title: A compact high field magnetic force microscope.
abstract: We present the design and performance of a simple and compact magnetic force microscope (MFM), whose tip-sample coarse approach is implemented by the piezoelectric tube scanner (PTS) itself. In brief, a square rod shaft is axially spring-clamped on the inner wall of a metal tube which is glued inside the free end of the PTS. The shaft can thus be driven by the PTS to realize image scan and inertial stepping coarse approach. To enhance the inertial force, each of the four outer electrodes of the PTS is driven by an independent port of the controller. The MFM scan head is so compact that it can easily fit into the 52mm low temperature bore of a 20T superconducting magnet. The performance of the MFM is demonstrated by imaging a manganite thin film at low temperature and in magnetic fields up to 15T.
authors.affiliation: High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Technology of China, Hefei, Anhui 230031, People׳s Republic of China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People׳s Republic of China.
authors.forename: Haibiao
authors.initials: H
authors.lastname: Zhou
authors.affiliation: High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Technology of China, Hefei, Anhui 230031, People׳s Republic of China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People׳s Republic of China.
authors.forename: Ze
authors.initials: Z
authors.lastname: Wang
authors.affiliation: High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Technology of China, Hefei, Anhui 230031, People׳s Republic of China.
authors.forename: Yubin
authors.initials: Y
authors.lastname: Hou
authors.affiliation: High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Technology of China, Hefei, Anhui 230031, People׳s Republic of China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People׳s Republic of China. Electronic address: qxl@ustc.edu.cn.
authors.forename: Qingyou
authors.initials: Q
authors.lastname: Lu
keywords: High magnetic field; Magnetic force microscope; Piezo inertial motor; Scanning probe microscope