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Öğe Degenerate magnetic structures and antiferromagnetic phase transitions in \gamma-Mn alloys(Turkish Journal of Physics, 1996) Bayrı, Ali; Atalay, Funda Ersoy; Gencer, HüseyinAbstract: Manganese alloy systems, which have been studied experimentally, show a host of antiferromagnetic phase transitions. Developing a linearized theory for the clas¬sical Heisenberg model, we can solve the local distortion of model of spins around an impurity in non-collinear antiferromagnet. Since the alloying removes the degeneracy in non-collinear magnets, this theory is useful. Looking at the case of ?-Mn alloys, especially Mn3Pt, we can predict the experimentally observed phase transitions caused by alloying.Öğe Frustrated antiferromagnetism with multiple-Q structure(1999) Bayrı, Ali; Ekmekçi, Servet; Gencer, HüseyinFrustrated antiferromagnetism with multiple-Q structureÖğe İnce film manganitlerde colossal manyetodirenç ve manyetoempedans etki(2007) Atalay, Selçuk; Mutlu, H. İbrahim; Atalay, Funda; Gencer, Hüseyin; Göktaş, Abdullah; Güneş, Murat; Kolat, V. Serkan[Abstract Not Available]Öğe LaFeSi ve katkılanmış LaFeSi malzemelerinde manyetokalorik etki(2009) Atalay, Selçuk; Gencer, Hüseyin; Kolat, Serkan Veli; İzgi, Tekin; Kaya, Onur Ali[Abstract Not Available]Öğe Magnetic diffuse scattering in the frustrated square lattice(Turkish Journal of Physics, 1998) Bayrı, Ali; Atalay, Funda Ersoy; Gencer, HüseyinÖz: Başlık (İngilizce): Öz (İngilizce): Some of the first transition metal alloys show first order antiferromagnetic phase transition as a function of alloy concentration [1-5]. The antiferromagnetism of materials can be classified into three different class: type I, type II and type III. Although the neutron diffraction studies give information about the type of magnetism, they do not show the fluctuations of magnetic moment from the original direction. So in order to have some information about this fluctuations one must perform the magnetic diffuse scattering. Recently, we proposed that the square lattice may have a double-Q structure as well as single-Q [6]. We showed that the alloying may cause a first order antiferromagnetic phase transition. In order to show that this is the case we perform the magnetic diffuse scattering and give more evidences that the alloying play the dominant role in this phase transition.Öğe Magnonik kristaller(2015) Atalay, Selçuk; Yurtcan, Mustafa Tolga; Kaya, Olgun Adem; Gencer, Hüseyin; Kaya, Ali Onur; Soykan, Ümmü Gülsüm[Abstract Not Available]Öğe The role of clustering for antiferromagnetic phase transitions in \gamma-Mn alloys(Turkish Journal of Physics, 1996) Gencer, Hüseyin; Bayrı, Ali; Atalay, Funda ErsoyThe role of clustering for antiferromagnetic phase transitions in ?-Mn alloys
