New approach to critical dynamic scaling in random magnets

Geschwind, S.; Huse, David A.; Devlin, G. E.

doi:10.1103/physrevb.41.4854

Cited by 51 publications

(41 citation statements)

References 18 publications

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“…However, a reanalysis of these results yielded at least as good fit with 7 = 4.4 and 0 -0.6 using a lower value for the spin glass temperature (T g -12.14 K). 11 The lower value of {3 thus obtained is supported by later experimental work on the Cdi-^Mn^Te system. In Ref.…”

Section: Resultssupporting

confidence: 68%

“…5 In Ref. [11], a different approach to dynamic scaling was suggested. In this procedure the argument of the scaling function in Eq.…”

Section: Resultsmentioning

confidence: 99%

“…x' = Xo + 3x2# 2 + 5x4-ff 4 + .- (11) which makes it possible to define the non-linear ac susceptibility as x' n i -Xo -x' ■ Of course, in order for x'ni *° yield the correct critical behaviour, a necessary condition is that the measurements are performed in the static limit, i.e. that x" -0.…”

Section: Resultsmentioning

confidence: 99%

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Experiments on Spin Glasses

Nordblad

Svedlindh

1997

Series on Directions in Condensed Matter Physics

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Static and dynamic scaling of the susceptibility of 3d spin glasses is found to yield consistent results and imply that there is a zero field phase transition at a finite temperature. On the other hand, dynamic scaling analysis of the in-field behaviour suggests that there is no phase transition in an applied magnetic field. The ageing phenomenon in spin glasses as observed in the response function and the field cooled magnetisation is discussed and a phenomenological picture for how it relates to the underlying spin configuration is derived.

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Section: Resultssupporting

confidence: 68%

“…5 In Ref. [11], a different approach to dynamic scaling was suggested. In this procedure the argument of the scaling function in Eq.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Experiments on Spin Glasses

Nordblad

Svedlindh

1997

Series on Directions in Condensed Matter Physics

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“…(This scaling rule is intrinsically invalid when H becomes too large 44) ). For historical reasons non-linear magnetization data have generally been analysed using 51,52,53) …”

Section: Spin Glass Ordering and Critical Exponentsmentioning

confidence: 99%

Heisenberg Spin Glass Experiments and the Chiral Ordering Scenario

Campbell

Petit

2010

J. Phys. Soc. Jpn.

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An overview is given of experimental data on Heisenberg Spin Glass materials so as to make detailed comparisons with numerical results on model Heisenberg spin glasses, with particular reference to the chiral driven ordering transition scenario due to Kawamura and collaborators. On weak anisotropy systems, experiments show critical exponents which are very similar to those estimated numerically for the model Heisenberg chiral ordering transition but which are quite different from those at Ising spin glass transitions. Again on weak anisotropy Heisenberg spin glasses, experimental torque data show well defined in-field transverse ordering transitions up to strong applied fields, in contrast to Ising spin glasses where fields destroy ordering. When samples with stronger anisotropies are studied, critical and in-field behavior tend progressively towards the Ising limit. It can be concluded that the essential physics of laboratory Heisenberg spin glasses mirrors that of model Heisenberg spin glasses, where chiral ordering has been demonstrated numerically.

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“…Both studied crystals exhibit typical dynamical features of spin glasses. Among them the most important is the following dynamic scaling equation [5,6]:…”

Section: Methodsmentioning

confidence: 99%

Spin-Glass Transition in the RCoGaO_{4} (R=Lu, Yb) Layered Cobaltites

et al. 2014

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The frequency, temperature, and the dc and ac dependences of the magnetic susceptibility of the YbCoGaO4 and LuCoGaO4 single crystals are investigated. The YbCoGaO4 behaves like an Ising spin glass with a strong uniaxial anisotropy. In contrast LuCoGaO4 is Heisenberg -like spin glass. Dynamical scaling reveals a three dimensional phase transition near Tg and yields critical exponent values between those of Heisenberg -andIsing-like systems.

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New approach to critical dynamic scaling in random magnets

Cited by 51 publications

References 18 publications

Experiments on Spin Glasses

Experiments on Spin Glasses

Heisenberg Spin Glass Experiments and the Chiral Ordering Scenario

Spin-Glass Transition in the RCoGaO_{4} (R=Lu, Yb) Layered Cobaltites

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