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Recommended White Papers:
[W-SC-214] High-temperature Superconductor Analysis Accounting for Anisotropy
Medical, transport, energy, and a wide range of other fields are optimistic about applications for high-temperature superconductors that can realize superconductivity at liquid nitrogen temperatures. Unfortunately, prototypes of superconducting machines to verify performance are not only costly but also require time and come with the risk of quenching and structural damage. That is why the use of simulations is critical when evaluating designs.
Rare-earth Barium Copper Oxide (REBCO) tape wire has critical current characteristics with a particularly high critical temperature compared to other high-temperature superconductors. However, REBCO does have critical current density characteristics that vary with the direction of the magnetic field due to the anisotropy of the crystal structure. The critical current density is higher when the magnetic field is on the ab plane (inner tape plane) and lower when on the c-axis (perpendicular to tape plane).
Simulations that ignore anisotropy can have serious adverse effects on the accuracy of designs. For instance, an analysis will overestimate the critical current flowing in the superconductor when only accounting for characteristics for the in-plane direction, or underestimate the critical current when only accounting for characteristics perpendicular to the plane. Results from these analyses can overestimate or underestimate the risk of quenching or lead to mistakes in the limit design. This makes material modeling that can precisely reproduce the actual phenomena indispensable to high-fidelity analyses.
This paper examines the need to account for anisotropy in electromagnetic field simulations through the analysis of the CORC cable presented in Fig. 1. This case study evaluates the critical current density distribution, current density distribution, and alternating current losses when applying a uniform alternating magnetic field.
Notice: Data Retention Policy for Inactive JMAG-Express Online Accounts
To ensure a secure and stable service environment, we would like to inform you about the data retention policy for accounts that have not been logged in for an extended period.
In accordance with the JMAG-Express Terms and Conditions, data stored in cloud storage for accounts that have not logged in for 60 days will be subject to deletion.
This measure is taken to properly manage server resources and maintain service quality.
JMAG Users Conference 2026 in Shanghai
We are pleased to announce the JMAG Users Conference in China.
Dates: Apr 9-10, 2026
Location: Holiday Inn Shanghai Pudong (Shanghai, China)
TAIPEI AMPA 2026
TAIPEI AMPA is an international mobility trade fair showcasing electric vehicles (EVs) and electrification, autonomous driving, in-vehicle electronics, and smart mobility.
JOTACTIC, the Taiwanese distributor for JMAG, will exhibit at the trade fair.
Dates: Apr 14-17, 2026
Location: Taipei Nangang Exhibition Center, Hall 1 (TaiNEX 1) (Taipei, Taiwan)
Booth number: K0622
