Andreev resonances in the current-voltage characteristics of a normal-metal-superconductor junction.
Andreev resonances in the current-voltage characteristics of a normal-metal-superconductor junction.
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安德烈耶夫在普通金属超导体结的电流电压特性中产生共振。
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Bagwell
中科院分区：
文献类型：
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作者：
Chaudhuri;Bagwell
我们计算了具有一维、二维或三维电子发射器的正常金属-超导体（NS）结的电流-电压特性。一个额外的隧道势垒也被放置在结处，允许形成准束缚的安德烈耶夫能级。由此产生的电导共振在正常金属-绝缘体-正常金属-超导体（NINS）结中是最强的，并且与三维情况下的罗威尔-麦克米伦振荡相同。当电子运动限于一维时，NS结电导中的Andreev共振通常会变得更强。
We calculate the current-voltage characteristic of a normal-metal--superconductor (NS) junction having a one-, two-, or three-dimensional electron emitter. An additional tunneling barrier is also placed in the junction, allowing the formation of quasibound Andreev energy levels. The resulting conductance resonances are strongest for a normal-metal--insulator--normal-metal--superconductor (NINS) junction, and are identical to the Rowell-McMillan oscillations in the three-dimensional case. Andreev resonances in the conductance of a NS junction generally become stronger when the electronic motion is confined to one dimension.