Effect of stripe order on the vortex phase transition in La1.44Nd0.4Sr0.16CuO4 films

doi:10.1088/0953-2048/22/8/085010

IMR OpenIR

	Effect of stripe order on the vortex phase transition in La1.44Nd0.4Sr0.16CuO4 films
	Zhang, Y. Q.1,2; Ding, J. F.1,2; Xiang, X. Q.1,2; Li, X. G.1,2; Chen, Q. H.3
通讯作者	Zhang, Y. Q.()
	2009-08-01
发表期刊	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
ISSN	0953-2048
卷号	22 期号:8 页码:6
摘要	The vortex phase transition in La1.44Nd0.4Sr0.16CuO4 epitaxial films with different thicknesses under a compressive strain were studied systematically by measuring the current-voltage (IV) characteristics in magnetic fields perpendicular to the CuO2 planes. For a strongly compressed thin film, in which the static stripe order is destroyed, the IV curves show a good three-dimensional (3D) vortex glass (VG) scaling collapse in various magnetic fields, indicating a 3D VG phase transition. By applying the standard scaling procedure to the data of a strain-released thick film with static stripe order, neither a 3D nor a quasi-2D VG model works well. Further investigation shows that, in order to achieve a good scaling collapse, the Kosterlitz-Thouless correlation length should be used for the isothermals above T-g. The scaling of isothermals below T-g can also be optimized if the VG correlation length and adjusted static critical exponent nu are used with D = 2 only, indicating that a quasi-2D VG phase might exist. Our findings reveal that the nature of the vortex phase transition is completely altered in the presence of the stripe order.
资助者	National Natural Science Foundation of China ; National Basic Research Program of China
DOI	10.1088/0953-2048/22/8/085010
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50721061] ; National Natural Science Foundation of China[508320071] ; National Basic Research Program of China[2006CB601003] ; National Basic Research Program of China[2006CB922005] ; National Basic Research Program of China[2009CB929502]
WOS研究方向	Physics
WOS类目	Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000268257900011
出版者	IOP PUBLISHING LTD
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/97906
专题	中国科学院金属研究所
通讯作者	Zhang, Y. Q.
作者单位	1.Univ Sci & Technol China, Dept Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China 3.Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Y. Q.,Ding, J. F.,Xiang, X. Q.,et al. Effect of stripe order on the vortex phase transition in La1.44Nd0.4Sr0.16CuO4 films[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2009,22(8):6.
APA	Zhang, Y. Q.,Ding, J. F.,Xiang, X. Q.,Li, X. G.,&Chen, Q. H..(2009).Effect of stripe order on the vortex phase transition in La1.44Nd0.4Sr0.16CuO4 films.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,22(8),6.
MLA	Zhang, Y. Q.,et al."Effect of stripe order on the vortex phase transition in La1.44Nd0.4Sr0.16CuO4 films".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 22.8(2009):6.