Calorimetric investigation of a spin-glass alloy:<i>Cu</i>Mn

Wenger, L. E.; Keesom, P. H.

doi:10.1103/physrevb.13.4053

Cited by 202 publications

(46 citation statements)

References 42 publications

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“…The specific heat, however, rather than showing a similar singularity, typically displays a broad maximum ( Fig. 3) at temperatures somewhat higher than the "freezing temperature" T f defined via the susceptibility peak (see, e.g., [8]). …”

Section: Introductionmentioning

confidence: 99%

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Ordering and broken symmetry in short-ranged spin glasses

Newman

Stein

2003

J. Phys.: Condens. Matter

185

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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 introduce the notion of thermodynamic chaos, which leads to the metastate construct. We apply these tools to short-ranged spin glasses, and conclude that replica symmetry breaking, in any form, cannot describe the low-temperature spin glass phase in any finite dimension. We then discuss the remaining possible scenarios that could describe the low-temperature phase, and the differences they exhibit in some of their physical properties -in particular, the interfaces that separate them. We also present rigorous results on metastable states and discuss their connection to thermodynamic states. Finally, we discuss some of the differences between the statistical mechanics of homogeneous systems and those with quenched disorder and frustration.

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Section: Introductionmentioning

confidence: 99%

“…The arrow indicates the freezing temperature T f as discussed in the text. From Wenger and Keesom [8].…”

Section: Introductionmentioning

confidence: 99%

Ordering and broken symmetry in short-ranged spin glasses

Newman

Stein

2003

J. Phys.: Condens. Matter

185

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“…The variation is continuous through the spin glass temperature. Both experiments can be criticized for being too coarse either in K or in temperature, and indeed significant features in X(K)T were missed until the work of Werner and Cable (1981) was reported on CuMn single crystals. Fig.…”

Section: Spatial Correlations In Spin Glassesmentioning

confidence: 99%

“…% CuMn, most of the first Brillouin zone has been scanned for X(K)T (Davis and Hicks 1979;Werner and Cable 1981) and its temperature dependence for all K appears to be continuous through the spin glass temperature.…”

Section: Spatial Correlations In Spin Glassesmentioning

confidence: 99%

Spin Glasses in Transition?

Hicks¹

1983

Aust. J. Phys.

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Spin glasses have variously been described as apparently frozen but very slowly relaxing spin systems, and also as magnetic phases below a second order transition. The structural and dynamic properties of metallic spin glasses are surveyed with emphasis on neutron scattering and low field magnetic measurements. Spin glass regions in phases with magnetic long range order are included, and an attempt is made to assess spin glass theories with respect to the various transitions.

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“…In many cases, the entropy associated with the peak is about 70% of the expected value, e.g., 70% of Rln2 for a doublet ground state such as is normally found in Ce systems [50,51]. This indicates the presence of correlated spins at temperature high above Tf.…”

Section: Resultsmentioning

confidence: 87%

Searching for heavy fermion materials in Ce intermetallic compounds

Tang

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Calorimetric investigation of a spin-glass alloy:CuMn

Cited by 202 publications

References 42 publications

Ordering and broken symmetry in short-ranged spin glasses

Ordering and broken symmetry in short-ranged spin glasses

Spin Glasses in Transition?

Searching for heavy fermion materials in Ce intermetallic compounds

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