%0 Book Section %1 statphys23_0528 %A Miyashita, S. %A Konishi, Y. %A Nishino, M. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K class crosover elastic interaction phase spin statphys23 topic-2 transition universality %T Study on elastic-interaction-mediated order-disorder phase transition as a new universality class %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=528 %X The type of order-disorder phase transition of local Ising-type variables depends on the range of the interaction. In the case of short-range interaction the universality class has been well understood. The case of dipole-dipole interaction which is a kind of long range has been also studied extensively. Recently, the property of the spin-crossover phase transition has been studied in detail.1,2 In order to explain the nature of cooperative property, models of Ising type variables with interaction have been introduced, and the structure of ordering processes has been well explained. However, the most probable origin of the interaction between the spin states, i.e., the high spin and low spin, is the elastic interaction among distortions of the lattice due to the change of the volume of the molecules.3,4 We study the critical nature of the elastic-interaction-mediated phase transition. There, the positions of spin change continuously and the size of each spin changes between two stable values with different energy and degeneracy. This model shows a kind of order-disorder phase transition, but the critical property is not known and we expect a new type of universality class. We will estimate the critical properties of the model through the temperature and pressure dependences. 5 1) S. Miyashita, Y. Konishi, H. Tokoro, M. Nishino, K. Boukheddaden and F. Varret, Prog. Theor. Phys. 114, 719-735 (2005).\\ 2) Y. Konishi, H. Tokoro, M. Nishino and S. Miyashita, J. Phys. Soc. J. 75, 114603 (2006).\\ 3) M. Nishino, K. Boukheddaden, Y. Konishi, and S. Miyashita, unpublished.\\ 4) Y. Konishi, M. Nishino and S. Miyashita, in preparation.\\ 5) S. Miyashita,Y. Konishi, and M. Nishino, in preparation.

@incollection{statphys23_0528, abstract = {The type of order-disorder phase transition of local Ising-type variables depends on the range of the interaction. In the case of short-range interaction the universality class has been well understood. The case of dipole-dipole interaction which is a kind of long range has been also studied extensively. Recently, the property of the spin-crossover phase transition has been studied in detail.[1,2] In order to explain the nature of cooperative property, models of Ising type variables with interaction have been introduced, and the structure of ordering processes has been well explained. However, the most probable origin of the interaction between the spin states, i.e., the high spin and low spin, is the elastic interaction among distortions of the lattice due to the change of the volume of the molecules.[3,4] We study the critical nature of the elastic-interaction-mediated phase transition. There, the positions of spin change continuously and the size of each spin changes between two stable values with different energy and degeneracy. This model shows a kind of order-disorder phase transition, but the critical property is not known and we expect a new type of universality class. We will estimate the critical properties of the model through the temperature and pressure dependences. [5] 1) S. Miyashita, Y. Konishi, H. Tokoro, M. Nishino, K. Boukheddaden and F. Varret, Prog. Theor. Phys. 114, 719-735 (2005).\\ 2) Y. Konishi, H. Tokoro, M. Nishino and S. Miyashita, J. Phys. Soc. J. 75, 114603 (2006).\\ 3) M. Nishino, K. Boukheddaden, Y. Konishi, and S. Miyashita, unpublished.\\ 4) Y. Konishi, M. Nishino and S. Miyashita, in preparation.\\ 5) S. Miyashita,Y. Konishi, and M. Nishino, in preparation.}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Miyashita, S. and Konishi, Y. and Nishino, M.}, biburl = {https://www.bibsonomy.org/bibtex/2522c7ad68302379ccba2ba0071ed8e64/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {eff1db6fca30e6b068055085a5c581a2}, intrahash = {522c7ad68302379ccba2ba0071ed8e64}, keywords = {class crosover elastic interaction phase spin statphys23 topic-2 transition universality}, month = {9-13 July}, timestamp = {2007-06-20T10:16:22.000+0200}, title = {Study on elastic-interaction-mediated order-disorder phase transition as a new universality class}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=528}, year = 2007 }