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A model is presented for two-dimensional superconductivity at semiconductor-on-metal interfaces mediated by Coulomb interactions between electronically-active interface charges in the semiconductor and screening charges in the metal. The…

Superconductivity · Physics 2025-05-06 Dale R. Harshman , Anthony T. Fiory

The discovery of high temperature superconductivity in cuprates was possible only through an intimate knowledge of perovskite oxides which have been synthesized and characterized for decades at the IBM in the Z\"urich laboratoty. Especially…

Superconductivity · Physics 2010-10-08 Annette Bussmann-Holder , K. Alex Müller

The electronic properties of interfaces between two different solids can differ strikingly from those of the constituent materials. For instance, metallic conductivity, and even superconductivity, have been recently discovered at interfaces…

Materials Science · Physics 2009-11-13 H. Dias Alves , A. S. Molinari , H. Xie , A. F. Morpurgo

A generalized model for the critical temperature Tc of superconducting bilayers is presented, which is valid with no restrictions to film thicknesses, Tc of the layers and interface resistivity. The model is verified experimentally on a…

Superconductivity · Physics 2009-11-10 G. Brammertz , A. A. Golubov , P. Verhoeve , R. den Hartog , A. Peacock , H. Rogalla

Oxide heterostructures have repeatedly been shown to display apical properties at the interfaces, some of which favorable to the formation of two-dimensional electron systems, as well as high transition temperature superconductivity. In…

Superconductivity · Physics 2022-12-21 Wai Hei Terence Tse , Carla Lupo , Evan Sheridan , Evgeny Plekhanov , Cedric Weber

Unconventional superconductivity in bilayer graphene has been reported for twist angles $\theta$ near the first magic angle and charged electrostatically with holes near half filling of the lower flat bands. A maximum superconducting…

Superconductivity · Physics 2019-08-06 Dale R. Harshman , Anthony T. Fiory

The recent discovery of superconducting interfaces in the $KTaO_3 (111)$-based heterostructures is intriguing, since a much higher superconducting critical temperature (TC ~ 2 K) is achieved compared to that in the $SrTiO_3$…

Superconductivity · Physics 2021-11-12 Weiliang Qiao , Yang Ma , Jiaojie Yan , Wenyu Xing , Yunyan Yao , Ranran Cai , Boning Li , Richen Xiong , X. C. Xie , Xi Lin , Wei Han

Understanding the physical and chemical processes at the interface of metals and topological insulators is crucial for developing the next generation of topological quantum devices. Here we report the discovery of robust superconductivity…

Superconductivity · Physics 2026-01-07 Kaixuan Fan , Ze Hua , Siyao Gu , Peng Zhu , Guangtong Liu , Hechen Ren , Ruiwen Shao , Zhiwei Wang , Li Lu , Fan Yang

We predict parametrically strong enhancement of the thermoelectric effect in metallic bilayers consisting of two superconductors separated by a spin-active interface. The physical mechanism for such an enhancement is directly related to…

Superconductivity · Physics 2015-04-03 Mikhail S. Kalenkov , Andrei D. Zaikin

The superconducting transition temperature, Tc, of bilayers comprising underdoped La2-xSrxCuO4 films capped by a thin heavily overdoped metallic La1.65Sr0.35CuO4 layer, is found to increase with respect to Tc of the bare underdoped films.…

Superconductivity · Physics 2008-08-12 Ofer Yuli , Itay Asulin , Leonid Iomin , Gad Koren , Oded Millo , Dror Orgad

The superconducting transition temperature ($T_{\mathrm{c}}$) of trilayer or quadruple-layer cuprates typically surpasses that of single-layer or bilayer systems. This observation is often interpreted within the ``composite picture", where…

Interfacial superconductivity has manifested itself in various types of heterostructures: band insulator-band insulator, band insulator-Mott insulator, and Mott insulator-metal. We report the observation of high-temperature…

Superconductivity · Physics 2022-01-25 Lele Ju , Tianshuang Ren , Zhu Li , Zhongran Liu , Chuanyu Shi , Yuan Liu , Siyuan Hong , Jie Wu , He Tian , Yi Zhou , Yanwu Xie

We propose to increase the superconducting transition temperature Tc of strongly correlated materials by designing heterostructures which exhibit a high pairing energy as a result of magnetic fluctuations. More precisely, applying an…

Superconductivity · Physics 2015-05-20 Karyn Le Hur , Chung-Hou Chung , I. Paul

The coexistence of superconductivity and ferroelectricity is rare due to their conflicting requirements: superconductivity relies on free charge carriers, whereas ferroelectricity typically occurs in insulating systems. At LaAlO3/KTaO3…

Superconductivity · Physics 2025-06-23 Meng Zhang , Ming Qin , Yanqiu Sun , Siyuan Hong , Yanwu Xie

It has been proposed that the superconducting transition temperature $T_{\mathrm{c}}$ of an unconventional superconductor with a large pairing scale but strong phase fluctuations can be enhanced by coupling it to a metal. However, the…

Superconductivity · Physics 2022-12-05 Philip M. Dee , Steven Johnston , Thomas Maier

Superconductivity at the interface of a heterostructure confined to nanometer-sized scale offers unique opportunities to study the exotic physics of two-dimensional superconductivity. The realization of superconductivity at the interface…

Overheating has emerged as a primary challenge constraining the reliability and performance of next-generation high-performance electronics, such as chiplets and (ultra)wide bandgap electronics. Advanced heterogeneous integration not only…

When two different electronic materials are brought together, the resultant interface often shows unexpected quantum phenomena, including interfacial superconductivity and Fu-Kane topological superconductivity (TSC). Here, we use molecular…

Superconducting-proximity topological insulators (STIs) have garnered significant research attention over the past two decades. In this Letter, we demonstrate that a low-dimensional STI in the topological-nontrivial phase (TP) exhibits an…

Superconductivity · Physics 2024-09-02 Yajiang Chen , Ke-Ji Chen , Jia-Ji Zhu , A. A. Shanenko

Besides the cuprate superconductors lead-doped barium bismuthate still attracts intense interest concerning its relatively high critical temperature and the nature of its superconductivity in vicinity to a charge density wave ordered…

Superconductivity · Physics 2017-09-27 Betina Meir , Stefan Gorol , Thilo Kopp , German Hammerl