e-space
Manchester Metropolitan University's Research Repository

    Resonant torque magnetometry: a new in-situ technique for determining the magnetic properties of thin film MFM tips

    Heydon, G.P., Farley, A.N., Hoon, Steve R., Valera, O. and Tomlinson, S.L. (1997) Resonant torque magnetometry: a new in-situ technique for determining the magnetic properties of thin film MFM tips. IEEE transactions on magnetics, 33 (5). 4059 - 4061. ISSN 0018-9464

    File not available for download.

    Abstract

    A new high sensitivity Resonant Torque Magnetometry (RTM) technique has been developed enabling the determination of the magnetic properties of Magnetic Force Microscope (MFM) tips in-situ. A sensitivity of better than 10"' emu (lo-'' Am') has been achieved at ambient temperature and pressure. We have studied the micromagnetic properties of a variety of tip coatings including hard CoCr and Copt films and soft permalloy. In-situ determination of the magnetic properties of MFM tips is vital if quantitative interpretation of MFM images is to be achieved especially when images are made in the presence of bias fields. The m(p.,H) loops obtained for Copt tips have a shape similar to a standard magnetisation loop when the field is applied parallel to the tip axis. With the field applied perpendicular to the tip both Copt and CoCr demonstrate behaviour consistent with partial demagnetisation of the axial moment, to which the RTM is sensitive.

    Impact and Reach

    Statistics

    Activity Overview
    6 month trend
    0Downloads
    6 month trend
    397Hits

    Additional statistics for this dataset are available via IRStats2.

    Altmetric

    Repository staff only

    Edit record Edit record