Details

Autor(en) / Beteiligte

• Yu, Jie-Xiang
• Chen, Dian-Teng
• Gu, Jie
• Chen, Jia
• Jiang, Jun
• Zhang, Long
• Yu, Yue
• Zhang, Xiao-Guang
• Zapf, Vivien S.
• Cheng, Hai-Ping

Titel

Three Jahn-Teller States of Matter in Spin-Crossover System Mn(taa)

Ist Teil von

• Physical review letters, 2020-06, Vol.124 (22), p.1-227201, Article 227201

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2020

Link zum Volltext

Quelle

American Physical Society

Beschreibungen/Notizen

• Three high-spin phases recently discovered in the spin-crossover system Mn(taa) are identified through analysis by a combination of first-principles calculations and Monte Carlo simulation as a low-temperature Jahn-Teller ordered (solid) phase, an intermediate-temperature dynamically correlated (liquid) phase, and an uncorrelated (gas) phase. In particular, the Jahn-Teller liquid phase arises from competition between mixing with low-spin impurities, which drive the disorder, and intermolecular strain interactions. The latter are a key factor in both the spin-crossover phase transition and the magnetoelectric coupling. Jahn-Teller liquids may exist in other spin-crossover materials and materials that have multiple equivalent Jahn-Teller axes.