Spin and Charge Transport in a Magnetic Tunnel Junction with Magnetic Impurities Embedded in the Tunnel Barrier
نویسندگان
چکیده
منابع مشابه
Spin and Charge Transport in a Magnetic Tunnel Junction with Magnetic Impurities Embedded in the Tunnel Barrier
Electronic transport in a nanoscopic magnetic tunnel junction with magnetic particles or magnetic impurity atoms/molecules embedded in the barrier is studied theoretically. The impurity Hamiltonian includes magnetic anisotropy of easy axis type with additional perpendicular term. The description takes into account both elastic tunneling processes as well as inelastic processes associated with a...
متن کاملAnomalous Tunnel Magnetoresistance and Spin Transfer Torque in Magnetic Tunnel Junctions with Embedded Nanoparticles
The tunnel magnetoresistance (TMR) in the magnetic tunnel junction (MTJ) with embedded nanoparticles (NPs) was calculated in range of the quantum-ballistic model. The simulation was performed for electron tunneling through the insulating layer with embedded magnetic and non-magnetic NPs within the approach of the double barrier subsystem connected in parallel to the single barrier one. This mod...
متن کاملResonant tunneling via spin-polarized barrier states in a magnetic tunnel junction
Resonant tunneling through states in the barrier of a magnetic tunnel junction has been analyzed theoretically for the case of a spin-polarized density of barrier states. It is shown that for highly spin-polarized barrier states, the magnetoresistance due to resonant tunneling is enhanced compared to the magnetoresistance due to direct tunneling between the ferromagnetic electrodes. Moreover, i...
متن کاملMagnetic tunnel junction sensors with pTesla sensitivity
Biomedical imaging techniques such as magneto-cardiography demand highly sensitive magnetic sensors capable to detect fields down to sub-picoTesla range at low frequencies (<10 hz). Currently, systems composed of superconducting quantum interference devices or hybrid supercond ucting/magnetoresistive (Mr) sensors fulfill such requirements, with the inconvenient of working at temperatures a few ...
متن کاملCompact thermal modeling of spin transfer torque magnetic tunnel junction
Article history: Received 25 May 2015 Received in revised form 20 June 2015 Accepted 20 June 2015 Available online xxxx
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2015
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.128.196