Ferromagnetic-Insulator-Based Superconducting Junctions as Sensitive Electron Thermometers

نویسندگان

  • F. Giazotto
  • P. Solinas
  • A. Braggio
  • F. S. Bergeret
چکیده

F. Giazotto, P. Solinas, A. Braggio, and F. S. Bergeret NEST Istituto Nanoscienze-CNR and Scuola Normale Superiore, I-56127 Pisa, Italy SPIN-CNR, Via Dodecaneso 33, 16146 Genova, Italy I.N.F.N. Sezione di Genova Via Dodecaneso 33, 16146, Genova, Italy Centro de Física de Materiales (CFM-MPC), Centro Mixto CSIC-UPV/EHU, Manuel de Lardizabal 4, E-20018 San Sebastián, Spain Donostia International Physics Center (DIPC), Manuel de Lardizabal 5, E-20018 San Sebastián, Spain (Received 4 June 2015; revised manuscript received 14 July 2015; published 26 October 2015)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

مشخصات پیوندگاه‌های ابررسانا - فرومغناطیس - ابررسانا با پایانه‌های ابررسانای یکتایی

We study numerically the electronic heat capacity, spin and charge current in a diffusive Superconductor-Ferromagnetic-Superconductor systems، with singlet superconducting leads and non-uniform ferromagnetic layer. Specially, we focus on ferromagnetic layer with domain wall and conical structures incorporation the spin-active interfaces. We investigate, how the 0-π transition is influenced by n...

متن کامل

Detection of small exchange fields in S/F structures

Ferromagnetic materials with exchange fields Eex smaller or of the order of the superconducting gap ∆ are important for applications of corresponding (s-wave) superconductor/ ferromagnet/ superconductor (SFS) junctions. Presently such materials are not known but there are several proposals how to create them. Small exchange fields are in principle difficult to detect. Based on our results we pr...

متن کامل

Observation of spin-triplet superconductivity in Co-based Josephson junctions.

We have measured a long-range supercurrent in Josephson junctions containing Co (a strong ferromagnetic material) when we insert thin layers of either PdNi or CuNi weakly ferromagnetic alloys between the Co and the two superconducting Nb electrodes. The critical current in such junctions hardly decays for Co thicknesses in the range of 12-28 nm, whereas it decays very steeply in similar junctio...

متن کامل

Electron transport in a mesoscopic superconducting / ferromagnetic hybrid conductor

We present electrical transport experiments performed on submicron hybrid devices made of a ferromagnetic conductor (Co) and a superconducting (Al) electrode. The sample was patterned in order to separate the contributions of the Co conductor and of the Co-Al interface. We observed a strong influence of the Al electrode superconductivity on the resistance of the Co conductor. This effect is lar...

متن کامل

Large interfacial exchange fields in a thick superconducting film coupled to a spin filter tunnel barrier

The differential conductance of NbN/GdN/TiN superconductor / ferromagnetic insulator / normal metal junctions, with a thick NbN layer shows a large zero-field voltage offset interpreted as a spin-filtered Zeeman splitting of the NbN density of states (DOS) by an effective exchange field (H0) from the GdN. The splitting increases linearly with applied field (Hext) enabling the relative sign of H...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015