QUANTUM POINT-CONTACT SWITCHES

被引：101

作者：

SMITH, DPE ^{[1
]}

机构：

[1] IBM CORP, DIV RES, D-80799 MUNICH, GERMANY

来源：

SCIENCE | 1995年 / 269卷 / 5222期

关键词：

D O I：

10.1126/science.269.5222.371

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Switching behavior between electron tunneling and ballistic transport states was induced by repeatedly bringing a sharpened nickel wire into contact with a gold surface. The high-conductivity ballistic state had a quantized conductance of 0.977 +/- 0.015 (2e(2)/h). Switching was accomplished by moving the electrodes with a piezoelectric actuator over a distance of 2 angstroms. The two electrodes and the actuator form a three-terminal device that is demonstrated to be a reliable digital and analog switch; it shows good discrimination between high and low states and possesses the important property of power gain. The conductance channel is most likely only one atom wide and possibly consists of a single atom.

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收藏

页码：371 / 373

页数：3

相关论文

共 12 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] OBSERVATION OF METALLIC ADHESION USING THE SCANNING TUNNELING MICROSCOPE [J].

DURIG, U ;

ZUGER, O ;

POHL, DW .

PHYSICAL REVIEW LETTERS, 1990, 65 (03) :349-352

[3] AN ATOMIC SWITCH REALIZED WITH THE SCANNING TUNNELING MICROSCOPE [J].

EIGLER, DM ;

LUTZ, CP ;

RUDGE, WE .

NATURE, 1991, 352 (6336) :600-603

[4] 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

[5] 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

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

LANDMAN, U ;

LUEDTKE, WD ;

BURNHAM, NA ;

COLTON, RJ .

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

[7] 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

[8] 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

[9] 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

[10] PROPERTIES OF METALLIC NANOWIRES - FROM CONDUCTANCE QUANTIZATION TO LOCALIZATION [J].

PASCUAL, JI ;

MENDEZ, J ;

GOMEZHERRERO, J ;

BARO, AM ;

GARCIA, N ;

LANDMAN, U ;

LUEDTKE, WD ;

BOGACHEK, EN ;

CHENG, HP .

SCIENCE, 1995, 267 (5205) :1793-1795