摘要:
An electron beam recording and reproducing apparatus which radiates the electron beam emitted from a needle cathode (1) to a disc (2) for recording and reproduction is disclosed. The needle cathode (1) moves relative to the disc (2). A magnetic field is applied in the axial direction of the needle cathode (1) in order to converge and radiate the electron beam emitted from the needle cathode (1) to the disc (2).
摘要:
A disclosure is made on an apparatus for measuring an electromagnetic field distribution using a focused electron beam which can measure the electromagnetic field distribution in a specimen with a high resolution and a high reliability. The present apparatus comprises: a focused electron beam radiation system for irradiating a specimen with a focused electron beam; a specimen tilt mechanism for tilting a specimen by 180° with a tilt axis being perpendicular to the optical axis of the focused electron beam; an electron beam position detector for measuring the direction and the quantity of the deflection given to the focused electron beam when it is transmitted through the specimen; and a processing system for calculating the direction and the intensity of an electric field, and the direction and the intensity of a magnetic field separately at a point on the specimen through which the focused electron beam is transmitted from the data on the direction and the quantity of the deflection of the focused electron beam measured by the electron beam position detector before and after the turnover of the specimen by the specimen tilt mechanism. Owing to the present apparatus, an electric field and a magnetic field in a specimen can be separately observed independent of each other.
摘要:
A scanning tunnel microscope comprising: a SEM stage (23) provided in a specimen chamber (3) of a SEM and having a mechanism (60-64) for moving in a two dimensional manner along a surface perpendicular to an electron beam (34); a specimen stage (25) provided on the SEM stage and provided with a mechanism (26-28) for holding a specimen (33) so that a surface of the specimen makes an angle of 45° with the electron beam and for moving the specimen in a two dimensional manner along the specimen surface; an STM scanning mechanism (41-57) provided on the SEM stage and provided with a probe (41) held perpendicularly to the specimen surface, an approaching mechanism (44-54) for making the probe approach to a position at a desired distance from the specimen surface, and a probe fine movement mechanism (53-56) for making the probe scan along the specimen surface; and a display unit (D1, D2) for displaying an image by the SEM together with an image of the probe on the basis of signal obtained from a secondary electron detector (4) provided in a specimen chamber (3) and for displaying an image by the STM on the basis of signals from said prove fine movement mechanism.
摘要:
An atomic force microscope is provided for sensing displacement of a cantilever (1) based on a scanning tunneling microscopy. Concretely, the present invention comprises a first microscope having a cantilever (1) for sensing atomic force or magnetic force and an STM (Scanning Tunneling Microscope) functioned as a second microscope for sensing tunneling current and keeping the tunneling current constant. It results in the microscope being able to carry out atomic force microscopy and tunneling microscopy without changing a single STM tip (1b) and to control the minimal force between the sample (3) and the tip (1b) to be constant.
摘要:
A piezoelectric motor is disclosed, which comprises a slider including a tabular vibrator (1) in which a standing wave is excited, and a plurality of piezoelectric actuators (2, 3) securely mounted at the parts of the lower surface of the vibrator (1) corresponding to the loop and node of the standing wave and adapted to be deformed in phase with the standing wave.
摘要:
A surface observing apparatus for obtaining information of a specimen comprises a probe (17) disposed in the close vicinity of the specimen (2), a deformable cantilever (1) for holding the probe (17), a scanning mechanism for scanning a surface of the specimen with the probe (17), and detectors (3, 4, 5) for detecting displacements of the cantilever (1) to thereby allow information of the specimen to be derived on the basis of the displacement of the cantilever (1). The apparatus further comprise a first detector (9) for detecting a force acting on the probe from the displacement of the cantilever, and a second detector (7) for measuring a change in the force acting on the probe on the basis of the displacement of the cantilever.
摘要:
An atomic force microscope is provided for sensing displacement of a cantilever (1) based on a scanning tunneling microscopy. Concretely, the present invention comprises a first microscope having a cantilever (1) for sensing atomic force or magnetic force and an STM (Scanning Tunneling Microscope) functioned as a second microscope for sensing tunneling current and keeping the tunneling current constant. It results in the microscope being able to carry out atomic force microscopy and tunneling microscopy without changing a single STM tip (1b) and to control the minimal force between the sample (3) and the tip (1b) to be constant.