Planar SQUID gradiometers fabricated on 24° and 30° SrTiO3 bicrystals

被引:11
作者
Carr, C [1 ]
Eulenburg, A [1 ]
Romans, E [1 ]
Pegrum, CM [1 ]
Donaldson, GB [1 ]
机构
[1] Univ Strathclyde, Dept Phys & Appl Phys, Glasgow G4 0NG, Lanark, Scotland
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1109/77.783686
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
HTS de SQUID gradiometers have been fabricated on 24 degrees and 30 degrees SrTiO3, bicrystal substrates with slots and flux dams in the SQUID washers. The spatial response of such devices has been measured experimentally and compared with modelled results. Single layer devices, in terms of gradient sensitivity, have characteristics that deviate only slightly from idealized first order gradiometers. The low frequency flux noise of these devices is discussed with particular emphasis on both the unshielded properties and the effect of various cooldown procedures on the noise.
引用
收藏
页码:3105 / 3108
页数:4
相关论文
共 11 条
[1]  
DANSTKER E, 1996, APPL PHYS LETT, V69, P4099
[2]  
DANSTKER E, 1997, APPL PHYS LETT, V70, P2037
[3]  
DORRER L, 1997, ISEC 97 BERL GERM JU
[4]  
FOLEY CP, 1997, ISEC 97 BERL GERM JU
[5]   Effective area in slotted high Tc dc washer superconducting quantum interference devices [J].
Jansman, ABM ;
Izquierdo, M ;
Eiguren, A ;
Flokstra, J ;
Rogalla, H .
APPLIED PHYSICS LETTERS, 1998, 72 (26) :3515-3517
[6]   A PLANAR YBA2CU3O7 GRADIOMETER AT 77-K [J].
KNAPPE, S ;
DRUNG, D ;
SCHURIG, T ;
KOCH, H ;
KLINGER, M ;
HINKEN, J .
CRYOGENICS, 1992, 32 (10) :881-884
[7]   FLUX DAM, A METHOD TO REDUCE EXTRA LOW-FREQUENCY NOISE WHEN A SUPERCONDUCTING MAGNETOMETER IS EXPOSED TO A MAGNETIC-FIELD [J].
KOCH, RH ;
SUN, JZ ;
Foglietti, V ;
GALLAGHER, WJ .
APPLIED PHYSICS LETTERS, 1995, 67 (05) :709-711
[8]  
MACFARLANE JC, COMMUNICATION
[9]   High performance DC superconducting quantum interference device utilizing a bicrystal junction with a 30 degrees misorientation angle [J].
Minotani, T ;
Kawakami, S ;
Kiss, T ;
Kuroki, Y ;
Enpuku, K .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1997, 36 (8B) :L1092-L1095
[10]   High T-c SQUIDs for unshielded measuring in disturbed environments [J].
Schultze, V ;
Ijsselsteijn, R ;
Stolz, R ;
Zakosarenko, V .
JOURNAL DE PHYSIQUE IV, 1996, 6 (C3) :367-372