A Small Angle Neutron Scattering Study of the Vortex Matter in La2-xSrxCuO4 (x = 0.17)

R Gilardi; S Streule; J Mesot; AJ Drew; U Divakar; Stephen Leslie Lee; SP Brown; EM Forgan; N Momono; M Oda

doi:10.1142/S0217979203021769

A Small Angle Neutron Scattering Study of the Vortex Matter in La_2-xSr_xCuO₄ (x = 0.17)

R Gilardi, S Streule, J Mesot, AJ Drew, U Divakar, Stephen Leslie Lee, SP Brown, EM Forgan, N Momono, M Oda

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The magnetic phase diagram of slightly overdoped La2-xSrxCuO4 (x = 0.17) is characterised by a field-induced hexagonal to square transition of the vortex lattice at low fields (similar to0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett. 88, 217003 (2002)]. Here we report on a small angle neutron scattering study of the vortex lattice at higher fields, that reveals no further change of the coordination of the square vortex lattice up to 10.5 Tesla applied perpendicular to the CuO2 planes. Moreover, it is found that the diffraction signal disappears at temperatures well below T-c, due to the melting of the vortex lattice.

Original language	English
Pages (from-to)	3411-3414
Number of pages	4
Journal	International Journal of Modern Physics B
Volume	17
Issue number	18-20
DOIs	https://doi.org/10.1142/S0217979203021769
Publication status	Published - 10 Aug 2003
Event	4th International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials - San Diego, CA, United States Duration: 16 Jan 2003 → 21 Jan 2003

Keywords

small angle neutron scattering
vortex lattice
La2-xSrxCuO4
WAVE SUPERCONDUCTORS

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10.1142/S0217979203021769

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title = "A Small Angle Neutron Scattering Study of the Vortex Matter in La2-xSrxCuO4 (x = 0.17)",

abstract = "The magnetic phase diagram of slightly overdoped La2-xSrxCuO4 (x = 0.17) is characterised by a field-induced hexagonal to square transition of the vortex lattice at low fields (similar to0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett. 88, 217003 (2002)]. Here we report on a small angle neutron scattering study of the vortex lattice at higher fields, that reveals no further change of the coordination of the square vortex lattice up to 10.5 Tesla applied perpendicular to the CuO2 planes. Moreover, it is found that the diffraction signal disappears at temperatures well below T-c, due to the melting of the vortex lattice.",

keywords = "small angle neutron scattering, vortex lattice, La2-xSrxCuO4, WAVE SUPERCONDUCTORS",

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T1 - A Small Angle Neutron Scattering Study of the Vortex Matter in La2-xSrxCuO4 (x = 0.17)

AU - Gilardi, R

AU - Streule, S

AU - Mesot, J

AU - Drew, AJ

AU - Divakar, U

AU - Lee, Stephen Leslie

AU - Brown, SP

AU - Forgan, EM

AU - Momono, N

AU - Oda, M

PY - 2003/8/10

Y1 - 2003/8/10

N2 - The magnetic phase diagram of slightly overdoped La2-xSrxCuO4 (x = 0.17) is characterised by a field-induced hexagonal to square transition of the vortex lattice at low fields (similar to0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett. 88, 217003 (2002)]. Here we report on a small angle neutron scattering study of the vortex lattice at higher fields, that reveals no further change of the coordination of the square vortex lattice up to 10.5 Tesla applied perpendicular to the CuO2 planes. Moreover, it is found that the diffraction signal disappears at temperatures well below T-c, due to the melting of the vortex lattice.

AB - The magnetic phase diagram of slightly overdoped La2-xSrxCuO4 (x = 0.17) is characterised by a field-induced hexagonal to square transition of the vortex lattice at low fields (similar to0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett. 88, 217003 (2002)]. Here we report on a small angle neutron scattering study of the vortex lattice at higher fields, that reveals no further change of the coordination of the square vortex lattice up to 10.5 Tesla applied perpendicular to the CuO2 planes. Moreover, it is found that the diffraction signal disappears at temperatures well below T-c, due to the melting of the vortex lattice.

KW - small angle neutron scattering

KW - vortex lattice

KW - La2-xSrxCuO4

KW - WAVE SUPERCONDUCTORS

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JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 18-20

T2 - 4th International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials

Y2 - 16 January 2003 through 21 January 2003

ER -

A Small Angle Neutron Scattering Study of the Vortex Matter in La_2-xSr_xCuO₄ (x = 0.17)

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Keywords

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