POSITRON ANNIHILATION STUDY OF PHASE TRANSITION IN HIGH-TEMPERATURE SUPERCONDUCTOR Y-Ba-Cu-O

ZHANG Duan-Ming; LI Guo-Yuan; WANG Jian-An; HE Yuan-Jin

Chinese Physics C> 1989, Vol. 13> Issue(9) : 769-771

POSITRON ANNIHILATION STUDY OF PHASE TRANSITION IN HIGH-TEMPERATURE SUPERCONDUCTOR Y-Ba-Cu-O

Department of Physics,Huazhong Univ of Sci & Tech,Wuhan1 Department of Mordern Applied Physics,Tsinghua Univ,Beijing

Abstract
HTML
Reference
Related

PDF

Abstract：
The resistance,positron lifetime spectra and the Doppler broadening energy spectra of high T_c supercondoctor Y-Ba-Cu-O are measured simultaneously near the phase transition temperature.It is shown that the critical temperature of the material is about 90°K,and the positron annihilation mean lifetime m as well as the Doppler broadening parmeters H and S are in a state of irregular vibration within the phase transition region.This pheuomenon may probaley relate to the instability of the crystal structure,and seems supporting the uperconducting mechanism in which the bipolaron theory a major role.

References

[1]	Y. C. Jenn et al.,Phys. Rev.B,Vol.36,No.7.(1987), p.3994.[2] S. J. Wang et al.,Phys. Rev.B, Vol.37,No. 1,(1988),p.603[3] B. Chakraverty, J. Physique, Vol. 42, No. 9,(1981), p,35.[4] A. Alexandrov and J.Ranniger,Phys,Rev. B,Vol,23,No.4,(1981), p.1796

