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We report on the influence of stray fields for both low and high magnetic fields applied parallel to trilayers consisting of a low-T Nb interlayer and two outer Ni Fe layers having in-plane anisotropy. At low magnetic fields these trilayers…

超导电性 · 物理学 2009-02-03 D. Stamopoulos , E. Manios , N. Papachristos , I. Aristomenopoulou

It is generally believed that superconductivity and magnetism are two antagonistic long-range phenomena. However, as it was preliminarily highlighted in D. Stamopoulos et al. [Phys. Rev. B 75, 014501 (2007)] and extensively studied in this…

超导电性 · 物理学 2009-11-13 D. Stamopoulos , E. Manios , M. Pissas

In (S/F) hybrids the suppression of superconductivity by the exchange field h_ex of the ferromagnet can be partially lifted when different directions of h_ex are sampled simultaneously by the Cooper pair. In F/S/F trilayer geometries where…

超导电性 · 物理学 2009-11-10 A. Yu. Rusanov , M. Hesselberth , J. Aarts , A. I. Buzdin

Motivated by the recent rapid progress in high-$T_c$ nickelate superconductors, we comprehensively study the physical properties of the alternating bilayer trilayer stacking nickelate La$_7$Ni$_5$O$_{17}$. The high-symmetry phase of this…

超导电性 · 物理学 2025-07-23 Yang Zhang , Ling-Fang Lin , Adriana Moreo , Thomas A. Maier , Elbio Dagotto

Understanding the magnetic ground state of Ruddlesden-Popper nickelates is crucial, as these materials exhibit superconductivity under high pressure and host competing electronic orders that may play a key role in the pairing mechanism. In…

In this work we study the transport properties of hybrids that consist of exchange biased ferromagnets (FMs) combined with a low-Tc superconductor (SC). Not only different FMs but also various structural topologies have been investigated:…

超导电性 · 物理学 2007-05-23 D. Stamopoulos , E. Manios , M. Pissas

Electronic transport and magnetization measurements were performed on La$_{0.7}$Ca$_{0.3}$MnO$_3$/YBa$_2$Cu$_3$O$_{7-\delta}$ (LCMO/YBCO) bilayers below the superconducting transition temperature in order to study the interaction between…

超导电性 · 物理学 2015-05-27 T. Hu , H. Xiao , C. Visani , J. Santamaria , C. C. Almasan

We have studied the influence of the magnetization on the superconducting transition temperature ($T_c$) in bi- and trilayers consisting of the half-metallic ferromagnet La$_{0.67}$Sr$_{0.33}$MnO$_3$ (LSMO) and the high-temperature…

超导电性 · 物理学 2009-04-15 M. van Zalk , M. Veldhorst , A. Brinkman , J. Aarts , H. Hilgenkamp

We present a comprehensive study on the magnetization reversal in Fe/NiFe bilayer system by alternating the order of the magnetic layers. All the samples show growth-induced uniaxial magnetic anisotropy due to oblique angle deposition…

The discovery of $T_c\sim 80$~K superconductivity in pressurized La$_3$Ni$_2$O$_7$ has launched a new platform to study high-temperature superconductivity. Using non-perturbative dynamic cluster approximation quantum Monte Carlo…

强关联电子 · 物理学 2025-06-10 Thomas A. Maier , Peter Doak , Ling-Fang Lin , Yang Zhang , Adriana Moreo , Elbio Dagotto

The role of spin orbit interaction in superconducting proximity effect is an area of intense research effort. Recent theoretical and experimental works investigate the possible role of spin-orbit interaction in generating spin-triplet pair…

Scattering of spin-up and spin-down electrons while passing through a ferromagnetic domain wall leads to an additional resistance for transport current, usually observed prominently in constricted magnetic structures. In this report, we use…

超导电性 · 物理学 2023-04-11 Ekta Bhatia , Zainab Hussain , V. Raghavendra Reddy , Zoe H. Barber , Kartik Senapati

The discovery of 80 K superconductivity in pressurized bilayer Ruddlesden-Popper (RP) nickelate La$_3$Ni$_2$O$_7$ has established a new high-temperature superconductor family. The quest to understand the governing principles of RP nickelate…

Magnetic proximity effect of a topological insulator in contact with a ferromagnet is reported in thin film bilayers of 15 nm thick $BiSbTe_3$ on either 15 or 40 nm thick $SrRuO_3$ on (100) $SrTiO_3$ wafers. Magneto transport results of the…

强关联电子 · 物理学 2018-02-14 Gad Koren

Nickel/Bismuth (Ni/Bi) bilayers have recently attracted attention due to the occurrence of time-reversal symmetry breaking in the superconducting state. Here, we report on the structural, magnetic and electric characterization of thin film…

Heterostructures of normal metals (N) and magnetic insulators (F) show paradigmatic effects, such as spin-Hall magnetoresistance and electric drag currents. These effects are linear in the applied electric field $E(\omega)$. Normal-metal…

介观与纳米尺度物理 · 物理学 2026-01-21 Oliver Franke , Piet W. Brouwer

Nickel/bismuth (Ni/Bi) bilayers are a promising platform for exploring unconventional superconductivity. Ferromagnetic Ni is coupled to Bi, a strong spin orbit metal that only becomes superconducting below approx 10 mK, forming a bilayer…

The discovery of high-temperature superconductivity in bilayer nickelate La$_{3}$Ni$_{2}$O$_{7}$ necessitates a minimal theoretical model that unifies the superconducting phase with the spin-density-wave (SDW) phase without external…

强关联电子 · 物理学 2025-12-17 Hui Yang , Ya-Hui Zhang

The superconducting and magnetic properties of Nb/Pd_1-xFe_x/Nb triple layers with constant Nb layer thickness d_Nb=200 A and different interlayer thicknesses are investigated. The thickness dependence of the magnetization and of the…

超导电性 · 物理学 2016-08-31 M. Schoeck , C. Suergers , H. v. Loehneysen

The discovery of high-Tc superconductivity around 80K in bilayer nickelate La3Ni2O7 under high pressure has expanded the family of high-Tc superconductors above the nitrogen boiling temperature. Recent studies have further shown that…

超导电性 · 物理学 2025-02-04 H C Regan B. Bhatta , Xiaoliang Zhang , Yong Zhong , Chunjing Jia
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