Electronic transport through a bending contact

被引:0
作者
Schröter, U [1 ]
机构
[1] Univ Konstanz, AG Scheer, FB Phys, D-78457 Constance, Germany
关键词
D O I
10.12693/APhysPolA.109.305
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The so-called "break-junction technique" allows us to realize contacts only single-atom in diameter at their thinnest point. Electronic transport through such narrow constrictions shows a quantum mechanical signature which is well described in a transport channel picture. Each individual contact is characterized by an ensemble of channel transmission probabilities. Preferred total conductance values as well as the number of channels, however, turn out to be universal for the material investigated, despite the lack of control of the exact contact geometry.
引用
收藏
页码:305 / 310
页数:6
相关论文
共 16 条
[1]   Quantum properties of atomic-sized conductors [J].
Agraït, N ;
Yeyati, AL ;
van Ruitenbeek, JM .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2003, 377 (2-3) :81-279
[2]   Mechanically controllable break-junctions for use as electrodes for molecular electronics [J].
Böhler, T ;
Grebing, J ;
Mayer-Gindner, A ;
Löhneysen, HV ;
Scheer, E .
NANOTECHNOLOGY, 2004, 15 (07) :S465-S471
[3]   Hamiltonian approach to the transport properties of superconducting quantum point [J].
Cuevas, JC ;
MartinRodero, A ;
Yeyati, AL .
PHYSICAL REVIEW B, 1996, 54 (10) :7366-7379
[4]   Microscopic origin of conducting channels in metallic atomic-size contacts [J].
Cuevas, JC ;
Yeyati, AL ;
Martin-Rodero, A .
PHYSICAL REVIEW LETTERS, 1998, 80 (05) :1066-1069
[5]   Electrical transport through single-molecule junctions:: From molecular orbitals to conduction channels -: art. no. 256803 [J].
Heurich, J ;
Cuevas, JC ;
Wenzel, W ;
Schön, G .
PHYSICAL REVIEW LETTERS, 2002, 88 (25) :4
[6]   Quantum transport in metallic nanowires fabricated by electrochemical deposition/dissolution [J].
Li, CZ ;
Tao, NJ .
APPLIED PHYSICS LETTERS, 1998, 72 (08) :894-896
[7]   QUANTUM CONTACT IN GOLD NANOSTRUCTURES BY SCANNING-TUNNELING-MICROSCOPY [J].
PASCUAL, JI ;
MENDEZ, J ;
GOMEZHERRERO, J ;
BARO, AM ;
GARCIA, N ;
BINH, VT .
PHYSICAL REVIEW LETTERS, 1993, 71 (12) :1852-1855
[8]   Determining the current polarization in Al/Co nanostructured point contacts -: art. no. 140502 [J].
Pérez-Willard, F ;
Cuevas, JC ;
Sürgers, C ;
Pfundstein, P ;
Kopu, J ;
Eschrig, M ;
von Löhneysen, H .
PHYSICAL REVIEW B, 2004, 69 (14) :140502-1
[9]   Driving current through single organic molecules -: art. no. 176804 [J].
Reichert, J ;
Ochs, R ;
Beckmann, D ;
Weber, HB ;
Mayor, M ;
von Löhneysen, H .
PHYSICAL REVIEW LETTERS, 2002, 88 (17) :4
[10]   The signature of chemical valence in the electrical conduction through a single-atom contact [J].
Scheer, E ;
Agrait, N ;
Cuevas, JC ;
Yeyati, AL ;
Ludoph, B ;
Martin-Rodero, A ;
Bollinger, GR ;
van Ruitenbeek, JM ;
Urbina, C .
NATURE, 1998, 394 (6689) :154-157