STM studies on magnetic field induced electronic charge order

磁场感应电子电荷序的STM研究

• 批准号: 22540357
• 负责人: ODA Migaku
• 金额: $ 3万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540357/
• 关键词: 高温超伝導; 銅酸化物; STM; STS; 電荷秩序; 擬ギャップ; 銅酸化物高温超伝導体; 銅酸化物高温超伝導; 不均一ギャップ構造; 電子系電荷秩序; フェルミ面の二分性

In this research project, we performed STM/STS experiments under magnetic fields and pump-probe optical experiments in one of the typical high-Tc cuprates Bi2212 to clarify the origin of the electronic charge order accompanied by a pseudogap and its relation to the high-Tc superconductivity. STM/STS experiments suggested that the electronic charge order will be understood in terms of the charge-spin stripes model, and dynamically fluctuating in nature. In pump-probe optical experiments, furthermore, it was found that the electronic charge order and pseudogap do not only compete with but also is needed for the high-Tc superconductivity. Employing these results, we pointed out that the fluctuating stripes would be responsible for the formation of high-Tc superconductivity.

在本研究项目中，我们在一个典型的高Tc铜氧化物Bi 2212中进行了磁场下的STM/STS实验和泵浦探测光学实验，以阐明伴随着赝能隙的电子电荷序的起源及其与高Tc超导性的关系。STM/STS实验表明，电子电荷顺序可以根据电荷自旋条纹模型来理解，并且在本质上动态波动。此外，在泵浦探测光学实验中，发现电子电荷序和赝能隙不仅与高温超导竞争，而且是高温超导所必需的。利用这些结果，我们指出，起伏条纹将负责高Tc超导的形成。

项目成果

Role of the Fermi surface dichotomy in high-Tc cuprates

费米表面二分法在高温铜酸盐中的作用

• 发表时间: 2013
• 期刊: Topologica
• 作者: M. Oda;K. Takeyama;T. Kurosawa;Y. Toda;Y. H. Liu and M. Ido
• 通讯作者: Y. H. Liu and M. Ido

Impact of pseudogap on photoinduced superconducting phase transition in underdoped Bi2212

赝能隙对欠掺杂 Bi2212 光致超导相变的影响

• DOI: 10.1016/j.physc.2013.03.041
• 发表时间: 2013
• 期刊: Physica C
• 影响因子: 1.7
• 作者: Y. Toda;T. Mertelj;P. Kusar;T. Kurosawa;M. Oda;M. Ido;D. Mihailovic
• 通讯作者: D. Mihailovic

Reply to “Comment on ‘Charge-Parity Symmetry Observed through Friedel Oscillations in Chiral Charge-Density Waves’”

回复“评论‘通过手性电荷密度波中的弗里德尔振荡观察到的电荷宇称对称性’”

• DOI: 10.1103/physrevb.86.247102
• 发表时间: 2012
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: J. Ishioka;T. Fujii;K. Katono;K. Ichimura;T. Kurosawa;M. Oda and S. Tanda
• 通讯作者: M. Oda and S. Tanda

Ni-impurity effects on the superconducting gap of La_2-xSr_xCuO_4 studied from the magnetic field and temperature dependence of the electronic specific heat

从电子比热的磁场和温度依赖性研究Ni杂质对La_2-xSr_xCuO_4超导能隙的影响

• DOI: 10.1103/physrevb.85.134522
• 发表时间: 2012
• 期刊: Phys. Rev. B
• 作者: Toru Kurosawa;N. Momono;M. Oda and M.Ido
• 通讯作者: M. Oda and M.Ido

STM/STS study for the electronic charge order, large-pseudogap, and SC gap in Bi-based high-Tc cuprates

Bi基高温铜酸盐中电子电荷序、大赝能隙和SC能隙的STM/STS研究

• 发表时间: 2011
• 作者: T. Kurosawa;Y. Kitajima;N. Momono;M. Oda;and M. Ido
• 通讯作者: and M. Ido