Interfacial structure and half-metallic ferromagnetism in Co2MnSi-based magnetic tunnel junctions
نویسندگان
چکیده
N. D. Telling,1 P. S. Keatley,2 G. van der Laan,1 R. J. Hicken,2 E. Arenholz,3 Y. Sakuraba,4 M. Oogane,4 Y. Ando,4 and T. Miyazaki4 1Magnetic Spectroscopy Group, CCLRC Daresbury Laboratory, Warrington WA4 4AD, United Kingdom 2School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom 3Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 4Department of Applied Physics, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-05, Sendai 980-8579, Japan Received 13 September 2006; published 28 December 2006
منابع مشابه
MnGa-based fully perpendicular magnetic tunnel junctions with ultrathin Co2MnSi interlayers
Because tetragonal structured MnGa alloy has intrinsic (not interface induced) giant perpendicular magnetic anisotropy (PMA), ultra-low damping constant and high spin polarization, it is predicted to be a kind of suitable magnetic electrode candidate in the perpendicular magnetic tunnel junction (p-MTJ) for high density spin transfer torque magnetic random access memory (STT-MRAM) applications....
متن کاملMagnetic Tunnel Junctions With Co:TiO Magnetic Semiconductor Electrodes
Spin-polarized tunneling is investigated in magnetic tunnel junctions containing an ultrathin interfacial layer of Co:TiO magnetic semiconductor. The Co:TiO layers (0 to 1 nm thick) are inserted at the SrTiO Co interface in La Sr MnO SrTiO Co tunnel junctions. For all junctions we find a negative tunnel magnetoresistance, which decreases upon the insertion of Co:TiO , while the junction resista...
متن کاملTransport and magnetic properties of fully-epitaxial superconducting NbN/half-metallic Heulser alloy Co2MnSi bilayer films
Fully-epitaxial NbN/Co2MnSi bilayer films were grown on MgO(001) single crystalline substrates by a sputter technique. Structural, electric transport and magnetic properties were investigated for the fabricated films. The resulting NbN/Co2MnSi bilayer films show superconducting critical temperature Tc was of 16.0 K and the saturation magnetization Ms at room temperature was of 790 emu/cm3. The ...
متن کاملProbing the electronic and spintronic properties of buried interfaces by extremely low energy photoemission spectroscopy
Ultraviolet photoemission spectroscopy (UPS) is a powerful tool to study the electronic spin and symmetry features at both surfaces and interfaces to ultrathin top layers. However, the very low mean free path of the photoelectrons usually prevents a direct access to the properties of buried interfaces. The latter are of particular interest since they crucially influence the performance of spint...
متن کاملPolarity-tunable magnetic tunnel junctions based on ferromagnetism at oxide heterointerfaces
Complex oxide systems have attracted considerable attention because of their fascinating properties, including the magnetic ordering at the conducting interface between two band insulators, such as LaAlO3 and SrTiO3. However, the manipulation of the spin degree of freedom at the LaAlO3/SrTiO3 heterointerface has remained elusive. Here, we have fabricated hybrid magnetic tunnel junctions consist...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006