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Related papers: Manganese-diffusion-induced n-doping in semiconduc…

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Theoretical work has suggested that monolayer MoS2 doped with Mn should behave as a two-dimensional dilute magnetic semiconductor, which would open up possibilities for spintronic applications, device physics, and novel ground states. The…

We predict that a novel bias-voltage assisted magnetization reversal process will occur in Mn doped II-VI semiconductor quantum wells or heterojunctions with carrier induced ferromagnetism. The effect is due to strong exchange-coupling…

Materials Science · Physics 2009-11-07 Byounghak Lee , T. Jungwirth , A. H. MacDonald

We report on the magneto-gyrotropic photogalvanic effect (MPGE) in n-doped (110)-grown GaAs/AlGaAs quantum-well (QW) structures caused by free-carrier absorption of terahertz radiation in the presence of a magnetic field. The photocurrent…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 P. Olbrich , J. Allerdings , V. V. Bel'kov , S. A. Tarasenko , D. Schuh , W. Wegscheider , T. Korn , C. Schüller , D. Weiss , S. D. Ganichev

The dilute magnetic semiconductors have promise in spin-based electronics applications due to their potential for ferromagnetic order at room temperature, and various unique switching and spin-dependent conductivity properties. However, the…

We investigated the dynamics of the interaction between spin-polarized photo-created carriers and Mn ions on InGaAs/GaAs:Mn structures. The carriers are confined in an InGaAs quantum well and the Mn ions come from a Mn delta-layer grown at…

Wide quantum dots were fabricated from multiple quantum well structures based on Zn_{1-x}Mn_xTe/ZnTe (x = 0.076) dilute magnetic semiconductors and were investigated via photoluminescence (PL) in a magnetic field. Calculations taking into…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Ivan J. Griffin , Peter J. Klar , Daniel Wolverson , J. John Davies , Bernard Lunn , Duncan E. Ashenford , Torsten Henning

We investigate the effect of quantum confinement on the ferromagnetism of diluted magnetic semiconductor Ga$_{1-x}$Mn$_x$As using a combination of tight-binding and density functional methods. We observe strong majority-spin Mn $d$-As $p$…

Materials Science · Physics 2015-06-24 Sameer Sapra , D. D. Sarma , S. Sanvito , N. A. Hill

Non-thermal laser induced spin excitations, recently discovered in conventional oxide and metal ferromagnets, open unprecedented opportunities for research and applications of ultrafast optical manipulation of magnetic systems.…

Materials Science · Physics 2011-01-06 P. Nemec , E. Rozkotova , N. Tesarova , F. Trojanek , K. Olejnik , J. Zemen , V. Novak , M. Cukr , P. Maly , T. Jungwirth

Doping of III-nitride based compound semiconductor nanowires is still a challenging issue to have a control over the dopant distribution in precise locations of the nanowire optoelectronic devices. Knowledge of the dopant incorporation and…

The degree and orientation of the magnetic-field induced linear polarization of the photoluminescence from a wide range of heterostructures containing (Cd,Mn)Te quantum wells between (Cd,Mn,Mg)Te barriers has been studied as a function of…

Electrical spin injection from ferromagnetic $\delta$-MnGa into an (Al,Ga)As p-i-n light emitting diode (LED) is demonstrated. The $\delta$-MnGa layers show strong perpendicular magnetocrystalline anisotropy, enabling detection of spin…

Materials Science · Physics 2017-01-17 C. Adelmann , X. Lou , H. -S. Chiang , J. L. Hilton , B. D. Schultz , S. McKernan , P. A. Crowell , C. J. Palmstrom

Hybrid structures incorpora1ng both III-nitride and Transi1on Metal Dichalcogenide (TMD) semiconductors have strong applica1on poten1al for light harves1ng and optoelectronics. Here we have inves1gated the proper1es of hybrid structures…

Materials Science · Physics 2025-09-09 D. Chen , D. Lagarde , L. Hemmen , L. Lombez , P. Renucci , M. Mauguet , L. Ren , C. Robert , N. Grandjean , X. Marie

The future of spintronic and semiconductor applications demands materials with tailored electronic and magnetic properties. This study uses density functional theory to investigate the electronic structure of the half-metallic compound…

Materials Science · Physics 2025-07-08 Sujoy Datta , Prashant Singh

Core-shell nanorods (NRs) with InGaN/GaN quantum wells (QWs) are promising for monolithic white light-emitting diodes and multicolor displays. Such applications, however, are still a challenge because intensity of red band is too weak as…

This paper assesses the effects of Ge-doping on the structural and optical (band-to-band and intersubband (ISB)) properties of GaN/AlGaN multi-quantum wells (QWs) designed to display ISB absorption in the short-wave, mid- and far-infrared…

Applied Physics · Physics 2019-03-25 Caroline B. Lim , Akhil Ajay , Jonas Lähnemann , Catherine Bougerol , Eva Monroy

We demonstrate that GaN formed in a Nanowall Network (NwN) morphology can overcome fundamental limitations in optoelectronic devices, and enable high light extraction and effective Mg incorporation for efficient p-GaN. We report the growth…

Materials Science · Physics 2016-12-01 Sanjay Kumar Nayak , Mukul Gupta , S. M. Shivaprasad

The discovery of ferromagnetism in Mn doped GaAs [1] has ignited interest in the development of semiconductor technologies based on electron spin and has led to several proof-of-concept spintronic devices [2-4]. A major hurdle for realistic…

Materials Science · Physics 2009-11-11 Dale Kitchen , Anthony Richardella , Jian-Ming Tang , Michael E. Flatte , Ali Yazdani

This letter reports on the growth, structure and luminescent properties of individual multiple quantum well (MQW) AlGaAs nanowires (NWs). The composition modulations (MQWs) are obtained by alternating the elemental flux of Al and Ga during…

Materials Science · Physics 2008-03-07 C. Chen , N. Braidy , C. Couteau , C. Fradin , G. Weihs , R. LaPierre

Using X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy techniques we investigate the incorporation of Manganese (Mn) in monolayer (1L)-MoS$_2$ grown on sapphire substrates by microcavity based…

Materials Science · Physics 2022-12-09 Poulab Chakrabarti , Santosh Kumar Yadav , Swarup Deb , Subhabrata Dhar

We have used neutron scattering and muon spin relaxation (muSR) to investigate the structural and magnetic properties of the beta-phase of elemental manganese doped with dilute amounts of indium. beta-Mn is an example of a topologically…

Strongly Correlated Electrons · Physics 2013-05-29 J R Stewart , A D Hillier , J M Hillier , R Cywinski