The analytical treatment of magnetic properties of three-layer ferrimagnetic superlattice

Pantić, M.; Škrinjar, M. J.; Kapor, D.

doi:10.1016/j.physa.2008.06.022

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…Now that the renormalized magnon spectrum is determined, including effects of frustration, we can examine its influence on thermodynamics of spin 1 2 bcc lattice J 1 − J 2 Heisenberg antiferromagnet. We have to bear in mind, however, that for correct calculation of thermodynamic properties in RPA, one must take the full set of the poles of Green's functions from single system of equations [33]. These are {E(k), −E(k)} in the Néel phase and {E 1 (k), −E 1 (k), E 2 (k), −E 2 (k)} in the stripe phase.…”

Section: Af2 (Stripe) Phasementioning

confidence: 99%

Phase diagram of spin-12 quantum Heisenberg J
Pantić
¹
,
Kapor
²
,
Radošević
³

et al. 2014
Solid State Communications
28
2
20
0
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Magnetic properties of spin 1 2 J 1 − J 2 Heisenberg antiferromagnet on body centered cubic lattice are investigated. By using twotime temperature Green's functions, sublattice magnetization and critical temperature depending on the frustration ratio p = J 2 /J 1 are obtained in both stripe and Néel phase. The analysis of ground state sublattice magnetization and phase diagram indicates the critical end point at J 2 /J 1 = 0.714, in agreement with previous studies.

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Section: Af2 (Stripe) Phasementioning

confidence: 99%

Phase diagram of spin-12 quantum Heisenberg J
Pantić
¹
,
Kapor
²
,
Radošević
³

et al. 2014
Solid State Communications
28
2
20
0
View full text Add to dashboard Cite

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“…Since LaOFeAs is antiferromagnetically ordered, in order to determine the spin-wave spectrum, we first introduce the local coordinate system on the sublattice B. This is achieved through the unitary transformation of the spin operators on each site of the sublattice B [48], i.e. performing in the spin space the rotation around x-axis by  .…”

Section: Model Hamiltonian Green's Function Determination and Main Resultsmentioning

confidence: 99%

Anisotropy Influence on the Striped Antiferromagnetism of a Frustrated Heisenberg Model: An Application to Iron Pnictide Materials

Pantić

Rutonjski

Mali

et al. 2016

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Motivated by several experimental studies of magnetic compounds related to iron pnictides, we examine thermodynamic properties of anisotropic J1a - J1b - Jc - J2 Heisenberg antiferromagnetic model. Our calculations are based on the two-time temperature Green's functions within several well-known decoupling approximations. We obtain excitation spectrum, correlation functions and the analytic expression for the critical temperature and compare our results to the existing experimental data. Results presented here could be of a great importance in the further investigations of similar magnetic systems.

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“…Next nearest neighbors are labeled as with its corresponding integral . Exchange integral of spins between layers in bilayer is denoted by and interaction between different bilayers is [18,19]. Interactions between layers and bilayers are taken to be a lot weaker than the other ones.…”

Section: Figure 2 Magnetic Unit Cell Of a Bilayer Used To Model 122-t...mentioning

confidence: 99%

TRANSITION TEMPERATURE DEPENDENCE ON ANISOTROPY IN THE Ј1-Ј2-Јc-Јp HEISENBERG MODEL WITH APPLICATION TO 122-TYPE OF IRON PNICTIDES

Adamović

Pantić

2022

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Recently there has been a considerable interest in studying iron-based superconductors called pnictides. The aim of this paper is to give a contribution to better understanding of magnetic properties of the 122 class of iron pnictides. We use anisotropic J1-J2-Jc-Jp Heisenberg model. The method of spin Green’s functions in the Tyablikov’s random phase approximation (RPA) decoupling scheme is used to determine the transition temperature. Based on the obtained expression for the transition temperature, we study its dependence on the spin anisotropy. Furthermore, we compare our model results with the experimentally available data for the transition temperature. In addition, we test our model predictions of the transition temperature using the exchange interaction values from other articles. Results presented here should give additional contribution to understanding the magnetic properties of the 122 class of iron-based superconductors.

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The analytical treatment of magnetic properties of three-layer ferrimagnetic superlattice

Cited by 4 publications

References 21 publications

Phase diagram of spin-12 quantum Heisenberg J
Pantić
¹
,
Kapor
²
,
Radošević
³

et al. 2014
Solid State Communications
28
2
20
0
View full text Add to dashboard Cite

Phase diagram of spin-12 quantum Heisenberg J
Pantić
¹
,
Kapor
²
,
Radošević
³

et al. 2014
Solid State Communications
28
2
20
0
View full text Add to dashboard Cite

Anisotropy Influence on the Striped Antiferromagnetism of a Frustrated Heisenberg Model: An Application to Iron Pnictide Materials

TRANSITION TEMPERATURE DEPENDENCE ON ANISOTROPY IN THE Ј1-Ј2-Јc-Јp HEISENBERG MODEL WITH APPLICATION TO 122-TYPE OF IRON PNICTIDES

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The analytical treatment of magnetic properties of three-layer ferrimagnetic superlattice

Cited by 4 publications

References 21 publications

Phase diagram of spin-12 quantum Heisenberg JPantić1, Kapor2, Radošević3 et al. 2014Solid State Communications282200View full textAdd to dashboardCite

Phase diagram of spin-12 quantum Heisenberg JPantić1, Kapor2, Radošević3 et al. 2014Solid State Communications282200View full textAdd to dashboardCite

Anisotropy Influence on the Striped Antiferromagnetism of a Frustrated Heisenberg Model: An Application to Iron Pnictide Materials

TRANSITION TEMPERATURE DEPENDENCE ON ANISOTROPY IN THE Ј1-Ј2-Јc-Јp HEISENBERG MODEL WITH APPLICATION TO 122-TYPE OF IRON PNICTIDES

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Product

Resources

About

Phase diagram of spin-12 quantum Heisenberg J
Pantić
¹
,
Kapor
²
,
Radošević
³

et al. 2014
Solid State Communications
28
2
20
0
View full text Add to dashboard Cite

Phase diagram of spin-12 quantum Heisenberg J
Pantić
¹
,
Kapor
²
,
Radošević
³

et al. 2014
Solid State Communications
28
2
20
0
View full text Add to dashboard Cite