2005/11/30 by O. Waldmann, C. Dobe, Christopher Dobe +5 · 1 citation
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Coupling (piping) #Electron Spin Resonance Studies #Field (mathematics) #Intermolecular force #Magnetic field #Magnetism in coordination complexes #Materials science #Molecule #Organic and Molecular Conductors Research #Phase (matter) #Physics #Quantum mechanics #Thermodynamics #Torque #cond-mat.other
paper · pdf · doi:10.1103/physrevlett.96.027206
published as Phys. Rev. Lett. 96, 027206 (2006) · 4 pages, 3 figures, REVTEX4, to appear in PRL
arxiv created 2005/11/30 · openalex publication_date 2006/01/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The magnetic torque of the antiferromagnetic molecular wheel CsFe8 was studied down to 50 mK and up to 28 T. Below about 0.5 K phase transitions were observed at the field-induced level crossings (LCs). Intermolecular magnetic interactions are very weak excluding field-induced magnetic ordering. A magnetoelastic coupling was considered. A generic model shows that the wheel structure is unconditionally unstable at the LCs, and the predicted torque curves explain the essential features of the data well.