ELECTRIC-FIELD EFFECT CONTROL OF A SUPERCONDUCTING YBA2CU3O7 INDUCTOR

被引:12
作者
GIM, Y [1 ]
DOUGHTY, C [1 ]
XI, XX [1 ]
AMAR, A [1 ]
VENKATESAN, T [1 ]
WELLSTOOD, FC [1 ]
机构
[1] UNIV MARYLAND,DEPT ELECT ENGN,COLL PK,MD 20742
关键词
D O I
10.1063/1.109103
中图分类号
O59 [应用物理学];
学科分类号
摘要
We discuss the design, fabrication, and testing of a thin-film superconducting voltage-controlled inductor which is made from a YBa2Cu3O7 (YBCO) superconducting field effect transistor. Applying voltage to an Au gate layer alters the areal carrier density, and hence the kinetic inductance, of an underlying 100-nm-thick YBCO channel layer. The channel is connected in series with an input coil to form a closed superconducting loop. We use a dc superconducting quantum interference device at 4.2 -K to measure changes in loop inductance and find a fractional change in the kinetic inductance of about +2.6 X 10(-4)/V of applied gate voltage, close to the expected value.
引用
收藏
页码:3198 / 3200
页数:3
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