2020-2022 YAMAGATA UNIVERSITY Research Seeds Collection
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R12R13R23=R23R13R1278Temperature dependence of the permeability of the Ferromag-neticShape Memory Alloys Ni2-xPtxMnGa (x= 0, 0.1, 0.2). TM's (martensitic transition temperature) are increased and TC's (Curie temperature) are decreased with the Pt substitution, x.E-mail:kojima@yz.yamagata-u.ac.jpTel&Fax:0238-26-3376I have been trying to clear the physical property associated with My specialty is the basic experimental study of magnetism, but I Yamagata University Graduate School of Science and Engineering Yamagata University Graduate School of Science and Engineering Research Interest: Infinite Analysis, Mathematical PhysicsResearch InterestInfinite Analysis, Mathematical PhysicsE-mail ・ kojima@yz.yamagata-u.ac.jpTel&Fax ・ +81-238-26-3376ContentContents: I’m interested in exactly solvable models and try to get I‘m interested in exactly solvable models and try to get exact exact formulae of correlation functions. Especially I’m formulae of correlation functions.Especially I’m interested in interested in interplay between exactly solvable model in interplay between exactly solvable modelin field theory or field theory or statistical mechanics, and representation statistical mechanics, and representation theory of infinite theory of infinite dimensional algebra. I study the exactly dimensional algebra. I study the exactly solvable models, which are solvable models, which are described by elliptic functions. described by elliptic functions. The symmetry of these model is he The symmetry of these model is he elliptic quantum group elliptic quantum group $U_{q,p}$. The elliptic quantum group $U_{q,p}$. The elliptic quantum group $U_{q,p}$ is both one $U_{q,p}$ is both one parameter deformation of quantum group parameter deformation of quantum group $U_q$ and two $U_q$ and two parameter deformation of Lie algebra.parameter deformation of Lie algebra.I construct free field realization of vertex operators and boundary state of the elliptic quantum group , and write down exact formulae  I construct free field realization of vertex operators and of correlation functions. When we take the degeneration limit of boundary state of the elliptic quantum group , and write models associated with the elliptic quantum group, we get conformal down exact formulae of correlation functions. When we take field theory and models associated with quantum group .Hence the the degeneration limit of models associated with the elliptic elliptic quantum group is important symmetry.quantum group, we get conformal field theory and models associated with quantum group. Hence the elliptic quantum group is important symmetry.ContentContent:An usual shape memory alloy can transform into the memorized  An usual shape memory alloy can transform into the shape due to the temperature change. A ferromagnetic shape memory memorized shape due to the temperature change. A alloy (FSMA) can transform into the memorized shape due to also ferromagnetic shape memory alloy (FSMA) can transform the magnetic field. The mechanism of transformation is caused by into the memorized shape due to also the magnetic field. The mechanism of transformation is caused by the martensitic the martensitic transition (Mar. Tr.) which is one of the crystalline transition (Mar. Tr.) which is one of the crystalline phase phase transition. The Mar. Tr. involves the change of magnetic transition. The Mar. Tr. involves the change of magnetic property in FSMA. By the using of the effects, magnetic actuators property in FSMA. By the using of the effects, magnetic and magnetic refrigerant materials have been developing. actuators and magnetic refrigerant materials have been I have been studying the basic physical property and the developing.  I have been studying the basic physical property and the mechanism of FSMA to develop the new materials. I perform mechanism of FSMA to develop the new materials. I perform preparing the single or poly-crystalline samples and measuring the preparing the single or poly-crystalline samples and thermal, electric, and magnetic property. I have been collaborating measuring the thermal, electric, and magnetic property. I with IMR, Tohoku Univ. and ISSP, Tokyo Univ. have been collaborating with IMR, Tohoku Univ. and ISSP, Tokyo Univ.  I have been trying to clear the physical property magnetism for the magnetic materials. associated with magnetism for the magnetic materials. Appealing point:Special objectiveswill contribute to the growth of industry-university collaborations.  My specialty is the basic experimental study of magnetism, but I will contribute to the growth of industry-university collaborations. Yamagata UniversityGraduate School of Science and Engineering Research Interest ::Solid State PhysicsYamagata University Graduate School of Science and Engineering (Magnetic Materials)Research InterestE-mail :adachy@yz.yamagata-u.ac.jpSolid State Physics (Magnetic Materials)Tel :+81-238-26-3381Fax:+81-238-26-3381E-mail ・ adachy@yz.yamagata-u.ac.jpTel ・ +81-238-26-3381Fax ・ +81-238-26-3381Study on Exactly Solvable Model by Infinite Dimensional AlgebraStudy on Exactly Solvable Model by Infinite Dimensional AlgebraBasic Studies for the Ferromagnetic Shape Memory AlloysBasic Studies for the Ferromagnetic Shape Memory AlloysAssociate Professor Yoshiya AdachiAssociate Professor YoshiyaAdachiProfessor Takeo KojimaProfessor Takeo KojimaYang-Baxterequation

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