Magneto-optical observations of crossing-lattice state in Bi 2 Sr 2 CaCu 2 O 8 + y
Magneto-optical observations of crossing-lattice state in Bi 2 Sr 2 CaCu 2 O 8 + y
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DOI：
10.1103/physrevb.65.212502
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发表时间：
2002-05
影响因子：
3.7
通讯作者：
M. Yasugaki;K. Itaka;M. Tokunaga;N. Kameda;T. Tamegai
中科院分区：
文献类型：
--
作者：
M. Yasugaki;K. Itaka;M. Tokunaga;N. Kameda;T. Tamegai
The evolution of vortex states and vortex-lattice melting processes in ${\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8+y}$ under tilted fields are observed a by differential magnetooptical technique. The vortex-lattice melting transitions in the tilted vortex-lattice state and in the crossing-lattice state are found to be similar to each other. When the field is applied at large angles from the c axis, the nucleation position of the vortex-liquid paddle is shifted toward the direction of field inclination. The shift of the shielding current leading to the shift of the vortex dome naturally explains the observed phenomena. When a large in-plane field is applied, pancake vortices penetrate through one-dimensional channels starting from a fixed position at the sample edge. We can find a natural explanation for such a feature based on the crossing-lattice ground state.
The evolution of vortex states and vortex-lattice melting processes in ${\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8+y}$ under tilted fields are observed a by differential magnetooptical technique. The vortex-lattice melting transitions in the tilted vortex-lattice state and in the crossing-lattice state are found to be similar to each other. When the field is applied at large angles from the c axis, the nucleation position of the vortex-liquid paddle is shifted toward the direction of field inclination. The shift of the shielding current leading to the shift of the vortex dome naturally explains the observed phenomena. When a large in-plane field is applied, pancake vortices penetrate through one-dimensional channels starting from a fixed position at the sample edge. We can find a natural explanation for such a feature based on the crossing-lattice ground state.