Abstract
In this study, we reanalyze the magnetic interactions in the Kitaev spin-liquid candidate materials Na2IrO3,α-RuCl3, and α-Li2IrO3 using nonperturbative exact diagonalization methods. These methods are more appropriate given the relatively itinerant nature of the systems suggested in previous works. We treat all interactions up to third neighbors on equal footing. The computed terms reveal significant long-range coupling, bond anisotropy, and/or off-diagonal couplings which we argue naturally explain the observed ordered phases in these systems. Given these observations, the potential for realizing the spin-liquid state in real materials is analyzed, and synthetic challenges are defined and explained.
| Original language | English |
|---|---|
| Article number | 214431 |
| Journal | Physical Review B |
| Volume | 93 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - Jun 27 2016 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Challenges in design of Kitaev materials : Magnetic interactions from competing energy scales. / Winter, Stephen M.; Li, Ying; Jeschke, Harald Olaf; Valentí, Roser.
In: Physical Review B, Vol. 93, No. 21, 214431, 27.06.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Challenges in design of Kitaev materials
T2 - Magnetic interactions from competing energy scales
AU - Winter, Stephen M.
AU - Li, Ying
AU - Jeschke, Harald Olaf
AU - Valentí, Roser
PY - 2016/6/27
Y1 - 2016/6/27
N2 - In this study, we reanalyze the magnetic interactions in the Kitaev spin-liquid candidate materials Na2IrO3,α-RuCl3, and α-Li2IrO3 using nonperturbative exact diagonalization methods. These methods are more appropriate given the relatively itinerant nature of the systems suggested in previous works. We treat all interactions up to third neighbors on equal footing. The computed terms reveal significant long-range coupling, bond anisotropy, and/or off-diagonal couplings which we argue naturally explain the observed ordered phases in these systems. Given these observations, the potential for realizing the spin-liquid state in real materials is analyzed, and synthetic challenges are defined and explained.
AB - In this study, we reanalyze the magnetic interactions in the Kitaev spin-liquid candidate materials Na2IrO3,α-RuCl3, and α-Li2IrO3 using nonperturbative exact diagonalization methods. These methods are more appropriate given the relatively itinerant nature of the systems suggested in previous works. We treat all interactions up to third neighbors on equal footing. The computed terms reveal significant long-range coupling, bond anisotropy, and/or off-diagonal couplings which we argue naturally explain the observed ordered phases in these systems. Given these observations, the potential for realizing the spin-liquid state in real materials is analyzed, and synthetic challenges are defined and explained.
UR - http://www.scopus.com/inward/record.url?scp=84976463950&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84976463950&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.93.214431
DO - 10.1103/PhysRevB.93.214431
M3 - Article
AN - SCOPUS:84976463950
VL - 93
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 21
M1 - 214431
ER -