Condensed-matter physics


Ontology type: npg:Subject  | skos:Concept     


Concept Info

NAME

Condensed-matter physics

DESCRIPTION

Condensed-matter physics is the study of substances in their solid state. This includes the investigation of both crystalline solids in which the atoms are positioned on a repeating three-dimensional lattice, such as diamond, and amorphous materials in which atomic position is more irregular, like in glass.

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Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/ontologies/subjects/condensed-matter-physics'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/ontologies/subjects/condensed-matter-physics'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/ontologies/subjects/condensed-matter-physics'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/ontologies/subjects/condensed-matter-physics'


 

This table displays all metadata directly associated to this object as RDF triples.

217 TRIPLES      10 PREDICATES      28 URIs      6 LITERALS

Subject Predicate Object
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10 skos:definition Condensed-matter physics is the study of substances in their solid state. This includes the investigation of both crystalline solids in which the atoms are positioned on a repeating three-dimensional lattice, such as diamond, and amorphous materials in which atomic position is more irregular, like in glass.
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46 skos:definition Bose–Einstein condensates are a state of matter in which all the constituent particles exist in their lowest energy level. The Pauli Exclusion Principle prevents more than one electron (an example of a fermion) per quantum state; however no such limit is imposed on particles known as bosons, such as helium-4 atoms.
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62 skos:definition Ferroelectrics and multiferroics are a class of materials that exhibit switching of their physical properties under an external influence. Ferroelectrics demonstrate a switchable electric polarization when an electric field is applied. Multiferroics exhibit a similar ‘ferroic’ behaviour in two or more of their (usually electric, magnetic or elastic) properties.
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70 skos:definition Ferromagnetism is a form of magnetic ordering in which the intrinsic magnetic dipole moment, or spin, of electrons on each crystal-lattice site all align in the same direction. It is the phenomenon that gives materials such as iron, cobalt and nickel their magnetic properties.
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106 skos:definition Molecular electronics is the use of molecules as the primary building block for electronic circuitry. A molecular approach, it is hoped, will enable the construction of much smaller circuits than is currently possible using the more conventional semiconductors such as silicon. The motion of the electrons in such devices is inherently governed by quantum mechanics.
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147 rdfs:label Quantum fluids and solids
148 skos:altLabel superfluid
149 skos:broader sg:ontologies/subjects/condensed-matter-physics
150 skos:definition Quantum fluids and solids are substances in which the interaction between the constituent atoms or molecules is governed by the laws of quantum mechanics. The properties of these materials are strongly influenced by the motion of atoms even in their lowest energy state, known as zero-point motion.
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156 rdfs:label Quantum Hall
157 skos:broader sg:ontologies/subjects/condensed-matter-physics
158 skos:definition Quantum Hall is the quantum-level version of the Hall effect: a voltage produced as electrons flow through a magnetic field. In two-dimensional materials and at low temperatures the quantum mechanical nature of this phenomenon is evident as a series of steps in the Hall voltage with increasing applied magnetic field.
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167 skos:definition Semiconductors are materials that have a small electronic bandgap. This bandgap prevents current from flowing at absolute zero, but thermally excited charge carriers can begin to flow at higher temperatures. Semiconductors, notably silicon, are at the heart of the modern microelectronics industry, and also have applications in light sources and detectors.
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179 skos:definition Spintronics is the use of a fundamental property of particles known as spin for information processing. In many ways, spintronics is analogous to electronics, which instead uses the electrical charge on an electron. Carrying information in both the charge and spin of an electron potentially offers devices with a greater diversity of functionality.
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187 skos:definition Structure of solids and liquids is the study of the physical properties of matter in which there is a non-negligible interaction between the constituent atoms or molecules. While the atoms or molecules in a liquid are free to move around, those in solids are limited to vibrating about a fixed point.
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210 skos:definition Topological insulators are materials that are insulating in their interior but can support the flow of electrons on their surface. The underlying cause is time-reversal symmetry: their physics is independent of whether time is flowing backward or forward. These surface states are robust, maintained even in the presence of surface defects.
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