Superconductor-semiconductor magnetic microswitch

被引：7
作者：
Castellana, C [1 ]
Giazotto, F
Governale, M
Taddei, F
Beltram, F
机构：
[1] CNR, NEST, INFM, I-56126 Pisa, Italy
[2] Scuola Normale Super Pisa, I-56126 Pisa, Italy
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 05期
关键词：
23;
D O I：
10.1063/1.2172018
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A hybrid superconductor-two-dimensional electron gas microdevice is presented. Its working principle is based on the suppression of Andreev reflection at the superconductor-semiconductor interface caused by a magnetic barrier generated by a ferromagnetic strip placed on top of the structure. Device switching is predicted with fields up to some mT and working frequencies of several GHz, making it promising for applications ranging from microswitches and storage cells to magnetic field discriminators. (c) 2006 American Institute of Physics.
引用
收藏
页码：1 / 3
页数：3
相关论文
共 22 条
[1]  
Andreev A. F., 1964, ZH EKSP TEOR FIZ, V46, P1823
[2]   Andreev reflection and enhanced subgap conductance in NbN/Au/InGaAs-InP junctions [J].
Batov, IE ;
Schäpers, T ;
Golubov, AA ;
Ustinov, AV .
JOURNAL OF APPLIED PHYSICS, 2004, 96 (06) :3366-3370
[3]   DIRECT OBSERVATION OF ANDREEV REFLECTION [J].
BENISTANT, PAM ;
VANKEMPEN, H ;
WYDER, P .
PHYSICAL REVIEW LETTERS, 1983, 51 (09) :817-820
[4]   ANGULAR RELATION AND ENERGY-DEPENDENCE OF ANDREEV REFLECTION [J].
BENISTANT, PAM ;
VANGELDER, AP ;
VANKEMPEN, H ;
WYDER, P .
PHYSICAL REVIEW B, 1985, 32 (05) :3351-3353
[5]   4-TERMINAL PHASE-COHERENT CONDUCTANCE [J].
BUTTIKER, M .
PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1761-1764
[6]   Two-dimensional electron gas formation in undoped In0.75Ga0.25As/In0.75Al0.25As quantum wells [J].
Capotondi, F ;
Biasiol, G ;
Vobornik, I ;
Sorba, L ;
Giazotto, F ;
Cavallini, A ;
Fraboni, B .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2004, 22 (02) :702-706
[7]   Advances in the development of the magnetoquenched superconducting valve: Integrated control lines and a Nb-based device [J].
Clinton, TW ;
Broussard, PR ;
Johnson, M .
JOURNAL OF APPLIED PHYSICS, 2002, 91 (03) :1371-1377
[8]   Magnetoquenched superconducting valve with bilayer ferromagnetic film for uniaxial switching [J].
Clinton, TW ;
Johnson, M .
APPLIED PHYSICS LETTERS, 2000, 76 (15) :2116-2118
[9]   Mesoscopic magnetoquenched superconducting valve [J].
Clinton, TW ;
Johnson, M .
APPLIED PHYSICS LETTERS, 1997, 70 (09) :1170-1172
[10]  
de Gennes P. G., 1989, SUPERCONDUCTIVITY ME
123