Vortex fluctuations in underdoped Bi2Sr2CaCu2O8+δ crystals

被引:0
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作者
Colson, Sylvain [1 ]
Konczykowski, Marcin [1 ]
Gaifullin, Marat B. [2 ]
Matsuda, Yuji [2 ]
Gierlowski, Piotr [3 ]
Li, Ming [4 ]
Kes, Peter H. [4 ]
Van Der Beek, Cornelis J. [1 ]
机构
[1] Lab. des Solides Irradies, CNRS-UMR 76402 and CEA/DSM/DRECAM, Ecole Polytechnique, 91128 Palaiseau, France
[2] Institute for Solid Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
[3] Institute of Physics, Polish Academy of Sciences, Aleja Lotnikoáw 32/46, 02-668 Warsaw, Poland
[4] Karmerlingh Onnes Laboratorium, Leiden University, P.O. Box 9506, 2300 RA Leiden, Netherlands
关键词
Bismuth compounds - Electron resonance - Josephson junction devices - Kinetic theory - Magnetic anisotropy - Magnetic field effects - Magnetometers - Microwaves - Paramagnetism - Phase diagrams - Single crystals - Thermal effects;
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学科分类号
摘要
JPR measurements were performed on heavily underdoped BSCCO crystals. The measurements yielded the c-axis penetration depth, the anisotropy parameter γ(T), and the wandering length rw of vortex lines. The observed temperature and field dependences of rw suggest that thermal fluctuations soften the Josephson coupling contribution to the tilt modulus for short wavelengths.
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页码:1 / 137002
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