Stochastic switching of subphthalocyanine arrays triggered by scanning tunneling microscopy

被引：10

作者：

Yanagi, H ^{[1
]}

Ikuta, K ^{[1
]}

机构：

[1] Kobe Univ, Fac Engn, Nada Ku, Kobe, Hyogo 6578501, Japan

来源：

SURFACE SCIENCE | 2005年 / 581卷 / 01期

关键词：

density functional calculations; equilibrium thermodynamics and statistical mechanics; molecular beam epitaxy; scanning tunneling microscopy; physical adsorption;

D O I：

10.1016/j.susc.2005.02.024

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single-molecular switching phenomena in monolayer arrays of subphthalocyanine adsorbed on Cu(100) surface were investigated by scanning tunneling microscopy (STM) under ultrahigh vacuum. The molecules evaporated on the surface arranged in a square lattice taking the Cu(100)SubPc(5 x 5) epitaxy. During continuous STM imaging at fixed tunneling conditions the topography of the individual molecules spontaneously changed between the high and low states. This topographic change was attributed to orientational switching between the upward and downward adsorption of the axial Cl atom of the molecule on the Cu surface. Molecular energy calculations and statistical thermodynamic evaluation concluded that the tip-triggered disturbance in the close-packed molecular array induced the molecular rearrangement accompanied with the stochastic orientational switching. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：9 / 16

页数：8

共 20 条

[11] Controlled room-temperature positioning of individual molecules: Molecular flexure and motion [J].

Jung, TA ;

Schlittler, RR ;

Gimzewski, JK ;

Tang, H ;

Joachim, C .

SCIENCE, 1996, 271 (5246) :181-184

[12] Conformational identification of individual adsorbed molecules with the STM [J].

Jung, TA ;

Schlittler, RR ;

Gimzewski, JK .

NATURE, 1997, 386 (6626) :696-698

[13] GOLD DEPOSITION FROM A SCANNING TUNNELING MICROSCOPE TIP [J].

MAMIN, HJ ;

CHIANG, S ;

BIRK, H ;

GUETHNER, PH ;

RUGAR, D .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1991, 9 (02) :1398-1402

[14] LEED and STM investigation of chloro(subphthalocyaninato)boron on Au(111) [J].

Mannsfeld, S ;

Relchhard, H ;

Fritz, T .

SURFACE SCIENCE, 2003, 525 (1-3) :215-221

[15] TRIISINDOLO[1,2,3-CD - 1',2',3'-GH - 1'',2'',3''-KL][2,3A,5,6A,8,9A,9B]-HENA-AZABORAPHENALENE [J].

MELLER, A ;

OSSKO, A .

MONATSHEFTE FUR CHEMIE, 1972, 103 (01) :150-&

[16] Characterization of molecular overlayers on metal surface in dynamic equilibrium by scanning tunneling microscope [J].

Suzuki, H ;

Berner, S ;

Brunner, M ;

Yanagi, H ;

Schlettwein, D ;

Jung, TA ;

Güntherodt, HJ .

THIN SOLID FILMS, 2001, 393 (1-2) :325-328

[17] Prospects and problems of single molecule information devices [J].

Wada, Y ;

Tsukada, M ;

Fujihira, M ;

Matsushige, K ;

Ogawa, T ;

Haga, M ;

Tanaka, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2000, 39 (7A) :3835-3849

[18] UNSYMMETRICALLY SUBSTITUTED PHTHALOCYANINE DERIVATIVES VIA A MODIFIED RING ENLARGEMENT REACTION OF UNSUBSTITUTED SUBPHTHALOCYANINE [J].

WEITEMEYER, A ;

KLIESCH, H ;

WOHRLE, D .

JOURNAL OF ORGANIC CHEMISTRY, 1995, 60 (15) :4900-4904

[19] STM-induced flip-flop switching of adsorbed subphthalocyanine molecular arrays [J].

Yanagi, H ;

Ikuta, K ;

Mukai, H ;

Shibutani, T .

NANO LETTERS, 2002, 2 (09) :951-955

[20] Site-specific physisorption and chemical reaction of subphthalocyanine molecules on silicon(111)-(7x7) [J].

Yanagi, H ;

Schlettwein, D ;

Nakayama, H ;

Nishino, T .

PHYSICAL REVIEW B, 2000, 61 (03) :1959-1964

← 1 2 →