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.
N1 - Funding Information:
We thank all the staff of TRIUMF μ SR for their technical support. The Aoyama-Gakuin University group was partly supported by the 21st COE program, “High-Tech Research Center” Project for Private Universities: matching fund subsidy for 2002–2004, and the Grant-in-Aid for Scientific Research on Priority Areas, both provided by the Ministry of Education, Culture, Sports, Science and Technology of Japan.
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 -