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Related papers: Superconductivity in dilute SrTiO$_3$: a review

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Superconductivity was recently observed in boron-doped ($\sqrt{3}\times\sqrt{3}$)Sn/Si(111). The material can be described by an extended Hubbard model on a triangular lattice. Here, we use the random-phase approximation to investigate the…

Superconductivity · Physics 2022-08-23 Mehdi Biderang , Mohammad-Hossein Zare , Jesko Sirker

We explore both experimental and theoretical aspects of the superconducting properties in the distinctive layered caged compound, Ba$_{3}$Ir$_{4}$Ge$_{16}$. Our approach integrates muon spin rotation and relaxation ($\mu$SR) measurements…

Superconductivity with a remarkably high $T_c$ has recently been found in Sr-doped NdNiO$_2$ thin films. While this system bears strong similarities to the cuprates, some differences, such as a weaker antiferromagnetic exchange coupling and…

Strongly Correlated Electrons · Physics 2020-01-15 Philipp Werner , Shintaro Hoshino

We start by analyzing experimental data of Spinelli [A. Spinelli, M. A. Torija, C. Liu, C. Jan, and C. Leighton, Phys. Rev. B 81, 155110 (2010)] for conductivity of $n$-type bulk crystals of SrTiO$_3$ (STO) with broad electron concentration…

Materials Science · Physics 2021-06-10 Yi Huang , Y. Ayino , B. I. Shklovskii

In complex transition metal oxides (TMO) an arrested electronic phase separation (PS) appears by tuning the system near a Lifshitz transition in multiband Hubbard models. The PS in La2CuO4+y near insulator to metal transition (IMT) is made…

Superconductivity · Physics 2017-01-04 D. Di Gioacchino , A. Puri , A. Marcelli , N. Poccia , A. Ricci , A. Bianconi

We have investigated electron transport in Nb doped SrTiO$_3$ single crystals for two doping densities. We find that the resistivity and mobility are temperature dependent in both whereas the carrier concentration is almost temperature…

Materials Science · Physics 2013-02-11 K. G. Rana , V. Khikhlovskyi , T. Banerjee

We fabricated high-mobility {\delta}-doped structures in SrTiO3 thin films in order to investigate the low temperature electronic transport properties of confined carriers in this system. An enhancement of the electron mobility above the…

Strongly Correlated Electrons · Physics 2012-11-14 Y. Kozuka , M. Kim , H. Ohta , Y. Hikita , C. Bell , H. Y. Hwang

Observation of replica bands in the ARPES spectra of the single-layer FeSe on strontium titanate substrate revealed a phonon component among mechanisms behind high Tc superconductivity there. We study the interaction of the in-layer FeSe…

Superconductivity · Physics 2016-02-24 Lev P. Gor'kov

We discuss the recently discovered system $Sr Cu_2 (BO_3)_2$, a realization of an exactly solvable model proposed two decades earlier. We propose its interpretation as a Mott Hubbard insulator. The possible superconducting phase arising…

Strongly Correlated Electrons · Physics 2009-11-07 B Sriram Shastry , Brijesh Kumar

The mechanism of superconductivity in ${\rm Sr}_{2}{\rm RuO}_{4}$ is studied using a degenerate Hubbard model within the weak coupling theory. When the system approaches the orbital instability which is realized due to increasing the…

Superconductivity · Physics 2009-11-07 Tetsuya Takimoto

Fullerene solids doped with alkali metals (A$_3$C$_{60}$, A = K, Rb, Cs) exhibit a superconducting transition temperature ($T_c$) as high as 40 K, and their unconventional superconducting properties have been a subject of debate. With…

Superconductivity · Physics 2023-10-24 Jianyu Li , Zhangkai Cao , Jiahao Su , Ruipeng Wang , Haipeng Li , Yusuke Nomura , Xiaosen Yang , Ho-Kin Tang

Although there is no complete theory of high temperature superconductivity, the importance of CuO$_2$ planes in cuprate superconductors is confirmed from both theory and experiments. Strong Coulomb repulsion between electrons on the CuO$_2$…

Supercapacitors have recently gained popularity as possible energy storage systems due to their high cycling ability and increased power density. However, one of the major drawbacks of supercapacitors is that they have a low energy density,…

Materials Science · Physics 2019-08-29 Sadhana Lolla , Xuan Luo

Superconducting domes, ubiquitous across a variety of quantum materials, are often understood as a window favorite for pairing opened by the fluctuations of competing orders. Yet, a quantitative understanding of how such a window closes is…

The superconducting systems emerging from topological insulators upon metal ion intercalation or application of high pressure are ideal for investigation of possible topological superconductivity. In this context, Sr-intercalated…

The quest for materials that simultaneously exhibit superconductivity and nontrivial topology has drawn significant attention in recent years, driven by their potential to host exotic quantum states. Their unique coexistence often leads to…

Superconductivity · Physics 2025-10-16 Arafat Rahman , Alamgir Kabir , Tareq Mahmud

We report on superconductivity in single crystals of SrTiO$_{3-\delta}$ with carrier densities $\textit{n} < 1.4 \times10^{18}cm^{-3}$, where only a single band is occupied. For all samples in this regime, the resistive transition occurs at…

This review presents a summary and evaluations of the superconducting properties of the layered ruthenate Sr2RuO4 as they are known in the autumn of 2011. This paper appends the main progress that has been made since the preceding review by…

Superconductivity · Physics 2011-12-30 Yoshiteru Maeno , Shunichiro Kittaka , Takuji Nomura , Shingo Yonezawa , Kenji Ishida

While the conducting CuO$_2$ planes in cuprate superconductors have been widely recognized as a crucial component in producing high superconducting $T_\text{c}$, recent experimental and theoretical studies on…

Superconductivity · Physics 2024-11-21 Xin Du , Hui-Hui He , Xiao-Xiao Man , Zhong-Yi Lu , Kai Liu

Two hydrogen-rich materials, H$_3$S and LaH$_{10}$, synthesized at megabar pressures, have revolutionized the field of condensed matter physics providing the first glimpse to the solution of the hundred-year-old problem of room temperature…

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