Emission of electromagnetic radiation due to spin-flip transitions in a ferromagnet

Karashtin, E. A.

doi:10.1016/j.jmmm.2022.169193

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…Therefore, operator (10), which is actually proportional to the momentum operator and does not contain a spin operator, cannot cause electron transitions between states. At the same time, the correction to the momentum in the Rashba Hamiltonian gives the interaction operator [8]:…”

Section: Interaction Of Ferromagnet With Electromagnetic Wavementioning

confidence: 99%

“…In non-collinear ferromagnets, such phenomena as non-reciprocal light scattering [1.2] and signal generation at double frequency [3], electromagnetic wave absorption and radiation due to conductivity electrons transitions between spin subbands occur [4][5][6][7][8]. In non-coplanar magnetic systems there is a topological Hall effect [9][10][11], a rectification effect for neutrons [12][13][14] and electrons [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Photovoltaic effect in a ferromagnet with spin-orbit coupling

E.A.

2022

Physics of the Solid State

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The effect of the appearance of an electric current induced by the electromagnetic radiation at the interface of a ferromagnet and a non-magnetic material is calculated theoretically, taking into account the Rashba spin-orbit coupling. It is shown that the electric dipole transitions between the spin subbands of the conduction electrons of a ferromagnet due to the Rashba interaction lead to a photocurrent. This current has a resonance at a frequency corresponding to the energy of the exchange splitting of spin subbands. The resonance width is determined by the spin-orbit interaction constant. The estimates show the possibility of experimental observation of this effect in specially prepared multilayer systems. Keywords: Ferromagnet, exchange coupling, Rashba spin-orbit coupling, photovoltaic effect.

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Section: Interaction Of Ferromagnet With Electromagnetic Wavementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photovoltaic effect in a ferromagnet with spin-orbit coupling

E.A.

2022

Physics of the Solid State

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“…Связь спиновых и орбитальных степеней свободы в ферромагнетиках приводит к ряду необычных и интересных явлений в оптике и транспорте. В неколлинеарных ферромагнетиках возникают такие явления, как невзаимное рассеяние света [1,2] и генерация сигнала на удвоенной частоте [3], поглощение и излучение электромагнитных волн за счет переходов электронов проводимости между спиновыми подзонами [4][5][6][7][8]. В некомпланарных магнитных системах наблюдается топологический эффект Холла [9][10][11], эффект выпрямления для нейтронов [12][13][14] и электронов [15][16][17].…”

Section: Introductionunclassified

Фотогальванический Эффект В Ферромагнетике Со Спин-Орбитальным Взаимодействием

Караштин¹

2022

Физика Твердого Тела

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The effect of the appearance of an electric current induced by the electromagnetic radiation at the interface of a ferromagnet and a non-magnetic material is calculated theoretically, taking into account the Rashba spin-orbit coupling. It is shown that the electric dipole transitions between the spin subbands of the conduction electrons of a ferromagnet due to the Rashba interaction lead to a photocurrent. This current has a resonance at a frequency corresponding to the energy of the exchange splitting of spin subbands. The resonance width is determined by the spin-orbit interaction constant. The estimates made show the possibility of experimental observation of this effect in specially prepared multilayer systems.

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