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Manojlovic, Marko; Pavkov, M.; Škrinjar, M. J.; Pantić, M.; Kapor, D.; Stojanović, S.

doi:10.1103/physrevb.68.014435

Cited by 21 publications

(18 citation statements)

References 10 publications

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“…The intention to thoroughly analyze the influence of in‐plane frustration on the magnetic properties of the system is corroborated by the fact that frustration is strongly pronounced in 2D quantum magnets, [ 17,18 ] though it is often not taken into account. [ 5,6,8 ] Our earlier results [ 19–22 ] also suggest that the model with the NNN interaction gives predictions in better agreement with the experimental data. Besides the aforementioned, the choice of the dominant interactions is supported by the fact that these interactions, especially NN, NNN, and DM interaction, but also spin anisotropy to a lesser extent, show a distinctive pressure dependence, [ 23,24 ] enabling one to affect the phase transition temperature by applying high pressures on the system.…”

Section: Introductionmentioning

confidence: 73%

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La₂CuO₄

Rutonjski

Pantić

Pavkov-Hrvojević

2020

Physica Status Solidi (b)

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The magnetic properties of the 2D anisotropic antiferromagnetic spin-1/2 Heisenberg model with Dzyaloshinskii-Moriya interaction and in-plane frustration are studied. The method of spin Green's functions within the framework of Tyablikov's random-phase-approximation decoupling scheme is used to derive expressions for the spin-wave spectrum, sublattice magnetization, and transition temperature. Based on these expressions, a detailed analysis of the influence of varying values of model parameters on their magnetic properties is conducted. The model is also applied to the high-T c superconducting parent compound La 2 CuO 4 and the results compared with available experimental data.

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Section: Introductionmentioning

confidence: 73%

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La₂CuO₄

Rutonjski

Pantić

Pavkov-Hrvojević

2020

Physica Status Solidi (b)

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“…For this reason, the tetragonal structure was discussed in many papers even when studying undoped LSCO. The validity of this approach was illustrated in [19]. We also deal with the tetragonal structure of LSCO.…”

Section: Temperature Dependence Of Spectral Functionsmentioning

confidence: 99%

“…Therefore, we employ the quasi-two-dimensional Heisenberg model for spin 1/2 in order to describe the spin subsystem and calculate the temperature dependence of the magnon concentration. In [19], it was demonstrated that, in this model, weak in-plane spin anisotropy η has a significant effect on the Néel temperature. Therefore, we also investigate the influence of this parameter on the temperature dependence of n sf .…”

Section: Temperature Dependence Of Spectral Functionsmentioning

confidence: 99%

“…Since coth(x) 1/x as x 0, the critical temperature can be found from Eq. (6) to be Figure 2 shows the temperature dependence of the sublattice magnetization for three different sets of parameters η and λ ⊥ (J = 0.141 eV, λ 2 = λ 3 = 0.0942 [19]). It is seen that the influence of the in-plane anisot- With these values, the magnetization at a zero temperature is S(0) = 0.3119.…”

Section: The Exact Equation Of Motion Formentioning

confidence: 99%

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Temperature evolution of spin-polaron in-gap states in undoped antiferromagnetic cuprates

2008

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-The temperature evolution of in-gap states created by the spin polaron effect and located within the gap with charge transfer between the valence and conduction bands is studied for the case of strong electron correlations using the t -t '-t ''-J model of antiferromagnetic undoped cuprates. The effect of temperature is taken into account by temperature renormalization of the magnon concentration, which is calculated using the Heisenberg model with inclusion of weak interlayer exchange and weak in-plane spin anisotropy, and by introducing a Lorentzian with a temperature-dependent half-width in the form corresponding to the marginal Fermi liquid model. With increasing temperature, the spectral weight of the in-gap state, which is proportional to the magnon concentration, grows leading to an increased intensity of the corresponding peak of the spectral function in all points of the Brillouin zone. At points ( π /2, π /2) and ( π , 0), the main peak is approached by the satellite peak related to the in-gap band and, at points (0, 0) and ( π , π ), the peaks move away from each other.

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“…In the last time interest for magnetic problems increases, [21][22][23][24][25][26][27][28][29][30] but nowhere the problem of broken symmetry structures is not in the first plan.…”

Section: Behaviour Of Thin Magnetic Films At Low Temperaturesmentioning

confidence: 99%

Behaviour of Thin Magnetic Films at Low Temperatures

Sajfert¹,

Popov²,

Mašković³

et al. 2009

Jnl of Comp & Theo Nano

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The problem of the analysis of low temperature magnetization is exposed in detail. The application of exact Bose representation of spin operators to the bulk ferromagnets is justified. By means of this representation the magnetization of ultrathin films was analysed. It turned out that thin films magnetization contains exponentially small terms characterized by Dyson's functions even in harmonical approximation. The main conclusions of this work are that magnetic lattice of thin film is more rigid than the macroscopic lattice and that the autoreduction process (the three layer film divides onto three two layer subfilms) takes place in the film.

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Spin-wave dispersion and transition temperature in the cuprate antiferromagnetLa2CuO4

Cited by 21 publications

References 10 publications

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La₂CuO₄

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La₂CuO₄

Temperature evolution of spin-polaron in-gap states in undoped antiferromagnetic cuprates

Behaviour of Thin Magnetic Films at Low Temperatures

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Spin-wave dispersion and transition temperature in the cuprate antiferromagnetLa2CuO4

Cited by 21 publications

References 10 publications

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La2CuO4

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La2CuO4

Temperature evolution of spin-polaron in-gap states in undoped antiferromagnetic cuprates

Behaviour of Thin Magnetic Films at Low Temperatures

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Product

Resources

About

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La₂CuO₄

Effects of Frustration and Dzyaloshinskii–Moriya Interaction on the Spin‐1/2 Anisotropic Heisenberg Antiferromagnet with the Application to La₂CuO₄