Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-09-08
J. Phys.: Conf. Ser. 200 (2010) 012123
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 2 figures, proceeding of International Conference on Magnetism 2009
Scientific paper
We have investigated the $R$-site randomness effect of $R$/Ba-ordered $R$BaMn$_{2}$O$_{6}$ ($R$ = rare earth) by using Y$_{1-y}$La$_y$BaMn$_2$O$_6$ (0 (\leq) $y$ (\leq) 1) in which $R$ (Y,La) and Ba are regularly arranged while Y and La randomly occupy the $R$-site. YBaMn$_2$O$_6$ ($y$ = 0) undergoes charge/orbital ordering (CO) transition at $T_{\rm CO}$ = 500 K while LaBaMn$_{2}$O$_{6}$ ($y$ = 1) shows ferromagnetic metallic (FM) behavior below 350 K\@. In 0 (\leq) $y$ (\leq) 0.6, $T_{\rm CO}$ decreases with an increase in $y$. In 0.6 (\leq) $y$ (\leq) 0.8, $R$-site randomness causes strong phase separation tendencies among the FM, antiferromagnetic (AFM), and CO insulating (COI) states. The large magnetoresistance is observed in the phase separated region.
Akahoshi Daisuke
Akaki Mitsuru
Fukushima Shun
Kuwahara Hideki
Miyauchi Yuhei
No associations
LandOfFree
$R$-site Randomness Effect in Double-Perovskite $R$BaMn$_{2}$O$_{6}$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with $R$-site Randomness Effect in Double-Perovskite $R$BaMn$_{2}$O$_{6}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $R$-site Randomness Effect in Double-Perovskite $R$BaMn$_{2}$O$_{6}$ will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-107937