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Superconductivity of quasi-one-dimensional organic conductors with a quarter-filled band is investigated using the two-loop renormalization group approach to the extended Hubbard model for which both the single electron hopping t_{\perp}…

Strongly Correlated Electrons · Physics 2010-01-28 Kazuto Kajiwara , Masahisa Tsuchiizu , Yoshikazu Suzumura , Claude Bourbonnais

Spin-triplet superconductivity is known to be a rare quantum phenomenon. Here we show that nonsymmorphic crystalline symmetries can dramatically assist spin-triplet superconductivity in the presence of spin-orbit coupling. Even with a weak…

Superconductivity · Physics 2022-08-22 Shengshan Qin , Chen Fang , Fu-chun Zhang , Jiangping Hu

The high temperature superconductivity in cuprate materials1 has puzzled scientists over twenty years. We must find a new way to understand superconductivity. It is found the spin-charge correlation may dominate the superconductivity2, and…

General Physics · Physics 2009-04-11 Tian De Cao

We study how an inversion-breaking quantum critical point affects the ground state of a one-dimensional electronic liquid with repulsive interaction and spin-orbit coupling. We find that regardless of the interaction strength, the critical…

Superconductivity · Physics 2017-06-07 Jonathan Ruhman , Vladyslav Kozii , Liang Fu

We explore possible superconducting states in $t_{2g}$ multi-orbital correlated electron systems with strong spin-orbit coupling (SOC). In order to study such systems in a controlled manner, we employ large-scale dynamical mean-field theory…

Strongly Correlated Electrons · Physics 2014-10-24 Zi Yang Meng , Yong Baek Kim , Hae-Young Kee

A recent experiment showed that proximity induced Ising spin-orbit coupling enhances the spin-triplet superconductivity in Bernal bilayer graphene. Here, we show that, due to the nearly perfect spin rotation symmetry of graphene, the…

We consider extended versions of the Hubbard model which contain additional interactions between nearest neighbours. In this letter we show that a large class of these models has a superconducting ground state in arbitrary dimensions. In…

Condensed Matter · Physics 2009-10-22 Jan de Boer , Vladimir E. Korepin , Andreas Schadschneider

Motivated by recent experimental findings, we have developed a theory of the superconducting state for 2D metals without inversion symmetry modeling the geometry of a surface superconducting layer in a field-effect-transistor or near the…

Superconductivity · Physics 2009-11-07 Lev P. Gor'kov , Emmanuel I. Rashba

We present a general thermodynamic theory that describes phases and phase transitions of ferromagnetic superconductors with spin-triplet electron Cooper pairing. The theory is based on extended Ginzburg-Landau expansion in powers of…

Superconductivity · Physics 2016-09-08 Diana V. Shopova , Dimo I. Uzunov

Experimental results on the metal-insulator transitions and the anomalous properties of strongly interacting two-dimensional electron systems are reviewed and critically analyzed. Special attention is given to recent results for the…

Strongly Correlated Electrons · Physics 2009-09-29 A. A. Shashkin

Unconventional superconductivity in Sr$_{2}$RuO$_{4}$ has been intensively studied for decades. The origin and nature of the pairing continues to be widely debated, in particular, the possibility of a triplet origin of Cooper pairs.…

Strongly Correlated Electrons · Physics 2019-12-20 Swagata Acharya , Dimitar Pashov , Cédric Weber , Hyowon Park , Lorenzo Sponza , Mark van Schilfgaarde

We consider the superconducting and Mott-insulating states for the twisted bilayer graphene, modeled as two narrow-band system of electrons with appreciable intraatomic Coulomb interactions. The interaction induces kinetic exchange which…

Superconductivity · Physics 2018-08-29 Maciej Fidrysiak , Michał Zegrodnik , Józef Spałek

The magnetization in a superconductor induced due to the inverse proximity effect is investigated in hybrid bilayers containing a superconductor and a ferromagnetic insulator or a strongly spin-polarized ferromagnetic metal. The study is…

Superconductivity · Physics 2021-02-03 Vladimir Yagovtsev , Natalia Pugach , Matthias Eschrig

The interplay between unconventional superconductivity and altermagnetic order has attracted much attentions. In particular, whether spin-triplet superconductivity can be achieved by suppressing altermagnetism remains an open issue. We…

Superconductivity · Physics 2025-09-15 Xin Ma , Siqi Wu , Zilong Li , Lunhui Hu , Jianhui Dai , Chao Cao

We report on the observation of bulk superconductivity from dc magnetization measurements in a cylindrical single crystal of CuxBi2Se3. The magnitude of the magnetization in the Meissner state is very small and the magnetic-field dependence…

Superconductivity · Physics 2015-05-28 Pradip Das , Yusuke Suzuki , Masashi Tachiki , Kazuo Kadowaki

Spontaneous symmetry breaking is an important concept for understanding physics ranging from the elementary particles to states of matter. For example, the superconducting state breaks global gauge symmetry, and unconventional…

Superconductivity · Physics 2016-09-13 K. Matano , M. Kriener , K. Segawa , Y. Ando , Guo-qing Zheng

In superconductors, electrons with spin ${s=1/2}$ form Cooper pairs whose spin structure is usually singlet (${S=0}$) or triplet (${S=1}$). When the electronic structure near the Fermi level is characterized by fermions with angular…

Newly-discovered superconductor UTe$_2$ is a strong contender for a topological spin-triplet state wherein a multi-component order parameter arises from two nearly-degenerate superconducting states. A key issue is whether both of these…

Strongly Correlated Electrons · Physics 2021-12-10 S. M. Thomas , C. Stevens , F. B. Santos , S. S. Fender , E. D. Bauer , F. Ronning , J. D. Thompson , A. Huxley , P. F. S. Rosa

Spin-triplet superconductivity is a key platform for topological quantum computing, yet its experimental realization and control in solid-state materials remain a significant challenge. For this purpose, we propose an ultrafast optical…

Strongly Correlated Electrons · Physics 2025-12-29 Zecheng Shen , Chendi Xie , Wei-Chih Chen , Yao Wang

We consider the possibility of quantum phase transitions in the ground state of triplet superconductors where particle density is the tunning parameter. For definiteness, we focus on the case of one band quasi-one-dimensional triplet…

Superconductivity · Physics 2016-08-16 R. W. Cherng , C. A. R. Sá de Melo
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