TY - JOUR
T1 - Anomalous field dependence of the vortex-core radius and magnetic penetration depth in YNi2B2C probed by μSR
AU - Ohishi, K.
AU - Kakuta, K.
AU - Akimitsu, J.
AU - Higemoto, W.
AU - Kadono, R.
AU - Miller, R. I.
AU - Price, A.
AU - Kiefl, R. F.
AU - Sonier, J. E.
AU - Nohara, Minoru
AU - Suzuki, H.
AU - Takagi, H.
N1 - Funding Information:
We thank the TRIUMF staff for technical support. This work was partially supported by a Grant-in-aid for Science Research from the Ministry of Education, Science and Culture, Japan and by a Grant from the CREST.
PY - 2000/8
Y1 - 2000/8
N2 - Muon spin rotation measurements were performed to deduce the magnetic penetration depth λ and vortex core radius ρv in the mixed state of YNi2B2C for Hc1≪H≥0.7 Hc2. A preliminary analysis based on the modified London model shows that ρv decreases steeply with increasing H, while λ increases linearly in H. Results also shows that the vortex core radius ρv shrinks with increasing field and subsequently levels off at higher fields. These indicate the need to reconsider the conventional rigid normal electron core picture by taking account of vortex-vortex interaction mediated by delocalized quasi particles.
AB - Muon spin rotation measurements were performed to deduce the magnetic penetration depth λ and vortex core radius ρv in the mixed state of YNi2B2C for Hc1≪H≥0.7 Hc2. A preliminary analysis based on the modified London model shows that ρv decreases steeply with increasing H, while λ increases linearly in H. Results also shows that the vortex core radius ρv shrinks with increasing field and subsequently levels off at higher fields. These indicate the need to reconsider the conventional rigid normal electron core picture by taking account of vortex-vortex interaction mediated by delocalized quasi particles.
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U2 - 10.1016/S0921-4526(00)00415-4
DO - 10.1016/S0921-4526(00)00415-4
M3 - Conference article
AN - SCOPUS:0033686101
VL - 289-290
SP - 377
EP - 380
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
T2 - 8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99)
Y2 - 30 August 1999 through 3 September 1999
ER -