scholarly journals Tricritical point and phase diagram based on critical scaling in the monoaxial chiral helimagnet Cr1/3NbS2

2017 ◽  
Vol 96 (9) ◽  
Author(s):  
Hui Han ◽  
Lei Zhang ◽  
Deepak Sapkota ◽  
Ningning Hao ◽  
Langsheng Ling ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Tricritical Point ◽  
Critical Scaling

Tricritical point in the p-T phase diagram of Ag2HgI4

1988 ◽  
Vol 28-30 ◽  
pp. 194-199 ◽  
Author(s):  
Bogdan Baranowski ◽  
Milan Friesel ◽  
Arnold Lundén
Keyword(s):  
Phase Diagram ◽  
Tricritical Point ◽  
T Phase

Tricritical-Point Phase Diagram in FeCl2

1974 ◽  
Vol 33 (18) ◽  
pp. 1098-1101 ◽  
Author(s):  
R. J. Birgeneau ◽  
G. Shirane ◽  
M. Blume ◽  
W. C. Koehler
Keyword(s):  
Phase Diagram ◽  
Tricritical Point

scholarly journals Field-induced tricritical phenomenon and magnetic structures in magnetic Weyl semimetal candidate NdAlGe

2021 ◽  
Author(s):  
Jun Zhao ◽  
Wei Liu ◽  
Aziz Ur Rahman ◽  
Fanying Meng ◽  
Langsheng Ling ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Critical Exponents ◽  
Tricritical Point ◽  
Mean Field ◽  
Scaling Analysis ◽  
Topological Properties ◽  
Mean Field Model ◽  
Spin Configuration ◽  
Magnetic Structures ◽  
Weyl Semimetal

Abstract Non-centrosymmetric NdAlGe is considered to be a candidate for magnetic Weyl semimetal in which the Weyl nodes can be moved by magnetization. Clarification of the magnetic structures and couplings in this system is thus crucial to understand its magnetic topological properties. In this work, we conduct a systematical study of magnetic properties and critical behaviors of single-crystal NdAlGe. Angle-dependent magnetization exhibits strong magnetic anisotropy along the c-axis and absolute isotropy in the ab-plane. The study of critical behavior with H//c gives critical exponents β = 0.236(2), γ = 0.920(1), and δ = 4.966(1) at critical temperature TC = 5.2(2) K. Under the framework of the universality principle, M(T, H) curves are scaled into universality curves using these critical exponents, demonstrating reliability and self-consistency of the obtained exponents. The critical exponents of NdAlGe are close to the theoretical prediction of a tricritical mean-field model, indicating a field-induced tricritical behavior. Based on the scaling analysis, a H −T phase diagram for NdAlGe with H//c is constructed, revealing a ground state with an up-up- down spin configuration. The phase diagram unveils multiple phases including up-up-down domains, up-up-down ordering state, polarized ferromagnetic (PFM), and paramagnetic (PM) phases, with a tricritical point (TCP) located at the intersection [TT CP = 5.27(1) K, HT CP = 30.1(3) kOe] of up-up-down, PFM, and PM phases. The multiple phases and magnetic structures imply a delicate competition and balance between variable interactions and couplings, laying a solid foundation for unveiling topological properties and critical phenomena in this system.

scholarly journals Quantum tricritical point in the temperature-pressure-magnetic field phase diagram of CeTiGe3

2018 ◽  
Vol 97 (4) ◽  
Author(s):  
Udhara S. Kaluarachchi ◽  
Valentin Taufour ◽  
Sergey L. Bud'ko ◽  
Paul C. Canfield
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Tricritical Point ◽  
Field Phase

Landau theory and phase diagram of KMn1 xCaxF3ferroelastic crystal near the tricritical point: calorimetric and order parameter study

2004 ◽  
Vol 16 (16) ◽  
pp. 2879-2890 ◽  
Author(s):  
F J Romero ◽  
M C Gallardo ◽  
S A Hayward ◽  
J Jiménez ◽  
J del Cerro ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Order Parameter ◽  
Landau Theory ◽  
Tricritical Point ◽  
Parameter Study

MULTICRITICALITY IN STABILIZED 2D QUANTUM GRAVITY

1992 ◽  
Vol 07 (37) ◽  
pp. 3465-3477
Author(s):  
OSCAR DIEGO ◽  
JOSÉ GONZÁLEZ
Keyword(s):  
Phase Diagram ◽  
Quantum Gravity ◽  
Critical Behavior ◽  
Critical Line ◽  
Tricritical Point ◽  
Stable Phase ◽  
Multicritical Point ◽  
Stochastic Stabilization ◽  
The Matrix ◽  
Pure Gravity

We study the simplest perturbation of the matrix model for pure gravity susceptible of reaching the k=3 multicritical point in the framework of the stochastic stabilization of 2D quantum gravity. We show the existence of a line of points in the phase diagram with the genuine critical behavior of the k=2 theory. All the points of the critical line, up to the tricritical point, can be approached from a stable phase at the dominant level in 1/N expansion.

A PHASE DIAGRAM OF SMECTOGEN-NON-SMECTOGEN BINARY MIXTURE: A PHOTON TRANSMISSION STUDY

2002 ◽  
Vol 16 (26) ◽  
pp. 3959-3970 ◽  
Author(s):  
S. YILDIZ ◽  
İ. E. SERHATLI ◽  
Ö. PEKCAN ◽  
A. N. BERKER ◽  
H. ÖZBEK
Keyword(s):  
Phase Diagram ◽  
Binary Mixture ◽  
Liquid Crystalline ◽  
Tricritical Point ◽  
Phase Region ◽  
Phase Line ◽  
Weight Percentage ◽  
Transmission Study ◽  
Experimental Resolution ◽  
Visible Photon

The ultraviolet/visible photon transmission technique was applied to study the phase diagram of a mixture of 4-ethoxy-4′-(6-vinyloxyhexyloxyl) azobenzene (VE), a smectogen, and 4-hexoxy-3′-methyl-4′-(6-acryloyloxyhexyloxy) azobenzene (AH), which by itself exhibits no liquid crystalline behavior. It has been found that the N-Sm-A phase line terminates at either a tricritical point at about X VE = 0.9, where X VE is the weight percentage of VE in the binary mixture, or at least at a tricritical region 0.9 < X VE < 1 within the experimental resolution. For X VE = 1 the nematic phase region is not large enough to drive the transition second-order. It is found that the value of the critical exponent β for X VE = 0.9 is consistent with the tricritical value.

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