Bibliographic Details
| Title: |
Reduction of critical field for magnetic and orbital-ordering phase transition in impurity-substituted Nd$_{0.45}$Sr$_{0.55}$MnO$_3$ crystal |
| Authors: |
Izuchi, Y., Akaki, M., Akahoshi, D., Kuwahara, H. |
| Source: |
APL Materials 2, 022106 (2014) |
| Publication Year: |
2014 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Strongly Correlated Electrons |
| More Details: |
We have investigated the Mn-site substitution effect in Nd$_{0.45}$Sr$_{0.55}$MnO$_3$ single crystal, which has an $A$-type layered antiferromagnetic ($A$-AFM) phase with the 3$d_{x^2-y^2}$-type orbital-order. Substitution of Fe or Ga for Mn-site suppresses both the $A$-AFM order and competing ferromagnetic (FM) correlation whereas Cr substitution suppresses only the $A$-AFM order but reactivates the underlying FM correlation via double-exchange mechanism along the AFM coupled $c$-direction. In Nd$_{0.45}$Sr$_{0.55}$Mn$_{0.95}$Cr$_{0.05}$O$_3$, the $A$-AFM state with the orbital-order is changed into the orbital-disordered three-dimensional FM metallic state by applying magnetic field of $\mu_0 H = 12$ T, which is much smaller than that of the parent compound Nd$_{0.45}$Sr$_{0.55}$MnO$_3$.
Comment: 5 pages, 4 figures, to appear in APL Materials |
| Document Type: |
Working Paper |
| DOI: |
10.1063/1.4866050 |
| Access URL: |
http://arxiv.org/abs/1402.1543 |
| Accession Number: |
edsarx.1402.1543 |
| Database: |
arXiv |
