TY - JOUR
T1 - High-frequency properties of superconductors
T2 - A comparison between MgB2 and high-temperature superconductors
AU - Lofland, S. E.
AU - Tyagi, S. D.
AU - Ramanujachary, K. V.
AU - Botsford, M.
N1 - Funding Information:
This work was partially supported by the New Jersey Commission on Higher Education, and KVR thanks Research Corporation for partial support of this work.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/4/1
Y1 - 2002/4/1
N2 - We present the results of ac susceptibility and microwave studies of polycrystalline MgB2. The frequency dependence of the ac susceptibility indicates that there is a strong intergranular pinning potential (8 eV) for the vortices. The microwave results are explained in terms of resistively shunted Josephson junctions within the sample. The field dependence of the microwave absorption also indicates that the intergranular pinning is strong in this material.
AB - We present the results of ac susceptibility and microwave studies of polycrystalline MgB2. The frequency dependence of the ac susceptibility indicates that there is a strong intergranular pinning potential (8 eV) for the vortices. The microwave results are explained in terms of resistively shunted Josephson junctions within the sample. The field dependence of the microwave absorption also indicates that the intergranular pinning is strong in this material.
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U2 - 10.1016/S0921-4534(01)01307-7
DO - 10.1016/S0921-4534(01)01307-7
M3 - Article
AN - SCOPUS:0036532519
VL - 370
SP - 27
EP - 30
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1
ER -