CONDUCTANCE STEPS AND QUANTIZATION IN ATOMIC-SIZE CONTACTS

被引:386
作者
AGRAIT, N
RODRIGO, JG
VIEIRA, S
机构
[1] Laboratorio de Bajas Temperatures, Departamento de Física de la Materia Condensada, C-III Universidad Autónoma de Madrid
来源
PHYSICAL REVIEW B | 1993年 / 47卷 / 18期
关键词
D O I
10.1103/PhysRevB.47.12345
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The conductance of metallic contacts of atomic size has been studied using a scanning tunneling microscope at low temperature. As the contact area is changed by pressing the tip into the sample, a series of reproducible features and jumps in the conductance at integer multiples of 2e2/h is observed. The jumps are interpreted as atomic rearrangements, while the underlying conductance structure strongly suggests quantum-size effects.
引用
收藏
页码:12345 / 12348
页数:4
相关论文
共 14 条
[1]   TRANSITION FROM THE TUNNELING REGIME TO POINT CONTACT AND PROXIMITY-INDUCED JOSEPHSON EFFECT IN LEAD NORMAL-METAL NANOJUNCTIONS [J].
AGRAIT, N ;
RODRIGO, JG ;
VIEIRA, S .
PHYSICAL REVIEW B, 1992, 46 (09) :5814-5817
[2]   THEORY OF TRANSITION FROM THE TUNNELING REGIME TO POINT CONTACT IN SCANNING TUNNELING MICROSCOPY [J].
CIRACI, S ;
TEKMAN, E .
PHYSICAL REVIEW B, 1989, 40 (17) :11969-11972
[3]   OBSERVATION OF METALLIC ADHESION USING THE SCANNING TUNNELING MICROSCOPE [J].
DURIG, U ;
ZUGER, O ;
POHL, DW .
PHYSICAL REVIEW LETTERS, 1990, 65 (03) :349-352
[4]  
ESCAPA L, 1990, SCANNING TUNNELING M, P143
[5]   EFFECT OF THERMAL NOISE ON CURRENT-VOLTAGE CHARACTERISTICS OF JOSEPHSON JUNCTIONS [J].
FALCO, CM ;
PARKER, WH ;
TRULLINGER, SE ;
HANSMA, PK .
PHYSICAL REVIEW B, 1974, 10 (05) :1865-1873
[6]   TRANSITION FROM THE TUNNELING REGIME TO POINT CONTACT STUDIED USING SCANNING TUNNELING MICROSCOPY [J].
GIMZEWSKI, JK ;
MOLLER, R .
PHYSICAL REVIEW B, 1987, 36 (02) :1284-1287
[7]   POINT-CONTACT SPECTROSCOPY IN METALS [J].
JANSEN, AGM ;
VANGELDER, AP ;
WYDER, P .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1980, 13 (33) :6073-6118
[9]   ATOMISTIC MECHANISMS AND DYNAMICS OF ADHESION, NANOINDENTATION, AND FRACTURE [J].
LANDMAN, U ;
LUEDTKE, WD ;
BURNHAM, NA ;
COLTON, RJ .
SCIENCE, 1990, 248 (4954) :454-461
[10]   CONDUCTANCE AND SUPERCURRENT DISCONTINUITIES IN ATOMIC-SCALE METALLIC CONSTRICTIONS OF VARIABLE WIDTH [J].
MULLER, CJ ;
VANRUITENBEEK, JM ;
DEJONGH, LJ .
PHYSICAL REVIEW LETTERS, 1992, 69 (01) :140-143