... results in increasing the number of
pulses and hence decreases size of the generated mag-
netic nanofibers. Increasing repetition rate of the femto-
second laser results in generating smaller size magnetic
nanofibers. ... magnetic
nanofibers. The magnetic strength of the generated
nanofibers can be controlled by changing the repet ition
rate of the femtosecond la...
... rather
incorporated onto the sidewalls than diffusing up to
the top of the NWs. Finally, when the growth duration
approaches tens of minutes, Au may have completely
diffused away from the original ... growing with the same length
growth rate. The effect of a limited diffusion length is
readily visible in Figure 6. While the <110>-oriented
Ge NWs appear cylindrical at the beginni...
... the
magnetic measurement at RT. Combining with the
results of Raman and XPS, we suppose that the FM of
the Zn
1-x
Zr
x
O NPs is owing to t he oxygen vacancies
inducing by doping of the nonmagnetic ... no con-
sensusontheoriginofFMindopingZnO,sowe
researched the ori gin of RTFM in the doping ZnO
materials, it was hoped that we could get a better expla-
nation about this intractable...
... parameters
especially in biomedicine. The spherical shape and
monodispersibility of SPIONs are often a prerequisite for
application in living tissues [12]. So, optimization of the
synthesis of nanoparticles ... refers to heating
of cells attached to magnetic particle by an external AC
magnetic field. The increase in temperature is caused due
to hysteresis loss. In the cas...
... magnetocrystalline anisotropy energy of
particles in SNTs.
Keywords Short-nanotubes Á c-Fe
2
O
3
Á
Magnetic properties
Introduction
In recent years, the assembled nanostructures of magnetic
iron oxide materials ... after the
annealing process were carried out at 300 K in the applied
magnetic field sweeping from -15 to 15 kOe. As shown in
Fig. 4, the saturation magnetization (...
... Li (&)
Institute of Applied Magnetics, Key Laboratory of Magnetism
and Magnetic Materials of Ministry of Education, Lanzhou
University, 730000 Lanzhou, People’s Republic of China
e-mail: ... molecular
imaging agents in magnetic resonance imaging (MRI) [7].
The applications of CoFe
2
O
4
are strongly in uenced by its
magnetic properties. For biomedical applications, Co...
... out using EDS and is shown in Fig. 3.
Fig. 2 a TEM image of Co NT, b TEM image of Ni NW (inset: ED of Ni NW), c FESEM image of Ni @ Co nanorods, and d TEM image of Ni
@ Co nanorod, after removing ... morphology of Ni @ Co nanorods. Individual
nanorods were separated by etching out the alumina using
3 M sodium hydroxide (NaOH) solution and decanting the
dissolved alumina usi...
... under
continuous excitation at 980 nm. Then, a thermal treatment for the products was found to enhance the
luminescence intensity. In addition, because of its inherent merit in high yielding and being ... uniformity
of about 20 nm in diameter. The X-ray powder diffract-
ometer (XRD) pattern (Figure 2B) shows well-defined
peaks, indicating the high crystallinity of the syn thesized...
... added
dropwise into 20 g of TEOS under vigorous stirring.
Strong magnetic stirring was maintained for 3 h. The
solution was then heated in an oven at 80°C for 5 to 6
days for crystallization, resulting in ... of well-dispersed particles
without interfacial incompatibility and defects between
the inorganic material and the polymer. Therefore, care-
ful selection of a pair of po...
... is of spe-
cial interest. Most device applications entail the use of
materials in the form of thin films. Determining the
intrinsic properties of such films is difficult. Properties of
the interface ... synthesized in the
form of nanocrystals or nanorods [3-5]. Inducing dimen-
sional constraints by reducing the size of one or more
dimensions has produced emergent phenomena...