The low-temperature properties of the spin-one Heisenberg antiferromagnetic chain with the single-ion anisotropy

Chen, Yuan; Wu, You

doi:10.1016/j.ssc.2013.01.016

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…Therefore, it would be interesting to extend the present investigation to the corresponding Heisenberg systems and study the effects of the spin value and the single-ion anisotropy. These effects can partially suppress quantum fluctuations [45] and, consequently, also the appearance of the zero-magnetization plateau. Thus, in the proper setting it might be possible to restore the enhanced MCE even in such Heisenberg systems, at least in the highly anisotropic (semi-classical Ising) limit.…”

Section: Discussionmentioning

confidence: 99%

Effect of Single-Ion Anisotropy on Magnetocaloric Properties of Frustrated Spin-s Ising Nanoclusters

Mohylna

Žukovič

2020

Magnetochemistry

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Effects of a single-ion anisotropy on magnetocaloric properties of selected spin-s≥1 antiferromagnetic Ising clusters with frustration-inducing triangular geometry are studied by exact enumeration. It is found that inclusion of the single-ion anisotropy parameter D can result in a much more complex ground-state behavior, which is also reflected in a magnetocaloric effect (MCE) at finite temperatures. For negative D (easy-plane anisotropy) with increasing s, the ground-state magnetization as a function of the external field gradually shows increasing number of plateaus of various heights. Except for the cases of integer s with D<D0≤0, the first magnetization plateau is of non-zero height. This property facilitates an enhanced MCE in the adiabatic demagnetization process in the form of an abrupt decrease in temperature as the magnetic field vanishes to zero. The cooling rate can be considerably enhanced in the systems with larger s and D>0 (easy-axis anisotropy), albeit its dependence on these parameters is strongly dependent on the cluster geometry. From the studied systems more favorable conditions for observing a giant MCE were found in the 2CS cluster, consisting of two corner-sharing tetrahedra, the experimental realization of which could be technologically used for efficient refrigeration to ultra-low temperatures.

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Section: Discussionmentioning

confidence: 99%

Effect of Single-Ion Anisotropy on Magnetocaloric Properties of Frustrated Spin-s Ising Nanoclusters

Mohylna

Žukovič

2020

Magnetochemistry

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“…In this work, we specifically follow a slightly simple approach introduced in Refs. [38,39], as it is shown good applicability for a wide range of temperature for S = 1∕2.…”

Section: Modified Spin Wave Methodsmentioning

confidence: 97%

“…Following Takahashi [5] and Refs. [38,39], we introduce a Lagrange constraint into the Hamiltonian, H = ∑ i∈A,B l S z i . The Lagrange multipliers are assumed as i = if i ∈ A and − if i ∈ B , and is redefined as ≡ S(Jz + K)( − 1) for convenience.…”

Section: Modified Spin Wave Methodsmentioning

confidence: 99%

Thermodynamic Behavior of Spin-1 Heisenberg Chain: a Comparative Study

Faridfar

Vahedi

2021

J Supercond Nov Magn

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In this work, we present a comparative study of thermodynamic quantum equilibrium observables of spin-1 Heisenberg chain. As a theoretical approach, the modified spin-wave theory is chosen. From the numerical side, we consider finite-temperature Lanczos, kernel polynomial, and density matrix renormalization techniques. The results show general consistency of thermodynamic quantities, such as heat capacity and magnetic susceptibility, calculated within the approaches. For the modified spin-wave, the results show some inaccuracy especially at low temperature, failure in capturing the gapped features of spin-1 Heisenberg chain, while the numerical approaches illustrate a good achievement at $$T\rightarrow 0$$ T → 0 within the proper parameters chosen.

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The magnetic properties of the spin-1 Heisenberg antiferromagnetic chain with single-ion anisotropy

Hu¹,

Zhu²

2015

Physica B: Condensed Matter

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The low-temperature properties of the spin-one Heisenberg antiferromagnetic chain with the single-ion anisotropy

Cited by 5 publications

References 36 publications

Effect of Single-Ion Anisotropy on Magnetocaloric Properties of Frustrated Spin-s Ising Nanoclusters

Effect of Single-Ion Anisotropy on Magnetocaloric Properties of Frustrated Spin-s Ising Nanoclusters

Thermodynamic Behavior of Spin-1 Heisenberg Chain: a Comparative Study

The magnetic properties of the spin-1 Heisenberg antiferromagnetic chain with single-ion anisotropy

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