The ordering ofXYspin glasses

Transverse ordering in anisotropic spin glasses.

The low-field susceptibility along the easy axis of the spin glass Fe2Ti05 exhibits a sharp cusp at Tg = 48 K, whereas the susceptibility in transverse directions exhibits a broad maximum around 6 K. In all directions irreversibility appears already. below Tz. Transverse irreversibility, however, is weaker by an order of magnitude than the longitudinal one. This behavior is discussed in terms o...

Ordering Temperatures and Critical Exponents in Ising Spin Glasses.

We propose a numerical criterion which can be used to obtain accurate and reliable values of the ordering temperatures and critical exponents of spin glasses. Using this method we find a value of the ordering temperature for the ±J Ising spin glass in three dimensions which is definitely non-zero and in good agreement with previous estimates. We show that the critical exponents of three dimensi...

Ordering and dimensional crossovers in metallic glasses and liquids

David Z. Chen,1,* Qi An,2 William A. Goddard III,2 and Julia R. Greer1,3 1Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, California, 91125, USA 2Materials and Process Simulation Center, California Institute of Technology, Pasadena, California, 91125, USA 3The Kavli Nanoscience Institute, California Institute of Technology, Pasadena, California, 91125...

Ordering and Broken Symmetry in Short-Ranged Spin Glasses

In this topical review we discuss the nature of the low-temperature phase in both infiniteranged and short-ranged spin glasses. We analyze the meaning of pure states in spin glasses, and distinguish between physical, or “observable”, states and (probably) unphysical, “invisible” states. We review replica symmetry breaking, and describe what it would mean in shortranged spin glasses. We introduc...

Icosahedral ordering in supercooled liquids and metallic glasses