Tossup

Manganese-containing structures based on this mineral can exhibit “colossal magnetoresistance.” The bismuth and oxygen Aurivillius phase of this mineral exhibits ferroelectricity and is a candidate for low-temperature co-fired ceramics. Strontium titanate was part of the first series (10[1])of a phase of this mineral named for Ruddlesden and Popper. High-temperature superconductors like YBCO have structures named for this mineral. Metal halides with structures named for this mineral are commonly used in solar cells. (10[1])The D-double-prime layer is characterized by high-pressure magnesium silicate called the “post” form of this mineral. This mineral names a structure for compounds of the form ABX3. For 10 points, what mineral consisting of calcium titanium oxide is named for a Russian mineralogist? ■END■

ANSWER: perovskite [accept post-perovskite; accept perovskite solar cells; prompt on PSCs]
<Chicago B, Other Science>
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Buzzes

PlayerTeamOpponentPositionValue
Viraj NegandhiTexas BTexas A3610
Bryan UgazASUTAMU7110

Summary

TournamentEditionTUHConv. %Neg %Average Buzz
California2025-02-01367%0%86.00
Florida2025-02-011100%0%72.00
Lower Mid-Atlantic2025-02-01560%0%96.33
Midwest2025-02-01683%17%64.00
North2025-02-0130%67%
Northeast2025-02-01580%0%73.25
Overflow2025-02-01475%25%57.00
South Central2025-02-012100%0%53.50
Southeast2025-02-01475%0%95.67
UK2025-02-011080%10%88.88
Upper Mid-Atlantic2025-02-01786%0%85.17
Upstate NY2025-02-0130%67%