Gapless Semiconductors - a New Class of Materials PDF Download
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Author: Isaak M. Cidilʹkovskij
Publisher:
ISBN:
Category :
Languages : de
Pages : 0
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Book Description
Author: Isaak M. Cidilʹkovskij
Publisher:
ISBN:
Category :
Languages : de
Pages : 0
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Book Description
Author: I. M. Tsidilkovski
Publisher: de Gruyter
ISBN: 9783112643136
Category :
Languages : de
Pages : 0
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Book Description
Author: Isaak Mikhaĭlovich T︠S︡idilʹkovskiĭ
Publisher: Wiley-VCH
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 144
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Book Description
Author: Isaak Mikhaĭlovich T︠S︡idilʹkovskiĭ
Publisher: Wiley-VCH
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 144
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Book Description
Author: J. Tsidilkovski
Publisher: Springer Science & Business Media
ISBN: 364260403X
Category : Technology & Engineering
Languages : en
Pages : 259
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Book Description
A presentation of the peculiarities of the physical properties of a comparatively new class of solids. GSs are of practical interest since they are very sensitive to impurities, and to the influence of light, magnetic and electric fields, and to pressure.
Author: Xiaotian Wang
Publisher: MDPI
ISBN: 3038979767
Category : Science
Languages : en
Pages : 152
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Book Description
As we all know, electrons carry both charge and spin. The processing of information in conventional electronic devices is based only on the charge of electrons. Spin electronics, or spintronics, uses the spin of electrons, as well as their charge, to process information. Metals, semiconductors, and insulators are the basic materials that constitute the components of electronic devices, and these types of materials have been transforming all aspects of society for over a century. In contrast, magnetic metals, half-metals (including zero-gap half-metals), magnetic semiconductors (including spin-gapless semiconductors), dilute magnetic semiconductors, and magnetic insulators are the materials that will form the basis for spintronic devices. This book aims to collect a range of papers on novel materials that have intriguing physical properties and numerous potential practical applications in spintronics.
Author:
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Category :
Languages : en
Pages :
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Despite a plethora of materials suggested for spintronic applications, a new class of materials has emerged, namely spin gapless semiconductors (SGS), which offers potentially more advantageous properties than existing ones. These magnetic semiconductors exhibit a finite band gap for one spin channel and a closed gap for the other. Supported by electronic-structure calculations, we report evidence of SGS behavior in equiatomic quaternary CoFeCrGa, having a cubic Heusler (prototype LiMgPdSn) structure but exhibiting chemical disorder (DO3 structure). CoFeCrGa is found to transform from SGS to half-metallic phase under pressure, which is attributed to unique electronic-structure features. The saturation magnetization (MS) was obtained at 8K agrees with the Slater-Pauling rule and the Curie temperature (TC) is found to exceed 400K. Carrier concentration (up to 250K) and electrical conductivity are observed to be nearly temperature independent, prerequisites for SGS. The anomalous Hall coefficient is estimated to be 185S/cm at 5K. Considering the SGS properties and high TC, this material appears to be promising for spintronic applications.
Author: Isaak Mikhaĭlovich T︠S︡idilʹkovskiĭ
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 270
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Book Description
A presentation of the peculiarities of the physical properties of a comparatively new class of solids. GSs are of practical interest since they are very sensitive to impurities, and to the influence of light, magnetic and electric fields, and to pressure.
Author: Xiaotian Wang
Publisher: Frontiers Media SA
ISBN: 2889664864
Category : Science
Languages : en
Pages : 151
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Book Description
Author: San-Dong Guo
Publisher: Frontiers Media SA
ISBN: 2832531636
Category : Science
Languages : en
Pages : 114
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Book Description
The fascinating two-dimensional (2D) materials are being unconsciously applied in various fields from science to engineering, which is benefited from the glamorous physical and chemical properties of mechanics, optics, electronics, and magnetism. The representative 2D thermoelectric/piezoelectric materials can directly convert thermal/mechanical energy into electrical energy, which can resolve the energy issues and avoid further environmental deterioration. The thermoelectric or piezoelectric properties of various 2D materials, such as graphene, hexagonal boron nitride, black phosphorus, transition metal dichalcogenides (TMDs), arsenene, metal carbides and nitrides (MXenes), and so on, have been investigated in detail. Although tremendous progress has been achieved in the past few years, these properties still need to be improved for their practical application by designing new 2D materials, strain engineering, chemical functionalization, etc. In addition to this, in 2D materials, there are many other novel physical properties, such as magnetism, topology, valley, and so on. The combination of thermoelectricity/piezoelectricity with other unique properties may lead to novel device applications or scientific breakthroughs in new physics. Overall, the emergence of 2D thermoelectric and piezoelectric materials has expanded energy conversion research dramatically. By combing this new device concept with the novel 2D materials, original devices should have potential applications in energy harvesting.
