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Related papers: Is manganese-doped diamond a ferromagnetic semicon…

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Fe-doped III-V ferromagnetic semiconductors (FMSs) such as (In,Fe)As, (Ga,Fe)Sb, (In,Fe)Sb, and (Al,Fe)Sb are promising materials for spintronic device applications because of the availability of both n- and p-type materials and the high…

The spin orientation of a magnetic dopant in a zincblende semiconductor strongly influences the spatial structure of an acceptor state bound to the dopant. The acceptor state has a roughly oblate shape with the short axis aligned with the…

Materials Science · Physics 2007-05-23 Jian-Ming Tang , Michael E. Flatté

CdGeP2 chalcopyrites doped with Mn have been recently found to exhibit room temperature ferromagnetism. Isovalent substitution of the Cd site is expected, however, to create antiferromagnetism, in analogy with the well-known CdTe:Mn (d^5)…

Strongly Correlated Electrons · Physics 2009-11-07 Priya Mahadevan , Alex Zunger

Ferromagnetism in Mn-doped GaAs, the prototypical dilute magnetic semiconductor, has so far been attributed to hole mediated RKKY-type interactions. First-principles calculations reveal a strong direction dependence of the ferromagnetic…

Other Condensed Matter · Physics 2009-11-10 Priya Mahadevan , Alex Zunger , D. D. Sarma , ;

Diamond is a promising material for high-power electronic applications in both the dc and rf domains. However, the predicted advantages are yet to be realized for a number of technical challenges. In particular, n-type devices have not been…

Applied Physics · Physics 2019-01-31 Namita Narendra , Jagdish Narayan , Ki Wook Kim

We investigate the interaction of two Mn ions in the dilute magnetic semiconductor GaMnAs using the variational envelope wave function approach within the framework of six band model of the valence band. We find that the effective…

Materials Science · Physics 2007-05-23 P. Redlinski , G. Zarand , B. Janko

We study the possibility of d0 ferromagnetism in the compound MgO doped with nitrogen (N). The Haldane-Anderson impurity model is formulated within the tight-binding approximation for determining the host band-structure and the…

Materials Science · Physics 2009-11-13 Bo Gu , Nejat Bulut , Timothy Ziman , Sadamichi Maekawa

We report a surfactant assisted synthesis of Mn doped ZnO polycrystalline samples showing robust room temperature ferromagnetism as characterized by X-ray diffraction analysis, Transmission Electron Microscopy, Electron Paramagnetic…

Materials Science · Physics 2011-11-09 O. D. Jayakumar , I. K. Gopalakrishnan , C. Sudakar , R. M. Kadam , S. K. Kulshreshtha

We report the discovery of superconductivity in boron-doped diamond synthesized at high pressure (8-9 GPa) and temperature (2,500-2,800 K). Electrical resistivity, magnetic susceptibility, specific heat, and field-dependent resistance…

Superconductivity · Physics 2009-11-10 E. A. Ekimov , V. A. Sidorov , E. D. Bauer , N. N. Mel'nik , N. J. Curro , J. D. Thompson , S. M. Stishov

The diversity of various manganese types and its complexes in the Mn-doped ${\rm A^{III}B^V}$ semiconductor structures leads to a number of intriguing phenomena. Here we show that the interplay between the ordinary substitutional Mn…

Mesoscale and Nanoscale Physics · Physics 2020-07-09 I. A. Kokurin , A. Yu. Silov , N. S. Averkiev

The prediction of ultra-low magnetic damping in Co 2 MnZ Heusler half-metal thin-film magnets is explored in this study and the damping response is shown to be linked to the underlying electronic properties. By substituting the Z elements…

The silicon-vacancy center in diamond offers attractive opportunities in quantum photonics due to its favorable optical properties and optically addressable electronic spin. Here, we combine both to achieve all-optical coherent control of…

We review the first decade of extensive optical studies of ferromagnetic, III-Mn-V diluted magnetic semiconductors. Mn introduces holes and local moments to the III-V host, which can result in carrier mediated ferromagnetism in these…

Materials Science · Physics 2008-10-22 K. S. Burch , D. D. Awschalom , D. N. Basov

First principles total-energy pseudopotential calculations have been performed to investigate STM images of the (110) cross-sectional surface of Mn-doped GaAs. We have considered configurations with Mn in interstitial positions in the…

Materials Science · Physics 2007-05-23 A. Stroppa

The density of states and the band diagrams were computed for diamond, cubic boron nitrde (cBN), and hexagonal boron nitride (hBN) using a Korringa-Kohn-Rostoker (KKR) scheme to investigate the shift of the Fermi level by impurity-atom…

Materials Science · Physics 2014-12-11 Koji Kobashi

Quantum sensing based on nitrogen-vacancy (NV) centers in diamond has been developed as a powerful tool for microscopic magnetic resonance. However, the reported sensor-to-sample distance is limited within tens of nanometers because the…

We examine the intrinsic mechanism of ferromagnetism in dilute magnetic semiconductors by analyzing the trends in the electronic structure as the host is changed from GaN to GaP, GaAs and GaSb, keeping the transition metal impurity fixed.…

Other Condensed Matter · Physics 2009-11-10 Priya Mahadevan , Alex Zunger

We successfully dope the magnetically silent double perovskite semiconductor Sr2GaSbO6 to induce ferromagnetism and tune its band gap, with Ga3+ partially substituted by the magnetic trivalent cation Mn3+, in a rigid cation ordering with…

Materials Science · Physics 2022-01-24 Lun Jin , Danrui Ni , Xin Gui , Daniel B. Straus , Qiang Zhang , Robert J. Cava

Using a state-of-the-art full-potential electronic structure method within the local spin density approximation, we study the electronic and magnetic structure of Mn$_2$V-based full Heusler alloys: Mn$_2$VZ (Z=Al, Ga, In, Si, Ge, and Sn).…

Materials Science · Physics 2007-05-23 K Ozdogan , I Galanakis , E Sasioglu , B Aktas

We study theoretically and experimentally the frequency and temperature dependence of resistivity noise in semiconductor heterostructures delta-doped by Mn. The resistivity noise is observed to be non-monotonous as a function of frequency.…

Mesoscale and Nanoscale Physics · Physics 2012-06-08 V. Tripathi , Kusum Dhochak , B. A. Aronzon , Bertrand Raquet , V. V. Tugushev , K. I. Kugel