Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Heating of the Mn spin system by photoexcited holes in type‐II (Zn,Mn)Se/(Be,Mn)Te quantum wells
View through CrossRef
The efficiency of the Mn‐spin system heating under pulsed laser excitation is studied in diluted magnetic semiconductor heterostructures Zn0.99 Mn0.01 Se/Be0.93 Mn0.07 Te with type‐II band alignment by means of time‐resolved photoluminescence and pump‐probe reflectivity. An essential role in the heating is played by multiple spin‐flip scatterings of a hole with localized spins of Mn2+ ions. The efficiency of the spin and energy transfer from photoexcited holes to Mn ions of the Zn0.99 Mn0.01 Se layer considerably depends on the hole lifetime in this layer. This lifetime can be limited by the hole relaxation into the Be0.93 Mn0.07 Te layers and is strongly sensitive to the excitation power and Zn0.99 Mn0.01 Se layer thickness. These dependences allow us to determine a characteristic time of about 20ps for the spin and energy transfer from photoexcited holes to the Mn spin system.
Title: Heating of the Mn spin system by photoexcited holes in type‐II (Zn,Mn)Se/(Be,Mn)Te quantum wells
Description:
The efficiency of the Mn‐spin system heating under pulsed laser excitation is studied in diluted magnetic semiconductor heterostructures Zn0.
99 Mn0.
01 Se/Be0.
93 Mn0.
07 Te with type‐II band alignment by means of time‐resolved photoluminescence and pump‐probe reflectivity.
An essential role in the heating is played by multiple spin‐flip scatterings of a hole with localized spins of Mn2+ ions.
The efficiency of the spin and energy transfer from photoexcited holes to Mn ions of the Zn0.
99 Mn0.
01 Se layer considerably depends on the hole lifetime in this layer.
This lifetime can be limited by the hole relaxation into the Be0.
93 Mn0.
07 Te layers and is strongly sensitive to the excitation power and Zn0.
99 Mn0.
01 Se layer thickness.
These dependences allow us to determine a characteristic time of about 20ps for the spin and energy transfer from photoexcited holes to the Mn spin system.
Related Results
Dynamics of spinor fermions
Dynamics of spinor fermions
Ultracold atomic gases have established themselves as quantum systems, which are clean and offer a high degree of control over crucial parameters. They are well isolated from their...
Advanced frameworks for fraud detection leveraging quantum machine learning and data science in fintech ecosystems
Advanced frameworks for fraud detection leveraging quantum machine learning and data science in fintech ecosystems
The rapid expansion of the fintech sector has brought with it an increasing demand for robust and sophisticated fraud detection systems capable of managing large volumes of financi...
Spin to charge current interconversion in Rasha interfaces and topological insulators
Spin to charge current interconversion in Rasha interfaces and topological insulators
Conversion entre courant de spin et courant de charge dans des interfaces Rashba et des isolants topologiques
L'interconversion entre courants de spin et de charge ...
Advancements in Quantum Computing and Information Science
Advancements in Quantum Computing and Information Science
Abstract: The chapter "Advancements in Quantum Computing and Information Science" explores the fundamental principles, historical development, and modern applications of quantum co...
Quantum Computing and Quantum Information Science
Quantum Computing and Quantum Information Science
Abstract:
Quantum Computing and Quantum Information Science offers a comprehensive, interdisciplinary exploration of the mathematical principles, computational models, and engineer...
Integrating quantum neural networks with machine learning algorithms for optimizing healthcare diagnostics and treatment outcomes
Integrating quantum neural networks with machine learning algorithms for optimizing healthcare diagnostics and treatment outcomes
The rapid advancements in artificial intelligence (AI) and quantum computing have catalyzed an unprecedented shift in the methodologies utilized for healthcare diagnostics and trea...
Survey Of Horizontal Gas Well Activity
Survey Of Horizontal Gas Well Activity
Abstract
This paper presents the results of a survey on horizontal gas well activity throughout the world. The survey was conducted for the Gas Research Institute...
Quantum information outside quantum information
Quantum information outside quantum information
Quantum theory, as counter-intuitive as a theory can get, has turned out to make predictions of the physical world that match observations so precisely that it has been described a...