Thermal Effects and Competition Between Magnetic Phases in Some Spin Glass Aufe Alloys

According to use of nano (10-9) dimensions in modern experimental techniques, thermal transition investigations carried out on AuFe spin glass alloys, with concentration range (0.1% - 15% per magnetic impurity), and thermal spectrum (0.01- 300 k). Because there is no one source that can give all exact experimental information, we got data from many resources (resistivity, specific heat, susceptibility, mossbauer effect, neutron scattering, magnetization and hysteresis cycles, NMR, SR ),and obtain a new experimental thermal magnetic phase diagram . A conflict with theoretical studies has been found. (Key Words: Spin glass, Thermal, Magnetic, Phase Diagram) PACS: 75:10, 75:30, 75:40, 75:50.