Spin Chains with Highly Quantum Character through Strong Covalency in Ca3CrN3

• Published in: Journal of the American Chemical Society Vol. 147; no. 4; pp. 3092 - 3101
• Main Authors: Kautzsch, Linus, Georgescu, Alexandru B., Yuan, Lin-Ding, Taddei, Keith M., Reilly, Aiden, Seshadri, Ram, Rondinelli, James M., Wilson, Stephen D.
• Format: Journal Article
• Language: English
• Published: American Chemical Society 29.01.2025

The insulating transition metal nitride Ca3CrN3 consists of sheets of triangular [CrN3]6– units with C 2v symmetry that are connected via quasi-1D zigzag chains. Due to strong covalency between Cr and N, Cr3+ ions are unusually low-spin, and S = 1/2. Magnetic susceptibility measurements reveal domin...