Electron spin detection by electron spin resonance with scanning tunneling microscope

使用扫描隧道显微镜通过电子自旋共振检测电子自旋

• 批准号: 23540425
• 负责人: SAKATA HIDEAKI
• 金额: $ 3.33万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540425/
• 关键词: 走査トンネル顕微鏡; スピン; ESR; 電子スピン共鳴

The object of this study was to observe a single spin by scanning tunneling microscope (STM) in some materials. The precession motion of a spin under a weak magnetic field modulates the tunneling current with the precession frequency. This phenomenon was used to detect spin by STM. We made STM with the low noise filter, impedance converter and preamp. The distance among the STM tip, the sample and the measuring circuit was minimized to reduce the attenuation of the high frequency signal. We observed high frequency signal due to an unpaired electron in BDPA. High frequency signal due to the localized state in graphite edge was not detected.

这项研究的目的是通过在某些材料中扫描隧道显微镜（STM）来观察单个自旋。在弱磁场下旋转的动力运动以进进频率调节隧道电流。这种现象用于检测STM的自旋。我们用低噪声过滤器，阻抗转换器和前置放大器制作了STM。将STM尖端，样品和测量电路之间的距离最小化，以减少高频信号的衰减。我们观察到由于BDPA中未配对的电子而引起的高频信号。由于未检测到石墨边缘中局部状态引起的高频信号。

项目成果

Magnetic Field Induced Dehybridization of the Electromagnons in Multiferroic TbMnO3

多铁性 TbMnO3 中电磁子的磁场诱导去杂化

• 发表时间: 2011
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: P. Rovillain;M. Cazayous;Y. Gallais;M-A. Measson;A. Sacuto;H. Sakata;and M. Mochizuki
• 通讯作者: and M. Mochizuki

走査トンネル顕微鏡/分光法によるBi2212のZn不純物状態の観察

扫描隧道显微镜/光谱法观察Bi2212中Zn杂质状态

• 作者: 中村浩士;井口正晴;山崎隆博;金子晃大;町田理;茂筑高士;平田和人;長谷川哲也;坂田英明
• 通讯作者: 坂田英明

Effect of Zn, Ni and Fe Impurities on Bi2Sr1.6La0.4CuO6+δ

Zn、Ni、Fe杂质对Bi2Sr1.6La0.4CuO6+δ的影响

• 发表时间: 2011
• 期刊: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
• 影响因子: 1.8
• 作者: H. Nakamura;H. Funahashi;M. Fujimoto;M. Iguchi and T. Yamasaki;H. Sakata
• 通讯作者: H. Sakata

Effect of Zn, Ni, and Fe Impurities on Bi2Sr1. 6La0. 4CuO6+δ

Zn、Ni 和 Fe 杂质对 Bi2Sr1 4CuO6+δ 的影响。

• 发表时间: 2011
• 期刊: J. Superconductivity and Novel Magnetism
• 作者: H. Nakamura;H. Funahashi;M. Fujimori;M. Iguchi;Y. Yamasaki;H. Sakata
• 通讯作者: H. Sakata

Quantum interference of impurity bound sates in Bi2Sr2Ca(Cu1-xZnx) 2O8+δ probed by scanning tunneling spectroscopy

扫描隧道光谱探测Bi2Sr2Ca(Cu1-xZnx) 2O8+δ中杂质结合态的量子干涉

• 发表时间: 2011
• 期刊: Phys. Rev. B
• 作者: T. Machida;T. Kato;H. Nakamura;M. Fujimoto;T. Mochiku;S. Ooi;A. Thakur;H. Sakata and K. Hirata
• 通讯作者: H. Sakata and K. Hirata