Results
author = "Liu, Z.Y."
Long term monitoring of mode switching for PSR B0329+54
Author(s) :
Chen, J. L.
,
Wang, H. G.
,
Wang, N.
,
Lyne, A.
,
Liu, Z. Y.
,
Jessner, A.
,
Yuan, J. P.
,
Kramer, M.
Description :
The mode switching phenomenon of PSR B0329+54 is investigated based on the
long-term monitoring from September 2003 to April 2009 made with the Urumqi 25m
radio telescope at 1540 MHz. At that frequency, the change of relative
intensity between the leading and trailing components is the predominant...
Repository :
arXiv
Language(s) :
Undetermined
Phototransistor Behavior Based on Dye-Sensitized Solar Cell
Description :
In the present work, a light-controlled device cell is established based on
the dye-sensitized solar cell using nanocrystalline TiO2 films. Voltage-current
curves are characterized by three types of transport behaviors: linear
increase, saturated plateau and breakdown-like increase, which are actu...
Repository :
arXiv
Language(s) :
Undetermined
Strong quantum fluctuation of vortices in the new superconductor $MgB_2$
Author(s) :
Wen, H. H.
,
Li, S. L.
,
Zhao, Z. W.
,
Ni, Y. M.
,
Ren, Z. A.
,
Che, G. C.
,
Yang, H. P.
,
Liu, Z. Y.
,
Zhao, Z. X.
Description :
By using transport and magnetic measurement, the upper critical field
$H_{c2}(T)$ and the irreversibility line $H_{irr}(T)$ has been determined. A
big separation between $H_{c2}(0)$ and $H_{irr}(0)$ has been found showing the
existence of a quantum vortex liquid state induced by quantum fluctuatio...
Repository :
arXiv
Language(s) :
Undetermined
Lower Critical Field at Odds with A S-Wave Superconductivity in The New Superconductor $MgB_2$
Author(s) :
Li, S. L.
,
Wen, H. H.
,
Zhao, Z. W.
,
Ni, Y. M.
,
Ren, Z. A.
,
Che, G. C.
,
Yang, H. P.
,
Liu, Z. Y.
,
Zhao, Z. X.
Description :
The lower critical field $H_{c1}$ has been carefully measured on a well
shaped cylindrical sample of the new superconductor $MgB_2$ fabricated by high
pressure synthesis. The penetration depth $\lambda$ is calculated from the
$H_{c1}$ data. It is found that a linear relation of $H_{c1}(T)$ appears...
Repository :
arXiv
Language(s) :
Undetermined
Suppression of Superconducting Critical Current Density by Small Flux Jumps in $MgB_2$ Thin Films
Author(s) :
Zhao, Z. W.
,
Li, S. L.
,
Ni, Y. M.
,
Yang, H. P.
,
Liu, Z. Y.
,
Wen, H. H.
,
Kang, W. N.
,
Kim, H. J.
,
Choi, E. M.
,
Lee, S. I.
Description :
By doing magnetization measurements during magnetic field sweeps on thin
films of the new superconductor $MgB_2$, it is found that in a low temperature
and low field region small flux jumps are taking place. This effect strongly
suppresses the central magnetization peak leading to reduced nominal
...
Repository :
arXiv
Language(s) :
Undetermined
Bulk Evidence for s-Wave Pairing Symmetry in the n-Type Infinite-Layer Cuprate $Sr_{0.9}La_{0.1}CuO_{2}$
Author(s) :
Liu, Z. Y.
,
Wen, H. H.
,
Shan, L.
,
Yang, H. P.
,
Lu, X. F.
,
Gao, H.
,
Park, Min-Seok
,
Jung, C. U.
,
Lee, Sung-Ik
Description :
Low temperature specific heat of the electron-doped (n-type) infinite-layer
cuprate $Sr_{0.9}La_{0.1}CuO_{2}$ has been measured. The quasiparticle density
of states (DOS) in the mixed state is found to be consistent with the feature
of the s-wave pairing symmetry, agreeing very well with the earli...
Repository :
arXiv
Language(s) :
Undetermined
Temperature and magnetic field dependent tunneling spectroscopy of PtIr/Sr$_{0.9}$La$_{0.1}$CuO$_2$ point contact
Author(s) :
Shan, L.
,
Gao, H.
,
Liu, Z. Y.
,
Park, Min-Seok
,
Kim, Kyung Hee
,
Jung, C. U.
,
Lee, Sung-Ik
,
Wen, H. H.
Description :
Low barrier quasiparticle tunneling spectroscopy on
Sr$_{0.9}$La$_{0.1}$CuO$_2$ has been studied with
PtIr/Sr$_{0.9}$La$_{0.1}$CuO$_2$ point contacts at various temperatures and
magnetic fields. No zero-bias conductance peaks are observed. By fitting
tunneling conductance to Blonder-Tinkham-Klapwi...
Repository :
arXiv
Language(s) :
Undetermined
Growth and superconducting transition of $Pr_{1-x} Ca_x Ba_2 Cu_3 O_{7-\delta}$ ($x\approx0.5$) epitaxial thin films
Author(s) :
Xiang, J. Y.
,
Liu, Z. Y.
,
Li, J.
,
Wang, P.
,
Wang, R. L.
,
Yang, H. P.
,
Zhang, Y. Z.
,
Zheng, D. N.
,
Wen, H. H.
,
Zhao, Z. X.
Description :
Pr$_{1-x}$Ca$_x$Ba$_2$Cu$_3$O$_{7-\delta}$($x\approx$0.5) thin films have
been grown on SrTiO$_3$ and YSZ substrates by the pulsed laser ablation. The
substrate temperature dependence of orientation and superconducting poperties
were systematically studied. Good quality \textit{c} and {a}-axis ori...
Repository :
arXiv
Language(s) :
Undetermined
Strong pulses detected from a rotating radio transient J1819$-$1458
Author(s) :
Hu, H. D.
,
Esamdin, A.
,
Yuan, J. P.
,
Liu, Z. Y.
,
Xu, R. X.
,
Li, J.
,
Tao, G. C.
,
Wang, N.
Description :
We analyze individual pulses detected from RRAT J1819$-$1458. From April 2007
to April 2010, we carried out observations using the Nanshan 25-m radio
telescope of Urumqi Observatory at a central frequency of 1541.25 MHz. We
obtain a dispersion measure $DM=195.7\pm0.3$ pc cm^{-3} by analyzing all t...
Repository :
arXiv
Language(s) :
Undetermined
Colletotrichum - names in current use
Author(s) :
Hyde, K.D.
,
Cai, L.
,
Cannon, P.F.
,
Crouch, J.A.
,
Crous, P.W.
,
Damm, U.
,
Goodwin, P.H.
,
Chen, H.
,
Johnston, P.R.
,
Jones, E.B.G.
Description :
Filamentous fungi in the genus Colletotrichum are destructive pathogens that cause disease and crop losses in plants worldwide. Taxonomy and nomenclature in the group is confusing, even to scientists working in the field, and inaccurate diagnosis of species is not uncommon. In this review, we provid...
Repository :
Wageningen University and Researchcenter Publications
Language(s) :
English