@article {Likodimos2007,
	title = {Phase coexistence and magnetic anisotropy in La1-x Cax Mn O3 (0<x<=0.23) studied via electron spin resonance},
	journal = {Physical Review B - Condensed Matter and Materials Physics},
	volume = {76},
	number = {2},
	year = {2007},
	note = {cited By 17},
	abstract = {We report an electron-spin-resonance (ESR) study of stoichiometric La1-x Cax Mn O3 for 0<x<=0.23. The room-temperature ESR linewidth shows a marked decrease with x that is mainly due to the variation of the magnetic susceptibility and a much slower evolution of spin relaxation, associated with the interplay of crystal-field and superexchange interactions. In the canted antiferromagnetic regime, the ESR parameters show initially an x -dependent ferromagnetic (FM) behavior that evolves to antiferromagnetic in the vicinity of TN, reflecting the development of spin canting. A weak ferromagnetic-resonance (FMR) mode is observed below TN that becomes enhanced near the phase boundary to the ferromagnetic insulating (FMI) phase. This mode persists at higher doping levels (x<=0.16) and is attributed to residual FM domains due to the release of crystal strain near the structural transformation at T<100 K. In the FMI regime, FMR measurements show strong uniaxial magnetic anisotropy up to x=0.16 with K= (1-2) {\texttimes} 106 erg cm3 at 100 K. The temperature dependence of the magnetic anisotropy reveals power-law scaling with the magnetization, K (T) M (T)3, indicative of single-ion magnetocrystalline anisotropy and the persistence of orbital order in the FMI state. As the FM metallic phase is approached, the magnetic anisotropy decreases significantly and an additional FMR mode systematically emerges in the paramagnetic regime at T 260 K for x=0.19-0.23. Its relative spectral weight grows with x indicating an increase of the underlying FM fraction that correlates with the enhanced metallic behavior. {\textcopyright} 2007 The American Physical Society.},
	doi = {10.1103/PhysRevB.76.024422},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-34447646517\&doi=10.1103\%2fPhysRevB.76.024422\&partnerID=40\&md5=a83c960366bf4db640b8aec9cc2e48ea},
	author = {V. Likodimos and Pissas, M.}
}