[1]	LIANG Xiao-Feng , CHEN Huan , CHANG Lei , LIU Yu-Xin . Dynamical Chiral Symmetry Breaking and Phase Transition of Cuprate Superconductors in QED₃. Chinese Physics C, 2007, 31(2): 209-218.
[2]	PEI Guo-Xi , SUN Yao-Lin , LIU Jin-Tong , CHI Yun-Long , LIU Yu-Cheng , LIU Nian-Zong . BEPCⅡ Positron Source. Chinese Physics C, 2006, 30(1): 66-70.
[3]	ZHOU Chun-Lan , ZHANG Tian-Bao , MA Chuang-Xing , ZHANG Zhi-Ming , CAO Xing-Zhong , WANG Bao-Yi , WEI Long . The Analysis of 3γ/2γ in the Measurement of Positron Annihilation Doppler-broadening Spectroscopy. Chinese Physics C, 2006, 30(1): 84-87.
[4]	KONG Wei , XI Chuan-Ying , YE Bang-Jiao , WENG Hui-Min , ZHOU Xian-Yi , HAN Rong-Dian . Two-Detector Doppler Broadening of Annihilation Radiation in Metals. Chinese Physics C, 2004, 28(11): 1234-1237.
[5]	SU Run , LIU Feng-Qin , QIAN Hai-Jie . Study of Electronic Structure of Ultrathin Co Films Epitaxially Grown on Cu (111) by Angle-Resolved Photoemission Spectroscopy. Chinese Physics C, 2003, 27(2): 178-182.
[6]	ZHOU Chun-Lan , WANG Dan-Ni , HE Chuang-Xin , WANG Bao-Yi , WEI Long , HE Qing , JIA Quan-Jie . Study on Pores and Defect by Synthrotron Radiation Small Angle Reflection Method and Slow Positron Annihilation Technique. Chinese Physics C, 2003, 27(S1): 67-71.
[7]	Huang Maorong , Wang Yunyu , Yang Juhua , He Yongshu , Guo Yinghuan , Sun Tonghan . Study on InP Doped With Sulphur and Under DifferentTemperatures by Positron Annihilation. Chinese Physics C, 1996, 20(12): 1097-1102.
[8]	He Yuanjin , Xin Mingrui , Zhang Tianbao . Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe. Chinese Physics C, 1994, 18(8): 752-756.
[9]	GUO Xue-Zhe , WENG Hui-Min , HAN Rong-Dian . The Observation of Positron Surface State of Germanium. Chinese Physics C, 1992, 16(11): 961-964.
[10]	Chen Zhiqian , Zheng Renrong , Yin Chuanzong . Mössbauer Study of High T_c GdBa₂Cu₃O_7-δ. Chinese Physics C, 1992, 16(S2): 117-122.
[11]	CHEN Zhi-Qian , ZHENG Ren-Rong , YIN Chuan-Zong . Mossbauer Study of GdBa₂Cu₃O_7－δ. Chinese Physics C, 1992, 16(5): 385-389.
[12]	LI Wen-Xin , SUN Tong-Yu , WU Ding-Qing , JIN Gen-Ming , SUN Ru-Lin , LI Yun-Sheng , ZHAO Li-Li , WANG Su-Fang . Complete and Incomplete Fusion in the Reaction of ⁶⁵Cu With ¹⁶O Ions. Chinese Physics C, 1991, 15(4): 329-335.
[13]	ZHOU Xian-Yi , ZHANG Han , YUAN Song-Liu , WANG Shun-Xi , ZHU Jing-Sheng , ZHANG Qi-Rui . 1D-ACAR Spectra of YBa_2－xSr_xCu₃O_y. Chinese Physics C, 1991, 15(11): 961-965.
[14]	HUANG Mao-Rong , GU Hua , WANG Yun-Yu , HE Yong-Shu , YANG Ju-Hua , LIN Jian-Ming , XU Cheng-Huang . Study on KC1 Colorated Center Doped with Na⁺ Crystal by Positron Annihilation. Chinese Physics C, 1991, 15(2): 97-102.
[15]	WANG Shu-Ying , ZHANG Tian-Bao , SHENTU Yan-Min , WANG Hai-Dong , YANG Guang-Min . ON THE NATURE OF THE MEDIUM LIFETIME COMPONENT OF POSITRON ANNIHILATION IN TEFLON POLYMER. Chinese Physics C, 1990, 14(1): 1-7.
[16]	SHEN Ji-Qiang , LONG Qi-Wei , ZHOU Jin , WANG Ke-Lin . ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA. Chinese Physics C, 1989, 13(10): 879-885.
[17]	XIONG Liang-Yue . A PHENOMENOLOGICAL MODEL FOR POSITRON TRAPPING AT DISLOCATIONS. Chinese Physics C, 1988, 12(4): 433-439.
[18]	XIONG Liang-Yue(L.Y.Xiong) . THE ACCURATE DETERMINATION OF SMALL VARIATIONS FOR THE PARAMETERS OF POSITRON LIFETIME SPECTRA IN AMORPHOUS ALLOY. Chinese Physics C, 1986, 10(5): 513-518.
[19]	XIONG Xing-Min . A STUDY OF DEFECTS DEFECTS IN GaAs BY POSITRON ANNIHILATION. Chinese Physics C, 1986, 10(4): 459-465.
[20]	WANG Shu-Ying . METHOD OF ANALYSING POSITRON ANNIHILATION LIFETIME SPECTRUM WITH A MULTI EXPONENTIAL CURVE FITTING. Chinese Physics C, 1983, 7(4): 408-414.

Access

Get Citation

ZHANG Duan-Ming, LI Guo-Yuan, WANG Jian-An and HE Yuan-Jin. POSITRON ANNIHILATION STUDY OF PHASE TRANSITION IN HIGH-TEMPERATURE SUPERCONDUCTOR Y-Ba-Cu-O[J]. Chinese Physics C, 1989, 13(9): 769-771.

ZHANG Duan-Ming, LI Guo-Yuan, WANG Jian-An and HE Yuan-Jin. POSITRON ANNIHILATION STUDY OF PHASE TRANSITION IN HIGH-TEMPERATURE SUPERCONDUCTOR Y-Ba-Cu-O[J]. Chinese Physics C, 1989, 13(9): 769-771. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(3609)
PDF Downloads(438)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

POSITRON ANNIHILATION STUDY OF PHASE TRANSITION IN HIGH-TEMPERATURE SUPERCONDUCTOR Y-Ba-Cu-O

Corresponding author: ZHANG Duan-Ming,

Department of Physics,Huazhong Univ of Sci & Tech,Wuhan1 Department of Mordern Applied Physics,Tsinghua Univ,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1989-09-05

Abstract: The resistance,positron lifetime spectra and the Doppler broadening energy spectra of high T_c supercondoctor Y-Ba-Cu-O are measured simultaneously near the phase transition temperature.It is shown that the critical temperature of the material is about 90°K,and the positron annihilation mean lifetime m as well as the Doppler broadening parmeters H and S are in a state of irregular vibration within the phase transition region.This pheuomenon may probaley relate to the instability of the crystal structure,and seems supporting the uperconducting mechanism in which the bipolaron theory a major role.