Âé¶¹ÒùÔº

Search results for inversion symmetry

Optics & Photonics Dec 30, 2020

Designing Dirac vortex topological photonic crystal fibres

Optical fibres made of topological photonic crystals allow improved versatility and control across the modes and polarization of light they transmit. Compositionally, photonic crystals contain bandgaps to prevent the passage ...

General Âé¶¹ÒùÔºics Dec 28, 2020

Searching for invisible axion dark matter with a new multiple-cell cavity haloscope

Over the past few decades, many experimental physicists have been probing the existence of particles called axions, which would result from a specific mechanism that they think could explain the contradiction between theories ...

Superconductivity Nov 25, 2020

Progress in electronic structure and topology in nickelates superconductors

The discovery of high Tc superconductivity in cuprates attracts people to explore superconductivity in nickelates, whose crystal structures are similar to cuprates. Recently, Danfeng Li et al. at Stanford University published ...

Quantum Âé¶¹ÒùÔºics Sep 8, 2020

Predictions of magnetic field response in 2-D valleytronics materials

NUS researchers have developed a parameter-free approach to quantitatively predict the response of two-dimensional (2-D) valleytronics materials to an external magnetic field. These predictions are important because they ...

Superconductivity Sep 3, 2020

An unusual superconductor

Professor Wang Jian at Peking University and collaborators investigated the superconducting properties of two-dimensional crystalline superconducting PdTe2 films grown by molecular beam epitaxy. They observed the experimental ...

Optics & Photonics Aug 24, 2020

Routing valley exciton emission of a monolayer via in-plane inversion-symmetry broken PhC slabs

The valleys of two-dimensional transition metal dichalcogenides (TMDCs) offer a new degree of freedom for information processing and have attracted tremendous interest for their possible applications in valleytronics. To ...

Quantum Âé¶¹ÒùÔºics Aug 5, 2020

Manifestation of quantum distance in flat band materials

The geometry of an object indicates its shape or the relationship of its parts to each other. Did you know that the electrons in solids also have geometric structures? In quantum mechanics, an electron in solids takes the ...

Materials Science Jul 15, 2020

Higher-order topology found in 2-D crystal

Over the last decade, the field of condensed matter physics has experienced a golden age with the discovery of new materials and properties, and related technologies being developed at breakneck speed thanks to the arrival ...

General Âé¶¹ÒùÔºics Jun 17, 2020

Simultaneous nodal superconductivity and broken time-reversal symmetry in CaPtAs

In the vast majority of superconducting materials, Cooper pairs have what is known as even parity, which essentially means that their wave function does not change when electrons swap spatial coordinates. Conversely, some ...

Materials Science Jun 11, 2020

New topological materials could have multiple electrical properties

This it is the story of a unique material—made of a single compound, it conducts electrons in different ways on its different surfaces and doesn't conduct at all in its middle. It is also the story of three research groups—two ...

page 10 from 18