公开(公告)号：US6078174A

公开(公告)日：2000-06-20

申请号：US59399

申请日：1998-04-14

Applicant: Koichi Mukasa ,  Kazunobu Hayakawa ,  Kazuhisa Sueoka ,  Kohji Nakamura ,  Yuichi Tazuke ,  Hideo Hasegawa ,  Tamio Oguchi

Inventor： Koichi Mukasa ,  Kazunobu Hayakawa ,  Kazuhisa Sueoka ,  Kohji Nakamura ,  Yuichi Tazuke ,  Hideo Hasegawa ,  Tamio Oguchi

IPC: G01B7/34 ,  G01B7/00 ,  G01N23/225 ,  G01N24/00 ,  G01N37/00 ,  G01Q10/06 ,  G01Q20/04 ,  G01Q60/24 ,  G01Q60/36 ,  G01Q60/40 ,  G01Q60/50 ,  G01Q60/54 ,  G01Q60/56 ,  G01R33/02

CPC classification number: G01Q60/08 ,  B82Y35/00 ,  G01Q60/32 ,  G01Q60/38 ,  G01Q60/54 ,  Y10S977/852

Abstract: In an apparatus for measuring an exchange force between a specimen and a probe, the specimen and probe are faced to each other with a distance within a close proximity or RKKY-type exchange interaction region from a distance at which conduction electron clouds begin to be overlapped with each other to a distance at which localized electron clouds are not substantially overlapped with each other. In order to prevent the probe from being attracted to the specimen by a force between the specimen and the force, a piezoelectric element is provided on a cantilever and a control signal supplied to the piezoelectric element is produced in accordance with a displacement of the cantilever to control a spring constant of the cantilever. The exchange force between the specimen and the probe is calculated from the control signal supplied to the piezoelectric element.

Abstract translation: 在用于测量样本和探针之间的交换力的装置中，样本和探针彼此面对彼此，距离传导电子云开始重叠的距离在距离近的距离或RKKY型交换相互作用区域 彼此间隔一定距离，在该距离处局部电子云基本上不重叠。 为了通过试样和力之间的力阻止探针被吸引到样品上，在悬臂上设置压电元件，并且根据悬臂的位移产生供给到压电元件的控制信号 控制悬臂的弹簧常数。 根据提供给压电元件的控制信号计算样品和探针之间的交换力。

公开(公告)号：US6081115A

公开(公告)日：2000-06-27

申请号：US49995

申请日：1998-03-30

Applicant: Koichi Mukasa ,  Kazunobu Hayakawa ,  Kazuhisa Sueoka ,  Kohji Nakamura ,  Yuichi Tazuke ,  Hideo Hasegawa ,  Tamio Oguchi

Inventor： Koichi Mukasa ,  Kazunobu Hayakawa ,  Kazuhisa Sueoka ,  Kohji Nakamura ,  Yuichi Tazuke ,  Hideo Hasegawa ,  Tamio Oguchi

IPC: G01R33/12 ,  G01N27/00 ,  G01N37/00 ,  G01Q30/20 ,  G01Q60/00 ,  G01Q60/24 ,  G01Q60/50 ,  G01Q60/54 ,  H01F41/30 ,  G01R33/02 ,  G01N24/00

CPC classification number: G01Q60/08 ,  B82Y35/00 ,  B82Y40/00 ,  G01Q60/32 ,  G01Q60/38 ,  G01Q60/54 ,  H01F41/303 ,  B82Y25/00 ,  Y10S977/852

Abstract: In a method of measuring an exchange force between a specimen and a probe, the specimen and probe are faced to each other with a distance within a close proximity or RKKY-type exchange interaction region from a distance at which conduction electron clouds begin to be overlapped with each other to a distance at which localized electron clouds are not substantially overlapped with each other, a relative displacement of the specimen and probe is detected to measure a first force under such a condition that directions of magnetic moments of said specimen surface and probe are in parallel with each other to derive a first force and under such a condition that directions of magnetic moments of said specimen surface and probe are in anti-parallel with each other to derive a second force. An exchange force is derived as a difference between said first and second forces. Magnetic property of the specimen can be evaluated on the basis of the thus measured exchange force.

Abstract translation: 在测量样品和探针之间的交换力的方法中，样品和探针彼此面对彼此，距离传导电子云开始重叠的距离在距离近的距离或RKKY型交换相互作用区 彼此相距一定距离，在该距离处局部电子云彼此基本不重叠，检测样本和探针的相对位移，以便在所述样本表面和探针的磁矩方向为 彼此平行地导出第一力并且在所述样本表面和探针的磁矩的方向彼此反平行以导出第二力的条件下。 交换力被导出为所述第一和第二力之间的差。 可以基于如此测量的交换力来评估样品的磁性。