Raman and magnetic susceptibility studies of hexagonal elpasolite Cs₂NaAlF₆:Cr³⁺

TY - JOUR

T1 - Raman and magnetic susceptibility studies of hexagonal elpasolite Cs2NaAlF6:Cr3+

AU - Sosman, L. P.

AU - Yokaichiya, F.

AU - Bordallo, H. N.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Polarized Raman scattering spectra of distorted R over(3 m, -) elpasolites Cs2NaAlF6 with a Cr3+ content of 0.1, 0.5 and 3.0 at% have been studied at both room temperature and 16 K. A shoulder located near the very intense band assigned to the AlF63- A1g mode indicates that the guest ion causes only small perturbations to the host lattice. Magnetic susceptibility measurements performed on the 0.1, 0.5, 3, 10 and 50 at% samples show that for particular concentrations the Cr3+ ions are not isolated, but participate to inter and/or intra-cluster magnetic exchange.

AB - Polarized Raman scattering spectra of distorted R over(3 m, -) elpasolites Cs2NaAlF6 with a Cr3+ content of 0.1, 0.5 and 3.0 at% have been studied at both room temperature and 16 K. A shoulder located near the very intense band assigned to the AlF63- A1g mode indicates that the guest ion causes only small perturbations to the host lattice. Magnetic susceptibility measurements performed on the 0.1, 0.5, 3, 10 and 50 at% samples show that for particular concentrations the Cr3+ ions are not isolated, but participate to inter and/or intra-cluster magnetic exchange.

KW - Chromium doping

KW - Elpasolite

KW - Magnetic correlation

KW - Polarized Raman

UR - http://www.scopus.com/inward/record.url?scp=65349106448&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2009.01.026

DO - 10.1016/j.jmmm.2009.01.026

M3 - Journal article

AN - SCOPUS:65349106448

SN - 0304-8853

VL - 321

SP - 2210

EP - 2215

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 14

ER -