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The magnetic field effect in the Josephson tunneling between two d-wave superconductors are investigated. When the crystal orientation of one (or each) superconductor relative to the interface normal is such that midgap states exist at the…

超导电性 · 物理学 2009-10-31 X. -Z. Yan , C. -R. Hu

The spin flip of the conduction electrons at the interface of a ferromagnetic and a nonmagnetic part of a metallic wire, suspended between two electrodes, is shown to tort the wire when a current is driven through it. In order to enhance…

强关联电子 · 物理学 2016-10-26 Peter Fulde , Stefan Kettemann

We find proximity-induced spontaneous spin and electric surface currents, at all temperatures below the superconducting T_c, in an isotropic s-wave superconductor deposited with a thin ferromagnetic metal layer with spin-orbit interaction.…

超导电性 · 物理学 2009-11-10 I. V. Bobkova , Yu. S. Barash

In multiferroic oxides with a transverse helical magnetic order, the magnetization exchange coupling is sinusoidally space-dependent. We theoretically investigate the spin-dependent electron grating effect in…

介观与纳米尺度物理 · 物理学 2012-04-30 Rui Zhu

We predict that a novel bias-voltage assisted magnetization reversal process will occur in Mn doped II-VI semiconductor quantum wells or heterojunctions with carrier induced ferromagnetism. The effect is due to strong exchange-coupling…

材料科学 · 物理学 2009-11-07 Byounghak Lee , T. Jungwirth , A. H. MacDonald

The superconducting diode effect is an asymmetry in the critical current with respect to the supercurrent polarity. One impetus driving recent interest in the effect is its dependence on intrinsic or microscopic symmetry breaking…

We report on large thermoelectric effects in superconductor-ferromagnet tunnel junctions in proximity contact with the ferromagnetic insulator europium sulfide. The combination of a spin-splitting field and spin-polarized tunnel conductance…

超导电性 · 物理学 2017-06-14 S. Kolenda , C. Sürgers , G. Fischer , D. Beckmann

We study a triplet spin valve obtained by intercalating a triplet superconductor spacer between two ferromagnetic regions with non-collinear magnetizations. We demonstrate that the magnetoresitance of the triplet spin valve depends on the…

介观与纳米尺度物理 · 物理学 2013-12-02 F. Romeo , R. Citro

We study theoretically the dc Josephson tunnel current for a junction of two proximity S/F bilayers of a massive superconductor (S) / a thin ferromagnet (F) separated by an insulating (I) barrier. The dependence of the critical current on…

超导电性 · 物理学 2009-11-07 V. N. Krivoruchko , E. A. Koshina

Using a simple quantum-mechanical model, we explore a tunneling anisotropic magnetoresistance (TAMR) effect in ferroelectric tunnel junctions (FTJs) with a ferromagnetic electrode and a ferroelectric barrier layer, which spontaneous…

介观与纳米尺度物理 · 物理学 2019-09-04 A. Alexandrov , M. Ye. Zhuravlev , Evgeny Y. Tsymbal

We investigate electronic thermal rectification in ferromagnetic insulator-based superconducting tunnel junctions. Ferromagnetic insulators coupled to superconductors are known to induce sizable spin splitting in the superconducting density…

介观与纳米尺度物理 · 物理学 2020-05-13 F. Giazotto , F. S. Bergeret

The effects of the spin-orbit interaction on the tunneling magnetoresistance of ferromagnet/semiconductor/normal metal tunnel junctions are investigated. Analytical expressions for the tunneling anisotropic magnetoresistance (TAMR) are…

介观与纳米尺度物理 · 物理学 2009-05-06 Alex Matos-Abiague , Jaroslav Fabian

The interplay between superconductivity and ferromagnetism has long been pursued as a route to unconventional Josephson effects, yet suitable material platforms remain limited. Here we report Josephson junctions based on epitaxial…

New mechanism of magnetoresistance, based on tunneling-emission of spin polarized electrons from ferromagnets (FM) into semiconductors (S) and precession of electron spin in the semiconductor layer under external magnetic field, is…

材料科学 · 物理学 2009-11-10 A. M. Bratkovsky , V. V. Osipov

We develop a low-temperature, long-wavelength theory for the interfacial spin Seebeck effect (SSE) in easy-axis antiferromagnets. The field-induced spin-flop (SF) transition of N\'eel order is associated with a qualitative change in SSE…

介观与纳米尺度物理 · 物理学 2020-07-29 Derek Reitz , Junxue Li , Wei Yuan , Jing Shi , Yaroslav Tserkovnyak

Ferromagnetic superconductors, where ferromagnetism and superconductivity coexist despite their antagonism, exhibit strikingly diverse behaviors. Depending on the interplay between the ferromagnetic exchange field and the superconducting…

超导电性 · 物理学 2025-09-09 Xusheng Wang , Lianyi He , Shuaihua Ji

We theoretically study the superconducting diode effect in a three-terminal Josephson junction. The diode effect in superconducting systems is typically related to the presence of a difference in the critical currents for currents flowing…

超导电性 · 物理学 2024-08-07 Jorge Huamani Correa , Michal P. Nowak

Conventional spin-singlet superconductivity that deeply penetrates into ferromagnets is typically killed by the exchange interaction, which destroys the spin-singlet pairs. Under certain circumstances, however, superconductivity survives…

介观与纳米尺度物理 · 物理学 2019-03-27 Taketomo Nakamura , Le Duc Anh , Yoshiaki Hashimoto , Shinobu Ohya , Masaaki Tanaka , Shingo Katsumoto

We study proximity effect in diffusive ferromagnet/normal-metal/superconductor junction with precessing magnetization of the ferromagnet. We find that the odd-frequency pairing induced in the normal metal is modified by spin pumping from…

超导电性 · 物理学 2015-05-13 Takehito Yokoyama , Yaroslav Tserkovnyak

We theoretically study the transport properties of a supramolecular spin valve, consisting of a carbon nanotube with two attached magnetic molecules, weakly coupled to metallic contacts. The emphasis is put on analyzing the change of the…

介观与纳米尺度物理 · 物理学 2019-03-19 A. Plominska , I. Weymann