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Search results for inversion symmetry

Analytical Chemistry Jan 10, 2022

Equivariant representations for molecular Hamiltonians and N-center atomic-scale properties

In the fields of chemistry and materials, most successful, widely used machine learning schemes introduced over the last decade aim to model molecular energies or interatomic potentials. Accordingly, the representations used ...

Condensed Matter Nov 17, 2021

Study challenges standard ideas about piezoelectricity in ferroelectric crystals

For years, researchers believed that the smaller the domain size in a ferroelectric crystal, the greater the piezoelectric properties of the material. However, recent findings by Penn State researchers have raised questions ...

Condensed Matter Nov 4, 2021

Revising a generalized spin current theory for the magnetoelectric effect in multiferroics

Microscopic aspects of ferroelectricity are canonically related to polar atomic displacements that break inversion symmetry of the crystal, leading to a non-zero net electric dipole moment. However, there is a special class ...

Condensed Matter Aug 19, 2021

Scientists discover crystal exhibiting exotic spiral magnetism

An exotic form of magnetism has been discovered and linked to an equally exotic type of electrons, according to scientists who analyzed a new crystal in which they appear at the National Institute of Standards and Technology ...

General Âé¶¹ÒùÔºics Aug 11, 2021

Âé¶¹ÒùÔºics researchers discover new electronic phenomenon

Âé¶¹ÒùÔºics researchers at the University of North Florida's Atomic LEGO Lab discovered a new electronic phenomenon they call "asymmetric ferroelectricity." The research led by Dr. Maitri Warusawithana, UNF physics assistant ...

Nanophysics Jun 30, 2021

The world's thinnest technology—only two atoms thick

Researchers from Tel Aviv University have engineered the world's tiniest technology, with a thickness of only two atoms. According to the researchers, the new technology proposes a way for storing electric information in ...

Quantum Âé¶¹ÒùÔºics Jun 28, 2021

The first on-chip valley-dependent quantum interference

A research team led by academician Guo Guangcan from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), collaborating with researchers from Sun Yat-sen University and Zhejiang University, ...

Nanomaterials Jun 17, 2021

Changing a 2D material's symmetry can unlock its promise

Optoelectronic materials that are capable of converting the energy of light into electricity, and electricity into light, have promising applications as light-emitting, energy-harvesting, and sensing technologies. However, ...

Quantum Âé¶¹ÒùÔºics Jun 14, 2021

How do electrons behave in quantum critical ferromagnets?

In a classical second-order phase transition, condensed matter systems acquire long-range order upon cooling below the transition temperature, and the properties near the transition are driven by thermal fluctuations. These ...

Quantum Âé¶¹ÒùÔºics Jun 9, 2021

Researchers achieve synergetic effects between spin-orbit coupling and Stark effect

Each electron carries one negative elementary charge, whose collective motion generates electric currents that drive the operation of lights, transistors and all kinds of electronic devices. However, as being an elementary ...

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