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Commensurability between vortex spacing and half the crystal lattice constant in NdBa2Cu3Oy single crystals

Commensurability between vortex spacing and half the crystal lattice constant in NdBa2Cu3Oy single crystals
Commensurability between vortex spacing and half the crystal lattice constant in NdBa2Cu3Oy single crystals
Commensurability effects between vortex distance and crystal lattice constant are investigated by angular dependent magnetization in very pure twinned and twin-free NdBa2Cu3Oy single crystals. With increasing temperature the incommensurate states split up and become finally commensurate with half the crystal unit cell. These additional commensurate states are related to a second intrinsic pinning potential within the unit cell or alternatively to a superstructure from distortion of the vortex lattice with respect to the crystal lattice. The role of twins which favor and/or stabilizes the double periodicity is discussed furthermore.
1550-235X
Küpfer, H.
fea91a23-485e-4898-a8ec-8a2a41d4cb3f
Ravikumar, G.
ac888dc2-0a0b-4fcf-ba16-24cd8d26b27f
Wolf, Th.
2019b4da-c646-484a-b4dd-d0c1683434f6
Zhukov, A.
75d64070-ea67-4984-ae75-4d5798cd3c61
Will, A.
375370ed-7513-46c4-9d59-9848183c0be3
Leibrock, H.
5642c9b3-9c63-4512-a4ca-0e5a2dee60fe
Meier-Hirmer, R.
1cbdb4b5-7059-4748-8616-59eb62555679
Wühl, H.
1643ce7e-83e8-400e-a29f-b0cc9011237c
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
Küpfer, H.
fea91a23-485e-4898-a8ec-8a2a41d4cb3f
Ravikumar, G.
ac888dc2-0a0b-4fcf-ba16-24cd8d26b27f
Wolf, Th.
2019b4da-c646-484a-b4dd-d0c1683434f6
Zhukov, A.
75d64070-ea67-4984-ae75-4d5798cd3c61
Will, A.
375370ed-7513-46c4-9d59-9848183c0be3
Leibrock, H.
5642c9b3-9c63-4512-a4ca-0e5a2dee60fe
Meier-Hirmer, R.
1cbdb4b5-7059-4748-8616-59eb62555679
Wühl, H.
1643ce7e-83e8-400e-a29f-b0cc9011237c
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d

Küpfer, H., Ravikumar, G., Wolf, Th., Zhukov, A., Will, A., Leibrock, H., Meier-Hirmer, R., Wühl, H. and de Groot, P.A.J. (2002) Commensurability between vortex spacing and half the crystal lattice constant in NdBa2Cu3Oy single crystals. Physical Review B, 66 (6), [064512]. (doi:10.1103/PhysRevB.66.064512).

Record type: Article

Abstract

Commensurability effects between vortex distance and crystal lattice constant are investigated by angular dependent magnetization in very pure twinned and twin-free NdBa2Cu3Oy single crystals. With increasing temperature the incommensurate states split up and become finally commensurate with half the crystal unit cell. These additional commensurate states are related to a second intrinsic pinning potential within the unit cell or alternatively to a superstructure from distortion of the vortex lattice with respect to the crystal lattice. The role of twins which favor and/or stabilizes the double periodicity is discussed furthermore.

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Published date: 16 August 2002

Identifiers

Local EPrints ID: 37671
URI: http://eprints.soton.ac.uk/id/eprint/37671
ISSN: 1550-235X
PURE UUID: 045de151-9309-4a64-bd3d-0aa38e5869e0

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Date deposited: 25 May 2006
Last modified: 15 Jul 2019 19:03

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