SUBQUANTUM CONDUCTANCE STEPS IN ATOM-SIZED CONTACTS OF THE SEMIMETAL SB

被引：37

作者：

KRANS, JM

VANRUITENBEEK, JM

机构：

[1] Kamerlingh Onnes Laboratorium, 2300 RA Leiden

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.50.17659

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The transition from semimetallic Sb contacts to vacuum tunnel junctions is studied using a mechanically controllable break junction. The conductance of an atom-sized contact is shown to be small compared to the quantum unit due to the large Fermi wavelength of the electrons in Sb. Observation of subquantum conductance steps when varying the contact area of atomic dimensions gives clear experimental evidence for rearrangements of atoms building up the contract. © 1994 The American Physical Society.

引用

收藏

页码：17659 / 17661

页数：3

相关论文

共 15 条

[1] CONDUCTANCE STEPS AND QUANTIZATION IN ATOMIC-SIZE CONTACTS [J].

AGRAIT, N ;

RODRIGO, JG ;

VIEIRA, S .

PHYSICAL REVIEW B, 1993, 47 (18) :12345-12348

[2]

BEENAKKER CWJ, 1991, SOLID STATE PHYS, V44, P1

[3] ONE-ATOM POINT CONTACTS [J].

KRANS, JM ;

MULLER, CJ ;

YANSON, IK ;

GOVAERT, TCM ;

HESPER, R ;

VANRUITENBEEK, JM .

PHYSICAL REVIEW B, 1993, 48 (19) :14721-14724

[4] ONE-ATOM POINT CONTACTS [J].

KRANS, JM ;

MULLER, CJ ;

YANSON, IK ;

VANRUITENBEEK, JM .

PHYSICA B, 1994, 194 (pt 1) :1033-1034

[5]

KRANS JM, IN PRESS PHYS REV LE

[6] SPATIAL VARIATION OF CURRENTS AND FIELDS DUE TO LOCALIZED SCATTERERS IN METALLIC CONDUCTION [J].

LANDAUER, R .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1957, 1 (03) :223-231

[7] ATOMISTIC MECHANISMS AND DYNAMICS OF ADHESION, NANOINDENTATION, AND FRACTURE [J].

LANDMAN, U ;

LUEDTKE, WD ;

BURNHAM, NA ;

COLTON, RJ .

SCIENCE, 1990, 248 (4954) :454-461

[8] 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

[9] EXPERIMENTAL-OBSERVATION OF THE TRANSITION FROM WEAK LINK TO TUNNEL JUNCTION [J].

MULLER, CJ ;

VANRUITENBEEK, JM ;

DEJONGH, LJ .

PHYSICA C, 1992, 191 (3-4) :485-504

[10] QUANTIZED CONDUCTANCE IN AN ATOM-SIZED POINT-CONTACT [J].

OLESEN, L ;

LAEGSGAARD, E ;

STENSGAARD, I ;

BESENBACHER, F ;

SCHIOTZ, J ;

STOLTZE, P ;

JACOBSEN, KW ;

NORSKOV, JK .

PHYSICAL REVIEW LETTERS, 1994, 72 (14) :2251-2254