Publications associées à Point critique (thermodynamique)

Tomographic microscopy of functionally graded polymer-derived SiCN ceramics with tunable gradients

Polymer-derived ceramics (PDCs) are a very attractive class of materials due to their excellent properties such as resistance to high temperatures and harsh environments, adjustability of mechanical and functional behavior, and compatibility with a broad r ...

London2024

Piezoelectric Properties of BiFeO3 Exposed to High Temperatures

Dragan Damjanovic, Xiaolong Li

BiFeO3 is a ferroelectric with a Curie temperature of 830 C-degrees, however, its piezoelectric performance at high temperature remains unclear. The current work reveals a disappearance/recovery of piezoelectricity in BiFeO3 at elevated temperature and upo ...

Weinheim2024

Magnetic structure and magnetoelectric properties of the spin-flop phase in LiFePO4

Ellen Fogh, Paola Caterina Forino, Sofie Janas

We investigate the magnetic structure and magnetoelectric(ME) effect in the high -field phase of the antiferromagnet LiFePO 4 above the critical field of 31 T. A neutron diffraction study in pulsed magnetic fields reveals the propagation vector to be q = 0 ...

Amer Physical Soc2024

Eight-vertex criticality in the interacting Kitaev chain

Frédéric Mila, Natalia Chepiga

We show that including pairing and repulsion into the description of one-dimensional spinless fermions, as in the domain wall theory of commensurate melting or the interacting Kitaev chain, leads, for strong enough repulsion, to a line of critical points i ...

AMER PHYSICAL SOC2023

Confirming the high pressure phase diagram of the Shastry-Sutherland model

Henrik Moodysson Rønnow, Martin Mansson

A Muon Spin Rotation (mu+SR) study was conducted to investigate the magnetic properties of SrCu2(BO3)(2) (SCBO) as a function of temperature/pressure. Measurements in zero field and transverse field confirm the absence of long range magnetic order at high ...

IOP PUBLISHING LTD2023

Critical properties of the quantum Ashkin-Teller chain with chiral perturbations

Frédéric Mila, Natalia Chepiga

We investigate the nature of the phase transitions in the quantum Ashkin-Teller chain in the presence of chiral perturbations. We locate the Lifshitz line separating a region of direct chiral transitions from the region where the transition is through an i ...

College Pk2023

Pressure dependence of superconducting properties of layered BaNi2P2

Henrik Moodysson Rønnow, Ivica Zivkovic, Richard Gaal, Youngro Lee

The discovery of unconventional superconductivity in a broad class of iron-based materials invoked extensive research on the corresponding compounds of other transition metals. For instance, BaNi2P2 exhibits a superconducting transition with a critical tem ...

ELSEVIER2023

Direct observation of exchange anisotropy in the helimagnetic insulator Cu2OSeO3

Arnaud Magrez, Priya Ranjan Baral, Jonathan White, Chen Luo

The helical magnetic structures of cubic chiral systems are well explained by the competition among Heisen-berg exchange, Dzyaloshinskii-Moriya interaction, cubic anisotropy, and anisotropic exchange interaction (AEI). Recently, the role of the latter has ...

AMER PHYSICAL SOC2023

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Point critique (thermodynamique)

Tomographic microscopy of functionally graded polymer-derived SiCN ceramics with tunable gradients

Piezoelectric Properties of BiFeO3 Exposed to High Temperatures

Large impact of phonon lineshapes on the superconductivity of solid hydrogen

Field-controlled multicritical behavior and emergent universality in fully frustrated quantum magnets

Magnetic structure and magnetoelectric properties of the spin-flop phase in LiFePO4

Eight-vertex criticality in the interacting Kitaev chain

Confirming the high pressure phase diagram of the Shastry-Sutherland model

Critical properties of the quantum Ashkin-Teller chain with chiral perturbations

Pressure dependence of superconducting properties of layered BaNi2P2

Direct observation of exchange anisotropy in the helimagnetic insulator Cu2OSeO3

Graph Chatbot

Chattez avec Graph Search

Tomographic microscopy of functionally graded polymer-derived SiCN ceramics with tunable gradients

Eight-vertex criticality in the interacting Kitaev chain

Confirming the high pressure phase diagram of the Shastry-Sutherland model

Large impact of phonon lineshapes on the superconductivity of solid hydrogen

Field-controlled multicritical behavior and emergent universality in fully frustrated quantum magnets

Pressure dependence of superconducting properties of layered BaNi2P2

Critical properties of the quantum Ashkin-Teller chain with chiral perturbations

Piezoelectric Properties of BiFeO3 Exposed to High Temperatures

Magnetic structure and magnetoelectric properties of the spin-flop phase in LiFePO4

Direct observation of exchange anisotropy in the helimagnetic insulator Cu2OSeO3