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20032009
most citedRoom temperature ferromagnetism in carbon-implanted ZnO

193 citations

Showing 2009Show all

9 papers · 1 filter

physics.optics2009

Moving Targets Virtually Via Composite Optical Transformation

Wei Xiang Jiang, Tie Jun Cui

We propose a composite optical transformation to design an illusion device which can move the image of a target from one place to another place. Enclosed by such an illusion device…

math.CO20095 cited

An Improvement on Vizing's Conjecture

Yunjian Wu

Let denote the domination number of a graph . A {\it Roman domination function} of a graph is a function such that every vertex with 0 has a neighb…

cond-mat.mtrl-sci200938 cited

Spinel ferrite nanocrystals embedded inside ZnO: magnetic, electronic and magneto-transport properties

Shengqiang Zhou, K. Potzger, Qingyu Xu +8

In this paper we show that spinel ferrite nanocrystals (NiFe2O4, and CoFe2O4) can be texturally embedded inside a ZnO matrix by ion implantation and post-annealing. The two kinds o…

cond-mat.mtrl-sci200956 cited

Ferromagnetic transition metal implanted ZnO: a diluted magnetic semiconductor?

Shengqiang Zhou, K. Potzger, Qingyu Xu +7

Recently theoretical works predict that some semiconductors (e.g. ZnO) doped with magnetic ions are diluted magnetic semiconductors (DMS). In DMS magnetic ions substitute cation si…

physics.optics20094 cited

Fast and accurate simulations of transmission-line metamaterials using transmission-matrix method

Hui Feng Ma, Tie Jun Cui, Jessie Yao Chin +1

Recently, two-dimensional (2D) periodically L and C loaded transmission-line (TL) networks have been applied to represent metamaterials. The commercial Agilent's Advanced Design Sy…

cond-mat.mes-hall2009

Quantum Hall Effect in Biased Bilayer Graphene

R. Ma, L. J. Zhu, L. Sheng +2

We numerically study the quantum Hall effect in biased bilayer graphene based on a tight-binding model in the presence of disorder. Integer quantum Hall plateaus with quantized con…