Superconducting gap anisotropy of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">LuNi</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:math>thin films from microwave surface impedance measurements

Andreone, A.; Cassinese, A.; Gianni, L.; Iavarone, M.; Palomba, F.; Vaglio, R.

doi:10.1103/physrevb.64.100505

Cited by 16 publications

(9 citation statements)

References 21 publications

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“…Rather, we observe that while |F (q 11 )|/H does indeed lie above |F (q 10 )|/H, other higher order form factors fall in between these two limiting curves. This is not surprising when one keeps in mind that LuNi 2 B 2 C, as well as the other members of the rare earth nickelborocarbide superconductors, posseses a significant in-plane anisotropy [60][61][62][63][64][65][66][67][68][69][70]. While it would be straightforward to incorporate an in-plane penetration depth anisotropy into the models discussed above, a model independent analysis of the data is desirable.…”

Section: Vortex Lattice Form Factormentioning

confidence: 99%

Vortex lattices in type-II superconductors studied by small-angle neutron scattering

Eskildsen

2011

Front. Phys.

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Here we review recent small-angle scattering studies of the vortex lattice in a range of type-II superconductors carried out by our group. Emphasis is placed on providing examples of the kind of information which can be obtained by such measurements, focusing in particular on studies of the vortex lattice structure and form factor in LuNi 2 B 2 C, TmNi 2 B 2 C, CeCoIn 5 and Ba(Fe 0.93 Co 0.07 ) 2 As 2 .

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Section: Vortex Lattice Form Factormentioning

confidence: 99%

Vortex lattices in type-II superconductors studied by small-angle neutron scattering

Eskildsen

2011

Front. Phys.

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“…It is well known that LuNi 2 B 2 C, as well as the other members of the rare-earth nickelborocarbide superconductors, posseses a significant in-plane anisotropy. [9][10][11][12][13][14][15][16][17][18][19][20] The fourfold, in-plane anisotropy manifests itself most strongly in the experimental data in Fig. 4, when comparing the ͓110͔ and ͓100͔ crystalline directions, corresponding to the ͑10͒ and ͑11͒ VL reflections.…”

Section: Higher Order Form Factors ͦF(q Hk )ͦmentioning

confidence: 99%

Small-angle neutron scattering study of the vortex lattice in superconductingLuNi2B2C

et al. 2009

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We present studies of the magnetic field distribution around the vortices in LuNi 2 B 2 C. Small-angle neutron scattering measurements of the vortex lattice ͑VL͒ in this material were extended to unprecedentedly large values of the scattering vector q, obtained both by using high magnetic fields to decrease the VL spacing and by using higher order reflections. A square VL, oriented with the nearest-neighbor direction along the crystalline ͓110͔ direction, was observed up to the highest measured field. The first-order VL form factor, ͉F͑q 10 ͉͒, was found to decrease exponentially with increasing magnetic field. Measurements of the higher-order form factors, ͉F͑q hk ͉͒, reveal a significant in-plane anisotropy and also allow for a real-space reconstruction of the VL field distribution.

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“…To correlate the above structural properties with the low energy excitations, we have carried out l ab ðTÞ measurements in the range 1.5 K-T c using different techniques: (i) a single coil-mutual inductance technique at 4 MHz [6]; (ii) a microstrip resonator with fundamental quasi-TEM mode at 1.44 GHz [7]; (iii) a sapphire loaded cylindrical resonator operating in the TE 011 mode at 19.8 GHz [8].…”

Section: Resultsmentioning

confidence: 99%

Magnetic penetration depth in epitaxial Nd-doped R(NdxBa2−x)Cu3O7 (R=Y and Nd) films

Andreone

Luca

Gennaro

et al. 2004

Journal of Magnetism and Magnetic Materials

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Superconducting gap anisotropy ofLuNi2B2Cthin films from microwave surface impedance measurements

Cited by 16 publications

References 21 publications

Vortex lattices in type-II superconductors studied by small-angle neutron scattering

Vortex lattices in type-II superconductors studied by small-angle neutron scattering

Small-angle neutron scattering study of the vortex lattice in superconductingLuNi2B2C

Magnetic penetration depth in epitaxial Nd-doped R(NdxBa2−x)Cu3O7 (R=Y and Nd) films

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