搜索结果: 1-15 共查到“理学 Superlattices”相关记录20条 . 查询时间(0.06 秒)
Manipulating infrared photons using plasmons in transparent graphene superlattices
Manipulating infrared photons plasmons transparent graphene superlattices
2012/2/27
Superlattices are artificial periodic nanostructures which can control the flow of electrons. Their operation typically relies on the periodic modulation of the electric potential in the direction of ...
Optical Properties of (SrMnO3)n/(LaMnO3)2n superlattices: an insulator-to-metal transition observed in the absence of disorder
Optical Properties insulator-to-metal transition absence of disorder
2010/11/23
We measure the optical conductivity 1(!) of (SrMnO3)n/(LaMnO3)2n superlattices (SL) for
n = 1, 3, 5, and 8 and 10 < T < 400 K. Data show a T -dependent insulator to metal transition
(IMT) for n 3...
Localized vs. delocalized character of charge carriers in LaAlO3/ SrTiO3 superlattices
Localized vs. delocalized character charge carriers
2010/11/24
Understanding the nature of electrical conductivity, superconductivity and magnetism between
layers of oxides is of immense importance for the design of electronic devices employing oxide
heterostru...
Nonequilibrium free energy, H theorem and self-sustained oscillations for Boltzmann-BGK descriptions of semiconductor superlattices
Nonequilibrium processes Boltzmann equation current fluctuations
2010/11/22
Semiconductor superlattices (SL) may be described by a Boltzmann-Poisson kinetic equation with a Bhatnagar-Gross-Krook (BGK) collision term which preserves charge, but not momentum or energy.
Ultrafast dephasing of coherent optical phonons in atomically controlled GeTe/Sb$_{2}$Te$_{3}$ superlattices
Ultrafast dephasing of coherent optical phonons
2010/11/23
Femtosecond dynamics of coherent optical phonons in GeTe/Sb2Te3 superlattices (SLs), a new
class of semiconductor SLs with three different states, have been investigated by using a reflectiontype pum...
Ultrafast dephasing of coherent optical phonons in atomically controlled GeTe/Sb$_{2}$Te$_{3}$ superlattices
Ultrafast dephasing coherent optical phonons
2010/11/18
Femtosecond dynamics of coherent optical phonons in GeTe/Sb$_{2}$Te$_{3}$ superlattices (SLs), a new class of semiconductor SLs with three different states, have been investigated by using a reflecti...
Stochastic webs and quantum transport in superlattices: an introductory review
stochastic webs quantum transport superlattices separatrix chaos
2010/4/7
Stochastic webs were discovered, first by Arnold for multi-dimensional Hamiltonian systems, and later by Chernikov et al. for the low-dimensional case. Generated by weak perturbations, they consist of...
Two-dimensional solitons at interfaces between binary superlattices and homogeneous lattices
two-dimensional surface solitons superlattice homogeneous square lattice
2010/4/8
We report on the experimental observation of two-dimensional surface solitons residing at the interface between a homogeneous square lattice and a superlattice that consists of alternating "deep" and ...
Stability properties of periodically driven overdamped pendula and their implications to physics of semiconductor superlattices and Josephson junctions
differential equation time dependence sinusoidal nonlinearity
2010/4/8
We consider the first order differential equation with a sinusoidal nonlinearity and periodic time dependence, that is, the periodically driven overdamped pendulum. The problem is studied in the case ...
Current Oscillation and dc-Voltage-Controlled Chaotic Dynamics in
Semiconductor Superlattices
semiconductor superlattices current oscillation chaotic dynamics
2007/8/15
2006Vol.45No.2pp.363-368DOI:
Current Oscillation and dc-Voltage-Controlled Chaotic Dynamics in
Semiconductor Superlattices
WANG Chang and LÜ Jing-Tao
State Key Labo...
On Mathematical Modelling and Analysis in Semiconductors and Superlattices Part II: Modelling,
2007/7/28
期刊信息
篇名
On Mathematical Modelling and Analysis in Semiconductors and Superlattices Part II: Modelling,
语种
英文
撰写或编译
撰写
作者
Xiao L.,Qiu Y.,and Zhang K. J.
第一作者单位
东北师范大学
刊物名称
Advances in Mathematics (Chi...
期刊信息
篇名
A Scattering Matrix Model of Semiconductor Superlattices in Multidimensional Wave-Vector Space and Its Diffusion Limit,
语种
英文
撰写或编译
撰写
作者
Degond P.,Zhang K.J.
第一作者单位
东北师范大学
刊物名称
Chinese Annals...
On Mathematical Modelling and Analysis in Semiconductors and Superlattices Part I: Modelling,
2007/7/28
期刊信息
篇名
On Mathematical Modelling and Analysis in Semiconductors and Superlattices Part I: Modelling,
语种
英文
撰写或编译
撰写
作者
Xiao L.,Qiu Y.,and Zhang K. J.
第一作者单位
东北师范大学
刊物名称
Advances in Mathematics (Chin...
The Effective Charge Velocity of Spin-{1}{2} Superlattices
Heinsenberg DMRG Plateaus Luttinger liquid
2010/9/25
We calculate the spin gap of homogeneous and inhomogeneous spin chains, using the White’s density matrix renormalization group technique. We found that the spin gap is related to the ration between th...
Evidence of the Miniband Formation in InGaAs/InP Superlattices
Superlattices Plasmons Raman scattering
2010/9/25
The formation of the miniband electron energy structure was explored in doped InGaAs=InP superlattices with different periods. The analysis of the Raman data allowed us to conclude that in spite of th...