Download or read book Characterization of the Dilute Ising Antiferromagnet Y1 subscript X Tb subscript X Ni2Ge2 and the Search for a Potential Ising Spin Glass written by Timothy Allen Wiener and published by . This book was released on 2000 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the terbium is alloyed with yttrium, these magnetic states are weakened in a consistent manner, as is seen in measurements of the transition temperatures and analysis of Curie-Weiss behavior at high temperature. At low concentrations of terbium, below 35%, long-range order is no longer present and a spin-glass-like state emerges. This state is studied through various measurements, dc and ac susceptibility, resistivity, and specific heat. This magnetic behavior was then compared to that of other well-characterized spin glasses. It is concluded that there is a region of concentrations for which a spin glass state is formed with the best spin glasses existing between the concentrations of 25% and 30%.