scholarly journals Persistent spin dynamics and absence of spin freezing in the H−T phase diagram of the two-dimensional triangular antiferromagnet YbMgGaO4

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
Zhaofeng Ding ◽  
Zihao Zhu ◽  
Jian Zhang ◽  
Cheng Tan ◽  
Yanxing Yang ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Spin Dynamics ◽  
Two Dimensional ◽  
Spin Freezing ◽  
T Phase

MAGNETO-STRUCTURAL TRANSITIONS: MOLECULAR DYNAMICS SIMULATIONS OF A UNITED-ATOM, MESOSCOPIC MODEL

2013 ◽  
Vol 27 (07) ◽  
pp. 1350047
Author(s):  
JAYEE BHATTACHARYA ◽  
VIJAY SINGH ◽  
SURAJIT SENGUPTA ◽  
INDRA DASGUPTA
Keyword(s):  
Molecular Dynamics ◽  
Phase Diagram ◽  
Molecular Dynamics Simulations ◽  
Structural Transition ◽  
Spin Dynamics ◽  
Heusler Alloys ◽  
Exchange Interactions ◽  
Two Dimensional ◽  
Mesoscopic Model ◽  
Dynamics Simulations

In this paper, we perform hybrid Langevin and molecular dynamics simulations on a two-dimensional, united-atom, mesoscopic model to obtain the phase diagram for a solid undergoing a magneto-structural transition. The interatomic exchange interactions are inspired by ab initio calculations in the Ni 2 MnGa system. The spins are updated with the help of Langevin soft spin dynamics. The nature of the phase diagram obtained from our simulations is similar to that obtained experimentally in Ni 2+x Mn 1-x Ga Heusler alloys showing magnetic and martensitic transitions with excess Ni stoichiometry viz. x.

scholarly journals  Spin dynamics and spin freezing behavior in the two-dimensional antiferromagnetNiGa2S4revealed by Ga-NMR, NQR andμSRmeasurements

2008 ◽  
Vol 77 (5) ◽  
Author(s):  
Hideo Takeya ◽  
Kenji Ishida ◽  
Kentaro Kitagawa ◽  
Yoshihiko Ihara ◽  
Keisuke Onuma ◽  
...  
Keyword(s):  
Spin Dynamics ◽  
Freezing Behavior ◽  
Two Dimensional ◽  
Spin Freezing

THE p-T PHASE DIAGRAM OF OXYGEN DETERMINED BY RAMAN SCATTERING

1984 ◽  
Vol 45 (C8) ◽  
pp. C8-195-C8-198
Author(s):  
H. D. Hochheimer ◽  
H. J. Jodl ◽  
F. Bolduan
Keyword(s):  
Phase Diagram ◽  
Raman Scattering ◽  
T Phase

COMPLEX BIFURCATION STRUCTURES IN THE HINDMARSH–ROSE NEURON MODEL

2007 ◽  
Vol 17 (09) ◽  
pp. 3071-3083 ◽  
Author(s):  
J. M. GONZÀLEZ-MIRANDA
Keyword(s):  
Phase Diagram ◽  
Bifurcation Diagram ◽  
Parameter Space ◽  
Neuron Model ◽  
Two Dimensional ◽  
Dimensional Parameter ◽  
Rapid Responses ◽  
Bifurcation Structures

The results of a study of the bifurcation diagram of the Hindmarsh–Rose neuron model in a two-dimensional parameter space are reported. This diagram shows the existence and extent of complex bifurcation structures that might be useful to understand the mechanisms used by the neurons to encode information and give rapid responses to stimulus. Moreover, the information contained in this phase diagram provides a background to develop our understanding of the dynamics of interacting neurons.

scholarly journals Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Zhuoyu Chen ◽  
Bai Yang Wang ◽  
Adrian G. Swartz ◽  
Hyeok Yoon ◽  
Yasuyuki Hikita ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Quantum Phase Transitions ◽  
Metallic State ◽  
Two Dimensional ◽  
Metallic Behavior ◽  
Universal Behavior ◽  
Hall Resistivity ◽  
Wide Range ◽  
Metal State

AbstractAnomalous metallic behavior, marked by a saturating finite resistivity much lower than the Drude estimate, has been observed in a wide range of two-dimensional superconductors. Utilizing the electrostatically gated LaAlO3/SrTiO3 interface as a versatile platform for superconductor-metal quantum phase transitions, we probe variations in the gate, magnetic field, and temperature to construct a phase diagram crossing from superconductor, anomalous metal, vortex liquid, to the Drude metal state, combining longitudinal and Hall resistivity measurements. We find that the anomalous metal phases induced by gating and magnetic field, although differing in symmetry, are connected in the phase diagram and exhibit similar magnetic field response approaching zero temperature. Namely, within a finite regime of the anomalous metal state, the longitudinal resistivity linearly depends on the field while the Hall resistivity diminishes, indicating an emergent particle-hole symmetry. The universal behavior highlights the uniqueness of the quantum bosonic metallic state, distinct from bosonic insulators and vortex liquids.

Low-density phase diagram of the two-dimensional Coulomb gas

1986 ◽  
Vol 33 (1) ◽  
pp. 499-509 ◽  
Author(s):  
J. M. Caillol ◽  
D. Levesque
Keyword(s):  
Phase Diagram ◽  
Coulomb Gas ◽  
Low Density ◽  
Two Dimensional

Phase diagram of a two-dimensional lattice-gas model of oxygen ordering inYBa2Cu3Ozwith realistic interactions

1995 ◽  
Vol 52 (13) ◽  
pp. 9784-9792 ◽  
Author(s):  
D. J. Liu ◽  
T. L. Einstein ◽  
P. A. Sterne ◽  
L. T. Wille
Keyword(s):  
Phase Diagram ◽  
Lattice Gas ◽  
Lattice Gas Model ◽  
Two Dimensional ◽  
Dimensional Lattice ◽  
Oxygen Ordering

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
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