Local injection of pure spin current generates electric current vortices
نویسندگان
چکیده
منابع مشابه
Power dependence of pure spin current injection by quantum interference
We investigate the power dependence of pure spin current injection in GaAs bulk and quantum-well samples by a quantum interference and control technique. Spin separation is measured as a function of the relative strength of the two transition pathways driven by two laser pulses. By keeping the relaxation time of the current unchanged, we are able to relate the spin separation to the injected av...
متن کاملTowards coherent spin precession in pure-spin current
Non-local spin injection in lateral spin valves generates a pure spin current which is a diffusive flow of spins (i.e. spin angular momentums) with no net charge flow. The diffusive spins lose phase coherency in precession while undergoing frequent collisions and these events lead to a broad distribution of the dwell time in a transport channel between the injector and the detector. Here we sho...
متن کاملSpin-current nano-oscillator based on nonlocal spin injection
Nonlocal spin injection has been recognized as an efficient mechanism for creation of pure spin currents not tied to the electrical charge transfer. Here we demonstrate experimentally that it can induce coherent magnetization dynamics, which can be utilized for the implementation of novel microwave nano-sources for spintronic and magnonic applications. We show that such sources exhibit a small ...
متن کاملLocal Current Operators for Arbitrary Spin
Free current operators are constructed for massive particles with arbitrary spin j. Such current operators are related to representations of the U(N,N) type groups and are covariant under the (extended) Poincaré group and charge conjugation, where the charge conjugation operation is defined as an automorphism on U(N,N) elements. The currents are also required to satisfy current conservation, he...
متن کاملObservation and electric current control of a local spin in a single-molecule magnet
In molecular spintronics, the spin state of a molecule may be switched on and off by changing the molecular structure. Here, we switch on and off the molecular spin of a double-decker bis(phthalocyaninato)terbium(III) complex (TbPc₂) adsorbed on an Au(111) surface by applying an electric current via a scanning tunnelling microscope. The dI/dV curve of the tunnelling current recorded onto a TbPc...
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: Applied Physics Letters
سال: 2017
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4977027