Strain-controlled high harmonic generation with Dirac fermions in silicene

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Triplet Fermions and Dirac Fermions in Borophene

Borophene is a monolayer materials made of boron. A perfect planar boropehene called β12 borophene has Dirac cones and they are well reproduced by a tight-binding model according to recent experimental and first-principles calculation results. We explicitly derive a Dirac theory for them. Dirac cones are gapless when the inversion symmetry exists, while they are gapped when it is broken. In add...

متن کامل

Observation of Dirac cone warping and chirality effects in silicene.

We performed low temperature scanning tunneling microscopy (STM) and spectroscopy (STS) studies on the electronic properties of (√3 × √3)R30° phase of silicene on Ag(111) surface. We found the existence of Dirac Fermion chirality through the observation of -1.5 and -1.0 power law decay of quasiparticle interference (QPI) patterns. Moreover, in contrast to the trigonal warping of Dirac cone in g...

متن کامل

Does the Dirac Cone Exist in Silicene on Metal Substrates?

Absence of the Dirac cone due to a strong band hybridization is revealed to be a common feature for epitaxial silicene on metal substrates according to our first-principles calculations for silicene on Ir, Cu, Mg, Au, Pt, Al, and Ag substrates. The destroyed Dirac cone of silicene, however, can be effectively restored with linear or parabolic dispersion by intercalating alkali metal atoms betwe...

متن کامل

Neutrinos Are Nearly Dirac Fermions

Neutrino masses and mixings are analyzed in terms of left-handed fields and a 6 × 6 complex symmetric mass matrix M whose singular values are the neutrino masses. An angle xν characterizes the kind of the neutrinos, with xν = 0 for Dirac neutrinos and xν = π/2 for Majorana neutrinos. If xν = 0, then baryonminus-lepton number is conserved. When xν ≈ 0, the six neutrino masses coalesce into three...

متن کامل

Beyond Dirac and Weyl Fermions

An international team of researchers has predicted the existence of several previously unknown types of quantum particles in materials. The particles— which belong to the class of particles known as fermions—can be distinguished by several intrinsic properties, such as their responses to applied magnetic and electric fields. In several cases, fermions in the interior of the material show their ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nanoscale

سال: 2018

ISSN: 2040-3364,2040-3372

DOI: 10.1039/c8nr07572g