title: Ultrahigh vacuum, variable temperature, dual scanning tunneling microscope system operating under high magnetic field.
abstract: We present a dual scanning tunneling microscope (DSTM) system operating between 2.2 K and room temperature, in a split-coil superconducting magnetic field up to 12 T and in ultrahigh vacuum. The DSTM consists of two compact STMs, each having x, y, and z coarse positioning piezoelectric steppers with embedded capacitive positioning sensor for navigation. Each STM can be operated independently and can achieve atomic resolution. The DSTM and the sample is configured in a way that allows the magnetic field orientation to be varied continuously from normal to parallel to the sample surface. Together with the sample, the DSTM can form a nanometer scale three terminal setup for transport measurement.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Zhongguancun South Street No. 8, Haidian, Beijing 100080, China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Cai
authors.forename: Fei
authors.initials: F
authors.lastname: Pang
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.forename: X J
authors.initials: XJ
authors.lastname: Liang
authors.forename: Q K
authors.initials: QK
authors.lastname: Xue
authors.forename: D M
authors.initials: DM
authors.lastname: Chen
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000295:instrumentation* / Q000379:methods; D008280:Magnetics / Q000295:instrumentation*; D016252:Microscopy, Scanning Tunneling / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature; D014618:Vacuum