Magnetic Excitations of the 2-D Sm Spin Layers in Sm(La,Sr)CuO4
F. Ronning, C. Capan, N.O. Moreno, J.D. Thompson, L.N. Bulaevskii, R., Movshovich, D. van der Marel
TL;DR
This study investigates the magnetic properties of Sm(La,Sr)CuO4, revealing potential realization of a frustrated Heisenberg antiferromagnet on a square lattice through specific heat and susceptibility measurements at very low temperatures.
Contribution
The paper provides experimental evidence of magnetic behavior in Sm(La,Sr)CuO4 consistent with a frustrated 2D Heisenberg antiferromagnet, highlighting its potential as a model system.
Findings
Broad specific heat peak at 1.5 K insensitive to magnetic field
Susceptibility increases down to 2 K, indicating persistent magnetic fluctuations
Suggests realization of a frustrated 2D antiferromagnetic system
Abstract
We present specific heat and susceptibility data on Sm(La,Sr)CuO4 in magnetic fields up to 9 T and temperatures down to 100 mK. We find a broad peak in specific heat which is insensitive to magnetic field at a temperature of 1.5 K with a value of 2.65 J/mol K. The magnetic susceptibility at 5 T continues to increase down to 2 K, the lowest temperature measured. The data suggest that the Sm spin system may be an ideal realization of the frustrated Heisenberg antiferromagnet on the square lattice.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.