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Ferrimagnetic semiconductors, integrated with net magnetization, antiferromagnetic coupling and semi-conductivity, have constructed an ideal platform for spintronics. For practical applications, achieving high N$\acute{e}$el temperatures…

Materials Science · Physics 2024-11-08 Haidi Wang , Qingqing Feng , Shuo Li , Wei Lin , Weiduo Zhu , Zhao Chen , Zhongjun Li , Xiaofeng Liu , Xingxing Li

Electrical control of spin polarization is very desirable in spintronics, since electric field can be easily applied locally in contrast with magnetic field. Here, we propose a new concept of bipolar magnetic semiconductor (BMS) in which…

Materials Science · Physics 2012-08-08 Xingxing Li , Xiaojun Wu , Zhenyu Li , Jinlong Yang , J. G. Hou

We report the theoretical prediction of a new class of spintronic materials, namely bipolar magnetic semiconductor (BMS), which is also supported by our experimental data. BMS acquires a unique band structure with unequal band gaps for spin…

Applied Physics · Physics 2020-11-21 Jadupati Nag , Deepika Rani , Jiban Kangsabanik , P. D. Babu , K. G. Suresh , Aftab Alam

The development of room-temperature tunable magnetic semiconductors is crucial for the advancement of low-power, high-performance information technologies. Using density functional theory calculations, we propose a series of two-dimensional…

Materials Science · Physics 2025-06-12 Jia-Wen Li , Gang Su , Bo Gu

Magnetic topological insulators and semi-metals have a variety of properties that make them attractive for applications including spintronics and quantum computation, but very few high-quality candidate materials are known. In this work, we…

Materials Science · Physics 2021-04-21 Kamal Choudhary , Kevin F. Garrity , Nirmal J. Ghimire , Naween Anand , Francesca Tavazza

The recent development of MBE techniques for growth of III-V ferromagnetic semiconductors has created materials with exceptional promise in spintronics, i.e. electronics that exploit carrier spin polarization. Among the most carefully…

Materials Science · Physics 2015-06-25 A. H. MacDonald , P. Schiffer , N. Samarth

We perform a computational screening for two-dimensional magnetic materials based on experimental bulk compounds present in the Inorganic Crystal Structure Database and Crystallography Open Database. A recently proposed geometric descriptor…

Materials Science · Physics 2020-12-04 Daniele Torelli , Hadeel Moustafa , Karsten W. Jacobsen , Thomas Olsen

Recently, a new kind of spintronics materials, bipolar magnetic semiconductor (BMS), has been proposed. The spin polarization of BMS can be conveniently controlled by a gate voltage, which makes it very attractive in device engineering.…

Materials Science · Physics 2012-11-26 Long Yuan , Zhenyu Li , Jinlong Yang

Topological insulators (TIs) are a new class of quantum materials that exhibit spin momentum locking (SML) of massless Dirac fermions in the surface states. Usually optical methods, such as angle and spin-resolved photoemission…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 André Dankert , Johannes Geurs , M. Venkata Kamalakar , Saroj P. Dash

Two-dimensional topological materials (TMs) have a variety of properties that make them attractive for applications including spintronics and quantum computation. However, there are only a few such experimentally known materials. To help…

Materials Science · Physics 2020-05-08 Kamal Choudhary , Kevin F. Garrity , Jie Jiang , Ruth Pachter , Francesca Tavazza

Recently, two-dimensional materials and nanoparticles with robust ferromagnetism are even of great interest to explore basic physics in nanoscale spintronics. More importantly, room-temperature magnetic semiconducting materials with high…

Materials Science · Physics 2018-03-23 Xi Chen , Zheng-Zhe Lin

Alternating layers of granular Iron (Fe) and Titanium dioxide (TiO$_{2-\delta}$) were deposited on (100) Lanthanum aluminate (LaAlO$_3$) substrates in low oxygen chamber pressure using a controlled pulsed laser ablation deposition…

Materials Science · Physics 2007-05-23 Soack Dae Yoon , Carmine Vittoria , Vincent G. Harris , Allan Widom

Intrinsic polar metals are rare, especially in oxides, because free electrons screen electric fields in a metal and eliminate the internal dipoles that are needed to break inversion symmetry. Here we use first-principles high-throughput…

Materials Science · Physics 2020-02-06 Yue-Wen Fang , Hanghui Chen

Two-dimensional (2D) intrinsic half-metallic materials are of great interest to explore the exciting physics and applications of nanoscale spintronic devices, but no such materials have been experimentally realized. Using first-principles…

Materials Science · Physics 2021-10-01 Tengfei Hu , Wenhui Wan , Yanfeng Ge , Yong Liu

After decades of research, the low Curie temperature of ferromagnetic semiconductors remains the key problem in the development of magnetic semiconductor spintronic technologies. Removing this roadblock might require a change of the field's…

In semiconductor spintronics, the generation of highly spin-polarized carriers and the efficient probe of spin order (due to strong ferromagnetism) -- at or above room temperature -- are crucial because it allows for the design of…

Materials Science · Physics 2023-06-09 Hong Jian Zhao , Longju Yu , Yanchao Wang , Laurent Bellaiche , Yanming Ma

We present two magnetometry-based methods suitable for assessing gradients in the critical temperature and hence the composition of multifilamentary superconductors: AC magnetometry and Scanning Hall Probe Microscopy. The novelty of the…

Superconductivity · Physics 2016-11-22 T. Baumgartner , J. Hecher , J. Bernardi , S. Pfeiffer , C. Senatore , M. Eisterer

We employ ab-initio electronic structure calculations to search for spin gapless semiconductors, a recently identified new class of materials, among the inverse Heusler compounds. The occurrence of this property is not accompanied by a…

Materials Science · Physics 2015-06-11 S. Skaftouros , K. Ozdogan , E. Sasioglu , I. Galanakis

A high-throughput screening using density functional calculations is performed to search for stable boride superconductors from the existing materials database. The workflow employs the fast frozen phonon method as the descriptor to…

Materials Science · Physics 2024-04-30 Shiya Chen , Zepeng Wu , Zhen Zhang , Shunqing Wu , Kai-Ming Ho , Vladimir Antropov , Yang Sun

We conducted a high-throughput search for topological magnetic materials on 522 new, experimentally reported commensurate magnetic structures from MAGNDATA, doubling the number of available materials on the Topological Magnetic Materials…

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