

Tegenkamp, Christoph .

PHYSICAL REVIEW B, 2019, 100 (04)

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