Magnetic properties of Kekulene structure: A Monte Carlo study

被引:43
作者
Jabar, A. [1 ]
Masrour, R. [1 ]
机构
[1] Cady Ayyed Univ, Natl Sch Appl Sci, Lab Mat Proc Environm & Qual, Safi 6346000, Morocco
关键词
Magnetic Kekulene structure; Mixed spins-5/2 and 2; Monte Carlo simulations; Magnetic hysteresis; EFFECTIVE-FIELD THEORY; INDEPENDENT CHEMICAL-SHIFTS; MIXED SPIN-2; HONEYCOMB LATTICE; FERRIMAGNETIC SYSTEM; TRIANGULAR LATTICE; AROMATIC-COMPOUNDS; PHASE-DIAGRAMS; GROUND-STATE; ISING SYSTEM;
D O I
10.1016/j.physa.2018.09.125
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The magnetic properties of magnetic Kekulene structure with mixed spins-5/2 and 2 Ising model have been studied using Monte Carlo simulations. The ground state phase diagrams of system Ising model and the thermal magnetization have been obtained. The transition temperature has been determined. The effect of reduced crystal field and exchange interactions on the magnetic Kekulene structure are studied. Finally, the magnetic hysteresis cycles of the mixed spins-5/2 and 2 Ising model on a magnetic Kekulene structure have been obtained for a several values of crystal field, exchange interactions and temperatures values. The superparamagnetism behavior is observed in Kekulene structure. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:974 / 981
页数:8
相关论文
共 45 条
[1]   The role of dispersion forces in metal-supported self-assembled monolayers [J].
Boto, Roberto A. ;
Contreras-Garcia, J. ;
Calatayud, M. .
COMPUTATIONAL AND THEORETICAL CHEMISTRY, 2015, 1053 :322-327
[2]   Crystal field effect on a bilayer Bethe lattice [J].
Canko, Osman ;
Albayrak, Erhan .
PHYSICAL REVIEW E, 2007, 75 (01)
[3]  
Clar E., 1972, The Aromatic Sextet, DOI DOI 10.1007/978-94-009-7197-44
[4]   MOLECULAR VIBRATIONS AND MEAN AMPLITUDES OF KEKULENE, INCLUDING RELEVANT HISTORICAL GLIMPSES [J].
CYVIN, BN ;
CYVIN, SJ ;
BRUNVOLL, J ;
BRENDSDAL, E .
JOURNAL OF MOLECULAR STRUCTURE, 1995, 346 :21-34
[5]  
Cyvin S. J., 1988, KEKUIC STRUCTURES BE
[6]   CONJUGATION IN MACROCYCLIC SYSTEMS .27. BENZENOID VERSUS ANNULENOID AROMATICITY - SYNTHESIS AND PROPERTIES OF KEKULENE [J].
DIEDERICH, F ;
STAAB, HA .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1978, 17 (05) :372-374
[7]   Dynamic magnetic properties of mixed half-integer (sigma = 3/2) and half-integer (S = 5/2) spins: Dynamic effectice-field theory [J].
Ertas, Mehmet ;
Yilmaz, Ali .
COMPUTATIONAL CONDENSED MATTER, 2018, 14 :1-7
[8]   Dynamic magnetic properties in the kinetic Ising ferromagnet on triangular lattice within the effective-field theory and using Glauber-type stochastic dynamics [J].
Ertas, Mehmet ;
Kantar, Ersin ;
Kocakaplan, Yusuf ;
Keskin, Mustafa .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2016, 444 :732-743
[9]   Dynamic magnetic behavior of the mixed spin (2,5/2) Ising system with antiferromagnetic/antiferromagnetic interactions on a bilayer square lattice [J].
Ertas, Mehmet ;
Keskin, Mustafa .
CHINESE PHYSICS B, 2013, 22 (12)
[10]   Effective-field theory for dynamic phase diagrams of the kinetic spin-3/2 Blume-Capel model under a time oscillating longitudinal field [J].
Ertas, Mehmet ;
Kocakaplan, Yusuf ;
Keskin, Mustafa .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2013, 348 :113-119