Abstract
Extensive Monte-Carlo simulations are performed to analyze a recent neutron-diffraction experiment on a distorted triangular lattice compound RbCoBr3. We consider a spin-lattice model where both spin and lattice are Ising variables. This model explains well successive magnetic and dielectric transitions observed in the experiment. The exchange interaction parameters and the spin-lattice coupling are estimated. It is found that the spin-lattice coupling is important to explain the slow growth of a ferrimagnetic order. The present simulations were made possible by developing a modified Monte-Carlo algorithm, which accelerates slow Monte-Carlo dynamics of quasi-one-dimensional frustrated systems.
| Original language | English |
|---|---|
| Article number | 104422 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 78 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2008 Sep 26 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Spin-lattice model of magnetoelectric transitions in RbCoBr3. / Nakamura, Tota; Nishiwaki, Yoichi.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 10, 104422, 26.09.2008.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Spin-lattice model of magnetoelectric transitions in RbCoBr3
AU - Nakamura, Tota
AU - Nishiwaki, Yoichi
PY - 2008/9/26
Y1 - 2008/9/26
N2 - Extensive Monte-Carlo simulations are performed to analyze a recent neutron-diffraction experiment on a distorted triangular lattice compound RbCoBr3. We consider a spin-lattice model where both spin and lattice are Ising variables. This model explains well successive magnetic and dielectric transitions observed in the experiment. The exchange interaction parameters and the spin-lattice coupling are estimated. It is found that the spin-lattice coupling is important to explain the slow growth of a ferrimagnetic order. The present simulations were made possible by developing a modified Monte-Carlo algorithm, which accelerates slow Monte-Carlo dynamics of quasi-one-dimensional frustrated systems.
AB - Extensive Monte-Carlo simulations are performed to analyze a recent neutron-diffraction experiment on a distorted triangular lattice compound RbCoBr3. We consider a spin-lattice model where both spin and lattice are Ising variables. This model explains well successive magnetic and dielectric transitions observed in the experiment. The exchange interaction parameters and the spin-lattice coupling are estimated. It is found that the spin-lattice coupling is important to explain the slow growth of a ferrimagnetic order. The present simulations were made possible by developing a modified Monte-Carlo algorithm, which accelerates slow Monte-Carlo dynamics of quasi-one-dimensional frustrated systems.
UR - http://www.scopus.com/inward/record.url?scp=53849143285&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=53849143285&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.78.104422
DO - 10.1103/PhysRevB.78.104422
M3 - Article
AN - SCOPUS:53849143285
VL - 78
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 10
M1 - 104422
ER -