Abstract
We present electron spin resonance (ESR) measurements in single-crystalline samples of EuInAs grown using the In-flux method. This compound crystallizes in a hexagonal P6(3)/ structure and presents antiferromagnetic (AFM) ordering below K. In the paramagnetic state, a single Eu Dysonian ESR line with nearly temperature-independent -factor and linewidth is observed, indicating the absence of Korringa-like relaxation of the Eu ions. Approaching the AFM transition, we observe an anisotropic -shift and a linewidth broadening which has a maximum at , suggesting that the short-range AFM correlation dominates the spin dynamics of the Eu spins in this temperature range. Our results are discussed based on complementary data (magnetic susceptibility, heat capacity, and electrical resistivity measurements) that provide further details about the global macroscopic physical properties of the EuInAs intermetallic compound.
- Received 4 July 2012
DOI:https://doi.org/10.1103/PhysRevB.86.094408
©2012 American Physical Society