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相关论文: Superconductivity without Local Inversion Symmetry…

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We theoretically investigate the appearance of spatially modulated superconducting states in mesoscopic superconducting thin-wall cylinders in a magnetic field at low temperatures. Quantization of the electron motion around the…

超导电性 · 物理学 2015-06-12 K. Aoyama , R. Beaird , D. E. Sheehy , I. Vekhter

Spin-momentum locking is essential to the spin-split Fermi surfaces of inversion-symmetry broken materials, which are caused by either Rashba-type or Zeeman-type spin-orbit coupling (SOC). While the effect of Zeeman-type SOC on…

The two-dimensional electron gas at the LaTiO3/SrTiO3 or LaAlO3/SrTiO3 oxide interfaces becomes superconducting when the carrier density is tuned by gating. The measured resistance and superfluid density reveal an inhomogeneous…

Monolayer transition metal dichalcogenides (TMDs) with strong spin-orbit coupling combined with broken inversion symmetry, leading to a coupling of spin and valley degrees of freedom, make these materials highly interesting for potential…

介观与纳米尺度物理 · 物理学 2020-09-23 Liang Xilong , Qin Chengbing , Gao Yan , Han Shuangping , Zhang Guofeng , Chen Ruiyun , Hu Jianyong , Xiao Liantuan , Jia Suotang

We present a technique for engineering quantum magnets via ultracold polar molecules in optical lattices and explore exotic interplay between its spin superfluidity and solidity. The molecular ground and first excited rotational states are…

量子气体 · 物理学 2009-10-27 Hongyi Yu , W. M. Liu , Chaohong Lee

Superconductivity in materials without spatial inversion symmetry is studied. We show that in contrast to common believe, spin-triplet pairing is not entirely excluded in such systems. Moreover, paramagnetic limiting is analyzed for both…

强关联电子 · 物理学 2009-11-10 P. Frigeri , D. F. Agterberg , A. Koga , M. Sigrist

Tunable synthetic spin-orbit coupling (s-SOC) is one of the key challenges in various quantum systems, such as ultracold atomic gases, topological superconductors, and semiconductor quantum dots. Here we experimentally demonstrate…

We study a mechanism for superconductivity in quasi-one-dimensional materials with Ising anisotropy. In an isolated chain Ising anisotropy opens a spin gap; if inter-chain coupling is sufficiently weak, single particle hopping is suppressed…

强关联电子 · 物理学 2009-11-07 A. V. Rozhkov , A. J. Millis

In this paper, we discuss the c axis optical conductivity Re [sigma_c(omega)] in the high T_c superconductors, in the superconducting state. The basic premise of this work is that electrons travelling along the c axis between adjacent CuO_2…

超导电性 · 物理学 2009-10-30 W. A. Atkinson , J. P. Carbotte

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…

超导电性 · 物理学 2022-08-22 Shengshan Qin , Chen Fang , Fu-chun Zhang , Jiangping Hu

The presence of a non-centrosymmetric crystal structure and in-plane mirror symmetry allows an Ising spin-orbit coupling to form in some two-dimensional materials. Examples include transition metal dichalcogenide superconductors like…

超导电性 · 物理学 2025-03-04 Subhojit Roy , Andreas Kreisel , Brian M. Andersen , Shantanu Mukherjee

Effect of geometry on the superconductivity is considered. It is shown that the for nearly two dimensional BCS systems the critical temperature is rapidly increased with decreasing the thickness of the layer. The result is expected to be…

凝聚态物理 · 物理学 2007-05-23 N. M. Khue , Le Ngoc Minh , Tran Tri Lan , Do Huu Nha

The effects of absence of inversion symmetry on superconducting states are investigated theoretically. In particular we focus on the noncentrosymmetric compounds which have the cubic symmetry $O$ like Li$_2$Pt$_3$B. An appropriate and…

超导电性 · 物理学 2008-03-04 Chi-Ken Lu , Sungkit Yip

Vortex cores in a superconductor can develop structure and manifest competing orders. In strong magnetic fields, the inter-vortex distance can become short enough for vortex cores to overlap, giving rise to long ranged textures. We show…

超导电性 · 物理学 2019-09-25 V. Saran , Madhuparna Karmakar , R. Ganesh

We study the interplay between superconductivity and altermagnetism in disordered systems using recently derived quantum kinetic transport equations. Starting from this framework, we derive the Ginzburg-Landau free energy and identify, in…

We present the zero-temperature superconducting (SC) ground states of the two-orbital asymmetric $t-J$ model on a square lattice by means of the auxiliary-boson approach. Besides the two-gap SC phase, we find an orbital selective SC (OSSC)…

超导电性 · 物理学 2008-08-29 Feng Lu , Cui-Zhi Wang Wei-Hua Wang , Liang-Jian Zou

We develop a theory of quasiparticle localization in superconductors in situations without spin rotation invariance. We discuss the existence, and properties of superconducting phases with localized/delocalized quasiparticle excitations in…

超导电性 · 物理学 2009-10-31 T. Senthil , Matthew P. A. Fisher

We illuminate the superconducting phases in [001]-grown-noncentrosymmetric quantum wells with an anisotropic spin-orbit coupling in the presence of on-site Hubbard interaction. Within the random phase approximation, we investigate the…

超导电性 · 物理学 2019-06-20 Mehdi Biderang , Mohammad-Hossein Zare , Alireza Akbari

Intrinsic Rashba spin-orbital coupling (SOC) can exist in centrosymmetric materials with local inversion symmetry breaking. Here we show that such a SOC can induce topological superconductivity together with an in-plane Zeeman field in…

超导电性 · 物理学 2024-09-05 Jiong Mei , Kun Jiang , Shengshan Qin , Jiangping Hu

Spin-orbital coupling (SOC) and parity-time ($\mathcal{PT}$) symmetry both have attracted paramount research interest in condensed matter physics, cold atom physics, optics and acoustics to develop spintronics, quantum computation, precise…

量子气体 · 物理学 2022-06-29 Jieli Qin , Lu Zhou , Guangjiong Dong