A terraced scanning superconducting quantum interference device susceptometer with submicron pickup loops

被引：56
|
作者：
Koshnick, Nicholas C. [1 ,2 ]
Huber, Martin E. [3 ,4 ]
Bert, Julie A. [1 ,2 ]
Hicks, Clifford W. [1 ,2 ]
Large, Jeff [5 ]
Edwards, Hal [5 ]
Moler, Kathryn A. [3 ,4 ]
机构：
[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
[3] Univ Colorado Denver, Dept Phys, Denver, CO 80217 USA
[4] Univ Colorado Denver, Dept Elect Engn, Denver, CO 80217 USA
[5] Texas Instruments Inc, Circuit Design Repair Lab, Dallas, TX 75243 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 24期
基金：
美国国家科学基金会;
关键词：
focused ion beam technology; lithography; magnetic susceptibility; magnetic variables measurement; SQUID magnetometers;
D O I：
10.1063/1.3046098
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Superconducting quantum interference devices (SQUIDs) can have excellent spin sensitivity depending on their magnetic flux noise, pickup loop diameter, and distance from the sample. We report a family of scanning SQUID susceptometers with terraced tips that position the pickup loops 300 nm from the sample. The 600 nm-2 mu m pickup loops, defined by focused ion beam, are integrated into a 12-layer optical lithography process allowing flux-locked feedback, in situ background subtraction and optimized flux noise. These features enable a sensitivity of similar to 70 electron spins per root hertz at 4 K.
引用
收藏
页数：3
相关论文
共 50 条
  • [21] The Diamond Superconducting Quantum Interference Device
    Mandal, Soumen
    Bautze, Tobias
    Williams, Oliver A.
    Naud, Cecile
    Bustarret, Etienne
    Omnes, Franck
    Rodiere, Pierre
    Meunier, Tristan
    Baeuerle, Christopher
    Saminadayar, Laurent
    ACS NANO, 2011, 5 (09) : 7144 - 7148
  • [22] Nonlocal superconducting quantum interference device
    Noh, Taewan
    Kindseth, Andrew
    Chandrasekhar, Venkat
    PHYSICAL REVIEW B, 2021, 104 (06)
  • [23] Eddy current testing utilizing cooled normal pickup coil and superconducting quantum interference device picovoltmeter
    Yang, TQ
    Yao, K
    Yamasaki, D
    Enpuku, K
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2005, 44 (33-36): : L1128 - L1130
  • [24] A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms
    Kandori, Akihiko
    Suzuki, Daisuke
    Yokosawa, Koichi
    Tsukamoto, Akira
    Miyashita, Tsuyoshi
    Tsukada, Keiji
    Takagi, Kazumasa
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 2002, 41 (2 A): : 596 - 599
  • [25] DESIGN AND FABRICATION OF A MULTILOOP SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE, THE CLOVER-LEAF SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE
    MATSUDA, N
    UEHARA, G
    KAZAMI, K
    TAKADA, Y
    KADO, H
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1995, 34 (1A): : L27 - L30
  • [26] Relationship between spatial resolution and noise in scanning superconducting quantum interference device microscopy
    Chatraphorn, S
    Fleet, EF
    Wellstood, FC
    JOURNAL OF APPLIED PHYSICS, 2002, 92 (08) : 4731 - 4740
  • [27] Microstrip superconducting quantum interference device amplifiers with submicron Josephson junctions: Enhanced gain at gigahertz frequencies
    DeFeo, M. P.
    Bhupathi, P.
    Yu, K.
    Heitmann, T. W.
    Song, C.
    McDermott, R.
    Plourde, B. L. T.
    APPLIED PHYSICS LETTERS, 2010, 97 (09)
  • [28] Superconducting-quantum-interference-device array magnetometers with directly coupled pickup loop and serial flux dams
    Wu, Chiu-Hsien
    Yang, Hong-Chang
    Chen, Ji-Cheng
    Chen, Kuen-Lin
    Chen, M. J.
    Jeng, J. T.
    Horng, Herng-Er
    JOURNAL OF APPLIED PHYSICS, 2006, 100 (06)
  • [29] Superconducting-quantum-interference-device array magnetometers with directly coupled pickup loop and serial flux dams
    Wu, Chiu-Hsien
    Yang, Hong-Chang
    Chen, Ji-Cheng
    Chen, Kuen-Lin
    Chen, M.J.
    Jeng, J.T.
    Horng, Herng-Er
    Journal of Applied Physics, 2006, 100 (06):
  • [30] Properties of a flux dam inserted in the pickup coil of a high-Tc superconducting quantum interference device magnetometer
    Enpuku, K
    Nakahodo, A
    Hotta, M
    Hijiya, S
    Tokimizu, D
    Kuroda, D
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2001, 40 (6A): : 4013 - 4018
12345