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The low-energy limits of the string theory lead to the higher-order curvature corrections for Einstein gravity. Also, they give the higher-order derivative corrections for the Maxwell or linear electrodynamics, which suggests the nonlinear…

高能物理 - 理论 · 物理学 2019-09-09 Cao H. Nam

Based on an analytic scheme and neglecting the back reaction effect several crucial properties of holographic $ s $- wave superconductors have been investigated in the presence of an external magnetic field in the background of a $ D $…

高能物理 - 理论 · 物理学 2012-12-12 Dibakar Roychowdhury

We have analytically investigated the effects of non-linearity on the free energy and thermodynamic geometry of holographic superconductors in $2+1 -$dimensions. The non-linear effect is introduced by considering the coupling of the massive…

高能物理 - 理论 · 物理学 2017-07-11 Debabrata Ghorai , Sunandan Gangopadhyay

The properties of $(d-1)$-dimensional $s$-wave holographic superconductor in the presence of power-Maxwell field is explored. We study the probe limit in which the scalar and gauge fields do not backreact on the background geometry. Our…

高能物理 - 理论 · 物理学 2017-05-09 A. Sheykhi , F. Shamsi , S. Davatolhagh

It is very interesting that all holographic superconductors, such as s-wave, p-wave and d-wave holographic superconductors, show the universal mean-field critical exponent 1/2 at the critical temperature, just like Gindzburg-Landau (G-L)…

高能物理 - 理论 · 物理学 2012-04-30 Hua-Bi Zeng , Xin Gao , Yu Jiang , Hong-Shi Zong

We analytically as well as numerically disclose the effects of the higher order correction terms in the gravity and in the gauge field on the properties of $s$-wave holographic superconductors. On the gravity side, we consider the higher…

高能物理 - 理论 · 物理学 2018-02-27 Ahmad Sheykhi , Afsoon Ghazanfari , Amin Dehyadegari

In this paper, we have studied the effect of Born-Infeld electrodynamics in holographic $p$-wave superconductors with massive vector condensation. We have analysed this model in the probe limit using a variational method known as the…

高能物理 - 理论 · 物理学 2020-03-31 Ankur Srivastav , Debabrata Ghorai , Sunandan Gangopadhyay

We investigate analytically as well as numerically the properties of s-wave holographic superconductors in $d$-dimensional spacetime and in the presence of Logarithmic nonlinear electrodynamics. We study three aspects of these kind of…

高能物理 - 理论 · 物理学 2018-04-17 Ahmad Sheykhi , Doa Hashemi Asl , Amin Dehyadegari

The Meissner-Ochsenfeld effect is demonstrated for the first time at room temperature. The diamagnetic response of a silicon nanostructure with edge channels covered by chains of negative U dipole boron centers is studied when put in…

介观与纳米尺度物理 · 物理学 2026-02-11 N. T. Bagraev , N. A. Dovator , L. E. Klyachkin , A. M. Malyarenko

Temperature dependence of the upper critical field $H_{c2}$ of the Dirac semi - metal (DSM) with phonon mediated pairing is considered within semi - classical approximation. The low temperature dependence deviates from conventional BCS…

超导电性 · 物理学 2018-12-05 Baruch Rosenstein , B. Ya. Shapiro , Dingping Li

Pressure is a key parameter for tuning or revealing superconductivity in materials and compounds. Many measurements of superconducting phase transition temperatures have been conducted using diamond anvil cells (DACs), which provide a wide…

We employ the matching method to analytically investigate the holographic superconductors with Lifshitz scaling in an external magnetic field. We discuss systematically the restricted conditions for the matching method and find that this…

高能物理 - 理论 · 物理学 2014-07-22 Zixu Zhao , Qiyuan Pan , Jiliang Jing

We study the effect of magnetic field $B$ on the critical temperature $T_{c}$ of the confinement-deconfinement phase transition in hard-wall AdS/QCD, and holographic duals of flavored and unflavored $\mathcal{N}=4$ super-Yang Mills theories…

高能物理 - 理论 · 物理学 2015-05-28 Kiminad A. Mamo

We study the Gauss-Bonnet (GB) holographic superconductors in the presence of an external magnetic field. We describe the phenomena away from the probe limit. We derive the critical magnetic field of the GB holographic superconductors with…

综合物理 · 物理学 2011-12-13 M. R. Setare , D. Momeni

The present review is given on the paramagnetic Meissner effect observed in conventional and ceramic high-Tc superconductors. We discuss two mechanisms leading to this phenomenon: the d-wave and the flux compensation. It is shown that the…

超导电性 · 物理学 2009-11-10 Mai Suan Li

We studied holographic insulator/superconductor phase transition in the framework of Born-Infeld electrodynamics both numerically and analytically. First we numerically study the effects of the Born-Infeld electrodynamics on the phase…

高能物理 - 理论 · 物理学 2012-12-24 Nan Bai , Yi-Hong Gao , Guan-Bu Qi , Xiao-Bao Xu

In this paper, we have analytically computed the conductivity of holographic superconductors in the framework of Born-Infeld electrodynamics taking into account the backreaction of the matter fields on the bulk spacetime metric. The effect…

高能物理 - 理论 · 物理学 2018-06-12 Debabrata Ghorai , Sunandan Gangopadhyay

Based on the analytical technique the effect of the static magnetic field on the s-wave holographic superconductor with dark matter sector of U(1)-gauge field type coupled to the Maxwell field has been examined. In the probe limit, we…

高能物理 - 理论 · 物理学 2015-06-23 L. Nakonieczny , M. Rogatko , K. I. Wysokinski

In this work, we have analytically computed the holographic transport coefficients for (2 + 1)- dimensional strongly coupled field theories, placed in a spatially modulated chemical potential along the x-direction, in the presence of…

高能物理 - 理论 · 物理学 2023-06-05 Ankur Srivastav , Sunandan Gangopadhyay , Ashis Saha

Improving the critical temperature (TC), critical magnetic field (HC), and critical current (JC) of superconducting materials has always been one of the most significant challenges in the field of superconductivity, but progress has been…

超导电性 · 物理学 2023-08-23 Yao Qi , Duo Chen , Yongbo Li , Chao Sun , Qingyu Hai , Miao Shi , Honggang Chen , Xiaopeng Zhao