Magnetic response in the superconducting state of 1H-Ca(Al 0.5Si 0.5) 2 studied by μSR

S. Kuroiwa; H. Takagiwa; M. Yamazawa; Y. Tomita; J. Akimitsu; K. Ohishi; A. Koda; S. R. Saha; R. Kadono; W. Higemoto

doi:10.1016/j.physb.2005.11.067

Magnetic response in the superconducting state of 1H-Ca(Al _0.5Si _0.5) ₂ studied by μSR

S. Kuroiwa, H. Takagiwa, M. Yamazawa, Y. Tomita, J. Akimitsu, K. Ohishi, A. Koda, S. R. Saha, R. Kadono, W. Higemoto

Research output: Contribution to journal › Conference article

1 Citation (Scopus)

Abstract

Magnetic field dependence of the effective penetration depth (λ) determined by μSR is reported for 1H-Ca(Al0.5Si0.5)2, a structurally new phase of Ca(Al0.5Si0.5)2. The new phase has an AlB2-type crystal structure with P3 symmetry which, in contrast to earlier reports, does not exhibit superlattice structure along the c-axis. The bulk susceptibility measurement indicates that the upper critical field is much lower than that in superstructured ones for both c- and a-axis directions. A weak anisotropy in the superconducting order parameter is suggested from the increase of λ with increasing external field.

Original language	English
Pages (from-to)	251-254
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	374-375
DOIs	https://doi.org/10.1016/j.physb.2005.11.067
Publication status	Published - Mar 31 2006
Externally published	Yes
Event	Proceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance - Duration: Aug 8 2005 → Aug 12 2005

Keywords

Ca(Al Si )
Flux line lattice
Magnetic penetration depth
μSR

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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Kuroiwa, S., Takagiwa, H., Yamazawa, M., Tomita, Y., Akimitsu, J., Ohishi, K., Koda, A., Saha, S. R., Kadono, R., & Higemoto, W. (2006). Magnetic response in the superconducting state of 1H-Ca(Al _0.5Si _0.5) ₂ studied by μSR. Physica B: Condensed Matter, 374-375, 251-254. https://doi.org/10.1016/j.physb.2005.11.067

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title = "Magnetic response in the superconducting state of 1H-Ca(Al 0.5Si 0.5) 2 studied by μSR",

abstract = "Magnetic field dependence of the effective penetration depth (λ) determined by μSR is reported for 1H-Ca(Al0.5Si0.5)2, a structurally new phase of Ca(Al0.5Si0.5)2. The new phase has an AlB2-type crystal structure with P3 symmetry which, in contrast to earlier reports, does not exhibit superlattice structure along the c-axis. The bulk susceptibility measurement indicates that the upper critical field is much lower than that in superstructured ones for both c- and a-axis directions. A weak anisotropy in the superconducting order parameter is suggested from the increase of λ with increasing external field.",

keywords = "Ca(Al Si ), Flux line lattice, Magnetic penetration depth, μSR",

author = "S. Kuroiwa and H. Takagiwa and M. Yamazawa and Y. Tomita and J. Akimitsu and K. Ohishi and A. Koda and Saha, {S. R.} and R. Kadono and W. Higemoto",

year = "2006",

month = mar,

day = "31",

doi = "10.1016/j.physb.2005.11.067",

language = "English",

volume = "374-375",

pages = "251--254",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

note = "Proceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance ; Conference date: 08-08-2005 Through 12-08-2005",

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TY - JOUR

T1 - Magnetic response in the superconducting state of 1H-Ca(Al 0.5Si 0.5) 2 studied by μSR

AU - Kuroiwa, S.

AU - Takagiwa, H.

AU - Yamazawa, M.

AU - Tomita, Y.

AU - Akimitsu, J.

AU - Ohishi, K.

AU - Koda, A.

AU - Saha, S. R.

AU - Kadono, R.

AU - Higemoto, W.

PY - 2006/3/31

Y1 - 2006/3/31

N2 - Magnetic field dependence of the effective penetration depth (λ) determined by μSR is reported for 1H-Ca(Al0.5Si0.5)2, a structurally new phase of Ca(Al0.5Si0.5)2. The new phase has an AlB2-type crystal structure with P3 symmetry which, in contrast to earlier reports, does not exhibit superlattice structure along the c-axis. The bulk susceptibility measurement indicates that the upper critical field is much lower than that in superstructured ones for both c- and a-axis directions. A weak anisotropy in the superconducting order parameter is suggested from the increase of λ with increasing external field.

AB - Magnetic field dependence of the effective penetration depth (λ) determined by μSR is reported for 1H-Ca(Al0.5Si0.5)2, a structurally new phase of Ca(Al0.5Si0.5)2. The new phase has an AlB2-type crystal structure with P3 symmetry which, in contrast to earlier reports, does not exhibit superlattice structure along the c-axis. The bulk susceptibility measurement indicates that the upper critical field is much lower than that in superstructured ones for both c- and a-axis directions. A weak anisotropy in the superconducting order parameter is suggested from the increase of λ with increasing external field.

KW - Ca(Al Si )

KW - Flux line lattice

KW - Magnetic penetration depth

KW - μSR

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U2 - 10.1016/j.physb.2005.11.067

DO - 10.1016/j.physb.2005.11.067

M3 - Conference article

AN - SCOPUS:33644688778

VL - 374-375

SP - 251

EP - 254

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

T2 - Proceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance

Y2 - 8 August 2005 through 12 August 2005

ER -