Phase diagrams of the Blume-Capel model with mixed spins (1/2,1) in a transverse crystal field

被引：1

作者：

Hachem, O. ^{[1
]}

Saadi, H. ^{[1
]}

Jalal, E. M. ^{[1
,2
]}

Hachem, N. ^{[1
]}

El Bouziani, M. ^{[1
]}

机构：

[1] Chouaib Doukkali Univ, Fac Sci, Lab LPMC, Theoret Phys Grp, El Jadida, Morocco

[2] Sultan Moulay Slimane Univ, Polydisciplinary Fac Khouribga, Lab LS3M, Beni Mellal, Morocco

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2023年 / 138卷 / 12期

关键词：

ISING-MODEL; MEAN-FIELD; TRICRITICAL BEHAVIOR; SYSTEM; SPIN-(1)/(2); TRANSITION;

D O I：

10.1140/epjp/s13360-023-04785-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The critical behavior and phase diagrams of the ferromagnetic mixed spin-1/2 and spin-1 Blume-Capel model in a transverse crystal field are studied on a hypercube lattice using the mean-field approximation based on the statistical Bogoliubov inequality for the free energy. The effects of longitudinal and transverse crystal fields on the magnetizations and phase diagrams of the system are examined. First- and second-order phase transitions with tricritical points are found for some parameters of the system Hamiltonian. Furthermore, interesting results arise from the quantum fluctuations caused by the presence of the transverse crystal field.

引用

页数：8

共 34 条

[1] Mixed spin-1/2 and spin-1 Blume-Capel Ising ferrimagnetic system on the Bethe lattice
Albayrak, E
Keskin, M
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 261 (1-2) : 196 - 203
[2] Antiferromagnetic spin-1 XYZ model with the Dzyaloshinskii-Moriya interaction
Albayrak, Erhan
[J]. EUROPEAN PHYSICAL JOURNAL PLUS, 2022, 137 (05)
[3] The Mixed Spin-1/2 and Spin-1 Ising-Heisenberg Model in the Mean-Field Approximation: a New Approach
Albayrak, Erhan
[J]. CHINESE PHYSICS LETTERS, 2018, 35 (03)
[4] Tricritical point in the mixed-spin Blume-Capel model on three-dimensional lattices: Metropolis and Wang-Landau sampling approaches
Azhari, Mouhcine
Yu, Unjong
[J]. PHYSICAL REVIEW E, 2020, 102 (04)
[5] Mean field study of the mixed Ising model in a random crystal field
Bahmad, L.
Benyoussef, A.
El Kenz, A.
[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2008, 387 (04) : 825 - 833
[6] Phase transition and magnetic properties of a bond-diluted mixed spin-1 and spin-1/2 Ising model with the uniaxial and biaxial single-ion anisotropy
Belmamoun, Y.
Kerouad, M.
[J]. PHYSICA SCRIPTA, 2008, 77 (02)
[7] REAL-SPACE RENORMALIZATION-GROUP INVESTIGATION OF THE 3-DIMENSIONAL SEMI-INFINITE BLUME-EMERY-GRIFFITHS MODEL
BENYOUSSEF, A
BOCCARA, N
ELBOUZIANI, M
[J]. PHYSICAL REVIEW B, 1986, 34 (11): : 7775 - 7783
[8] THEORY OF FIRST-ORDER MAGNETIC PHASE CHANGE IN UO2
BLUME, M
[J]. PHYSICAL REVIEW, 1966, 141 (02): : 517 - &
[9] MEAN FIELD RENORMALIZATION-GROUP ANALYSIS OF THE BLUME-CAPEL MODEL
BONFIM, OFD
[J]. PHYSICA A, 1985, 130 (1-2): : 367 - 373
[10] ON POSSIBILITY OF FIRST-ORDER PHASE TRANSITIONS IN ISING SYSTEMS OF TRIPLET IONS WITH ZERO-FIELD SPLITTING
CAPEL, HW
[J]. PHYSICA, 1966, 32 (05): : 966 - &

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