Pressure-induced transition from Jeff = 1/2 to S = 1/2 states in CuAl2O4

Hwanbeom Cho , 1,2,3,* Choong H. Kim , 2,3 Yongmoon Lee,4 Kazuki Komatsu,5 Byeong-Gwan Cho,6 Deok-Yong Cho , 7 Taehun Kim , 2,3,8 Chaebin Kim , 2,3,8 Younghak Kim , 6 Tae Yeong Koo,6 Yukio Noda , 9 Hiroyuki Kagi,5 Daniel I. Khomskii,10 Donghoon Seoung , 11,† and Je-Geun Park2,3,8,12,‡