TITLE

Direct measurements of the penetration depth in a superconducting film using magnetic force microscopy

AUTHOR(S)
Nazaretski, E.; Thibodaux, J. P.; Vekhter, I.; Civale, L.; Thompson, J. D.; Movshovich, R.
PUB. DATE
December 2009
SOURCE
Applied Physics Letters;12/28/2009, Vol. 95 Issue 26, p262502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the local measurements of the magnetic penetration depth λ in a superconducting Nb film using magnetic force microscopy (MFM). We developed a method for quantitative extraction of the penetration depth from single-parameter simultaneous fits to the lateral and height profiles of the MFM signal, and demonstrate that the obtained value is in excellent agreement with that obtained from the bulk magnetization measurements.
ACCESSION #
47244485

 

Related Articles

  • High frequency write head measurement with the phase detection magnetic force microscope. Abe, M.; Tanaka, Y. // Journal of Applied Physics;6/1/2001, Vol. 89 Issue 11, p6766 

    We demonstrated the measurement of the high frequency (HF) magnetic field of a write head with the phase detection magnetic force microscope. An amplitude-modulated current was applied to the head coil to detect the force gradient induced by the HF magnetic field. Spatial resolution of this...

  • Distribution of type-B minority domains in a type-A MnAs thin layer on GaAs(001). Takagaki, Y.; Herrmann, C.; Wiebicke, E.; Herfort, J.; Jenichen, B. // Journal of Applied Physics;6/15/2007, Vol. 101 Issue 12, p123914 

    We examine the statistics of the orientation of the magnetic moment in MnAs dots fabricated from an epitaxial film on GaAs(001). Magnetic-force microscopy reveals that the magnetic moment in about 6% of MnAs dots having a diameter of about 60 nm and a thickness of 37 nm be titled from the...

  • Magnetization reversal of exchange coupled CoFe/IrMn bilayers. Zhao, Tong; Zhang, Kunliang; Fujiwara, Hideo // Journal of Applied Physics;5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p6890 

    The magnetization reversals of circular elements of CoFe/IrMn bilayers were studied using magnetic force microscopy. Drastic changes of domain structures and the nature of the reversal processes were observed with varying thickness of the CoFe layer. The localized incoherent rotation dominates...

  • Reconstruction of in-plane magnetization distributions from magnetic force microscope images. Zhao, T.; Fujiwara, H.; Mankey, G. J.; Hou, C.; Sun, M. // Journal of Applied Physics;6/1/2001, Vol. 89 Issue 11, p7230 

    A three-step method is proposed for reconstructing the in-plane magnetization distribution from a magnetic force microscope (MFM) image. The magnetization distribution is initialized using some assumptions based on our knowledge about domain structures and MFM contrast mechanisms. Then the...

  • Modeling MFM images of periodic magnetization patterns (abstract). Madabhushi, R.; Gomez, R. D.; Burke, E. R.; Mayergoyz, I. D. // Journal of Applied Physics;4/15/1996, Vol. 79 Issue 8, p6063 

    Presents an abstract of the study 'Modeling MFM Images of Periodic Magnetization Patterns,' by R. Madabhushi, R. D. Gomez, E. R. Burke, I. D. Mayergoyz.

  • Theory of magnetic force microscope images. Abraham, David W.; McDonald, F. Alan // Applied Physics Letters;3/19/1990, Vol. 56 Issue 12, p1181 

    A model is presented for magnetic force microscope (MFM) images obtained with a ferromagnetic tip and a ferromagnetic sample. Results of calculations are compared to recent MFM experiments and show good agreement using known values for magnetic parameters characterizing tip and sample. The model...

  • Quantitative magnetic field measurements with the magnetic force microscope. Proksch, Roger; Skidmore, George D.; Dahlberg, E. Dan; Foss, Sheryl; Schmidt, J. J.; Merton, Chris; Walsh, Brian; Dugas, Matt // Applied Physics Letters;10/21/1996, Vol. 69 Issue 17, p2599 

    We have developed a technique to quantitatively image the magnetic field above a magnetic specimen using a modified magnetic force microscope (MFM). The technique depends on the nonlinear response of a magnetically soft MFM tip to the sample field and to an externally applied field, similar in...

  • Temperature-dependent magnetic force microscopy investigation of epitaxial MnAs films on GaAs(001). Plake, T.; Hesjedal, T.; Mohanty, J.; Kästner, M.; Däweritz, L.; Ploog, K. H. // Applied Physics Letters;4/7/2003, Vol. 82 Issue 14, p2308 

    We present variable-temperature magnetic force microscopy (VT-MFM) studies of epitaxially grown MnAs films on GaAs(001). Around a critical temperature of T[sub c]=40 °C, the MnAs film undergoes a first order structural phase transition. Due to the strain involved, ferromagnetic a-MnAs and...

  • Single-domain magnetic pillar array of 35 nm diameter and 65 Gbits/in.2 density for ultrahigh density quantum magnetic storage. Chou, Stephen Y.; Wei, Mark S.; Krauss, Peter R.; Fischer, Paul B. // Journal of Applied Physics;11/15/1994, Vol. 76 Issue 10, p6673 

    Focuses on a study which discussed the fabrication process, magnetic force microscope measurements and the possibilities of a recording paradigm offered by arrays of nickel pillars on silicon. Review of related literature; Theoretical analysis and characterization of the nickel pillar arrays;...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics