中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
理论物理研究所 [2]
长春光学精密机械与物... [1]
高能物理研究所 [1]
上海光学精密机械研究... [1]
采集方式
OAI收割 [5]
内容类型
期刊论文 [4]
会议论文 [1]
发表日期
2006 [2]
1999 [2]
1989 [1]
学科主题
Physics [3]
筛选
浏览/检索结果:
共5条,第1-5条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE)
会议论文
OAI收割
Wei Z. P.
;
Lu Y. M.
;
Shen D. Z.
;
Wu C. X.
;
Zhang Z. Z.
;
Zhao D. X.
;
Zhang J. Y.
;
Fan X. W.
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2013/03/25
A set of ZnO/MgZnO heterostructures with well widths
Lw
varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton
while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness
the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.
Measurements of the cross sections for e(+)e(-)-> hadrons at 3.650, 3.6648, 3.773 GeV and the branching fraction for psi (3770)-> non-D(D)over-bar
期刊论文
OAI收割
PHYSICS LETTERS B, 2006, 卷号: 641, 期号: 2, 页码: 145-155
作者:
BES Callaboration
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2015/12/02
E&E-ANNIHILATION
E(+)E(-) ANNIHILATION
DECAY WIDTHS
VACUUM POLARIZATION
HADRONIC PRODUCTION
QUANTUM NUMBERS
ENERGY
PHYSICS
MASS
J/PSI-PI(+)PI(-)
Couplings of pions with excited heavy mesons from light-cone QCD sum rules in the leading order of HQET
期刊论文
OAI收割
EUROPEAN PHYSICAL JOURNAL C, 1999, 卷号: 6, 期号: 2, 页码: 307-311
作者:
  |  
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2012/08/29
Effective Field-theory
Quark Effective Theory
Decay Widths
Form-factors
Expansion
Masses
The K*K pi and rho pi pi couplings in QCD
期刊论文
OAI收割
EUROPEAN PHYSICAL JOURNAL A, 1999, 卷号: 4, 期号: 3, 页码: 277-281
作者:
Zhu, SL
;
Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
  |  
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2012/08/29
Sum-rules
Resonance Physics
Quantum Chromodynamics
Magnetic-moments
Leading Order
Decay Widths
Hqet
Vacuum
Mesons
Laser intensity effects in photoemission and photoelectron spectra produced in laser-induced autoionisation
期刊论文
OAI收割
j. phys. b-at. mol. opt. phys., 1989, 卷号: 22, 期号: 13, 页码: 2115, 2127
姚关华
;
徐至展
收藏
  |  
浏览/下载:1212/186
  |  
提交时间:2009/09/18
Theoretical or Mathematical/ atomic photoionisation
atomic spectral line breadth
autoionisation
photoelectron spectra/ photoionising decay
photoemission
photoelectron spectra
laser-induced autoionisation
radiative decay
laser intensity dependence
power broadening
doublet peak heights
field strength
lowest-order peaks
peak switching
above-threshold ionisation
energetic photoelectrons
atomic parameters/ A3280D Atomic autoionization
A3280F Atomic photoionization, photodetachment, photoelectron spectra
A3270J Atomic line shapes, widths, and shifts