Abstract
Using the density-functional-theory-based electronic structure calculations, we study the electronic state of recently discovered mixed-valent manganese oxides AMg4Mn6O15(A=K,Rb,Cs), which are fully spin-polarized ferromagnetic insulators with a cubic crystal structure. We show that the system may be described as a three-dimensional arrangement of the one-dimensional chains of a 2p orbital of O and a 3d orbital of Mn running along the three axes of the cubic lattice. We thereby argue that in the ground state the chains are fully spin polarized due to the double-exchange mechanism and are distorted by the Peierls mechanism to make the system insulating.
| Original language | English |
|---|---|
| Article number | 161103 |
| Journal | Physical Review B |
| Volume | 97 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2018 Apr 5 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Ferromagnetic Peierls insulator state in AMg4Mn6 O15 (A= K,Rb,Cs). / Yamaguchi, T.; Sugimoto, Koudai; Ohta, Y.; Tanaka, Y.; Sato, H.
In: Physical Review B, Vol. 97, No. 16, 161103, 05.04.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ferromagnetic Peierls insulator state in AMg4Mn6 O15 (A= K,Rb,Cs)
AU - Yamaguchi, T.
AU - Sugimoto, Koudai
AU - Ohta, Y.
AU - Tanaka, Y.
AU - Sato, H.
PY - 2018/4/5
Y1 - 2018/4/5
N2 - Using the density-functional-theory-based electronic structure calculations, we study the electronic state of recently discovered mixed-valent manganese oxides AMg4Mn6O15(A=K,Rb,Cs), which are fully spin-polarized ferromagnetic insulators with a cubic crystal structure. We show that the system may be described as a three-dimensional arrangement of the one-dimensional chains of a 2p orbital of O and a 3d orbital of Mn running along the three axes of the cubic lattice. We thereby argue that in the ground state the chains are fully spin polarized due to the double-exchange mechanism and are distorted by the Peierls mechanism to make the system insulating.
AB - Using the density-functional-theory-based electronic structure calculations, we study the electronic state of recently discovered mixed-valent manganese oxides AMg4Mn6O15(A=K,Rb,Cs), which are fully spin-polarized ferromagnetic insulators with a cubic crystal structure. We show that the system may be described as a three-dimensional arrangement of the one-dimensional chains of a 2p orbital of O and a 3d orbital of Mn running along the three axes of the cubic lattice. We thereby argue that in the ground state the chains are fully spin polarized due to the double-exchange mechanism and are distorted by the Peierls mechanism to make the system insulating.
UR - http://www.scopus.com/inward/record.url?scp=85045142237&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045142237&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.97.161103
DO - 10.1103/PhysRevB.97.161103
M3 - Article
AN - SCOPUS:85045142237
VL - 97
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 2469-9950
IS - 16
M1 - 161103
ER -