نتایج جستجو برای: creating spin

تعداد نتایج: 216500  

Journal: :iranian journal of science and technology (sciences) 2012
m. m. golshan

in the present work we use the negativity to study the effect of rashba parameter on the thermal entanglement ofelectronic spin and subband states inside a quasi-one-dimensional rashba nanowire, in a perpendicular uniformmagnetic field. we assume that the nanowire is held at a temperature t, so that both spin and subband states, withdefinite probabilities, are present. the partially transposed ...

Journal: :Physical review 2022

We study a bilayer structure consisting of an antiferromagnetic insulator and normal metal. An electron current is driven in the metal with direction parallel to interface between materials. Due interfacial exchange coupling localized spins antiferromagnet itinerant electrons metal, magnon can then be induced antiferromagnet. Using uncompensated interface, creating asymmetry two degenerate mode...

Journal: :iranian journal of radiation research 0
n.n.a razak school of physics, university sains malaysia, 18000, pulau pinang, malaysia a.a. rahman 1school of physics, university sains malaysia, 18000, pulau pinang, malaysia s. kandaiya 1school of physics, university sains malaysia, 18000, pulau pinang, malaysia i.s. mustafa 1school of physics, university sains malaysia, 18000, pulau pinang, malaysia a.a. mahmoud 1school of physics, university sains malaysia, 18000, pulau pinang, malaysia n.z. yahaya school of distance education, university sains malaysia, 18000, pulau pinang, malaysia

background: an effective polymer gel dosimeter can be fabricated by varying the composition of its chemical components. materials and methods: the magat gel dosimeter formulations that used different compositions of methacrylic acid (maa) and gelatin were extensively investigated in the present study according to the r2–dose response and r2–dose sensitivity. the irradiation of magat gel was per...

Journal: :Fizika tverdogo tela 2022

The possibility of creating defects with spin-dependent fluorescence in a Van der Waals material, hexagonal boron nitride (hBN), by irradiating the latter high-energy protons (E P =15 MeV) has been studied. Using micro-photoluminescence and electron paramagnetic resonance methods it was shown that such irradiation leads to creation vacancies negative charge state (V - B -centers). ground spin t...

2000
S. Das Sarma Jaroslav Fabian Xuedong Hu Igor Žutić

We review from a theoretical perspective the emerging field of spintronics where active control of spin transport and dynamics in electronic materials may provide novel device application possibilities. In particular, we discuss the quantum mechanical principles underlying spintronics applications, emphasizing the formidable challenges involving spin decoherence and spin injection facing any ev...

2014
Takashi Imai Thomas Greytak Kent R. Thurber

63 Cu and 170 nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) experiments are reported on copper-oxide compounds related to high temperature superconductors that are nearly ideal realizations of spin 1/2 Heisenberg antiferromagnets with different geometries of the magnetic interactions: 1 dimensional spin chains, 2 dimensional planes, two coupled chains (two-leg ladder),...

2016
Prakash Chandra Mondal Claudio Fontanesi David H. Waldeck Ron Naaman

Molecular spintronics (spin + electronics), which aims to exploit both the spin degree of freedom and the electron charge in molecular devices, has recently received massive attention. Our recent experiments on molecular spintronics employ chiral molecules which have the unexpected property of acting as spin filters, by way of an effect we call "chiral-induced spin selectivity" (CISS). In this ...

Journal: :Physical review 2022

Spin splitting induced in a conventional superconductor weakens superconductivity by destroying spin-singlet and creating spin-triplet Cooper pairs. We demonstrate theoretically that such an effect is also caused adjacent compensated antiferromagnet, which yields no net spin splitting. find the antiferromagnet produces N\'eel triplet pairs, whose pairing amplitude oscillates rapidly space simil...

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