Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/physrevb.31.6116 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Excellent Barocaloric Effect by Modulating Geometrical Frustrations in MnPt.
J Am Chem Soc
October 2024
Department of Physical Chemistry, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Article Synopsis
- * Research highlights the large barocaloric effect (BCE) in MnPt, showing a significant temperature change strength of 9.77 K per 100 MPa, driven by low pressure and geometrical frustration.
- * The study reveals that geometrical frustration enhances BCE by inducing strong spin fluctuations and magnetic moment changes, leading to greater sensitivity in magnetic phase transitions and advancing barocaloric refrigeration research.
Local and Nonlocal Electronic Correlations at the Metal-Insulator Transition in the Two-Dimensional Hubbard Model.
Phys Rev Lett
June 2024
CPHT, CNRS, École polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France.
Article Synopsis
- Understanding the physics of the single-orbital Hubbard model is crucial for grasping how metal-insulator transitions occur in real materials, particularly in the intermediate-coupling regime.
- Recent advanced techniques have helped analyze the spectral function in this intermediate regime, clarifying how antiferromagnetic fluctuations and local electronic correlations contribute to forming an insulating state.
- The study delineates the distinct Slater and Heisenberg regimes of the phase diagram, highlighting a crossover region where competing spatial and local electronic correlations affect the local magnetic moment and the overall insulating state.
Observation of the Fluctuation Spin Hall Effect in a Low-Resistivity Antiferromagnet.
Nano Lett
December 2023
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, China.
The spin Hall effect (SHE) can generate a pure spin current by an electric current, which is promisingly used to electrically control magnetization. To reduce the power consumption of this control, a giant spin Hall angle (SHA) in the SHE is desired in low-resistivity systems for practical applications. Here, critical spin fluctuation near the antiferromagnetic (AFM) phase transition in chromium (Cr) is proven to be an effective mechanism for creating an additional part of the SHE, named the fluctuation spin Hall effect.
View Article and Find Full Text PDFThe discovery of ferromagnetism in two-dimensional (2D) van der Waals crystals has generated widespread interest. The seeking of robust 2D ferromagnets with high Curie temperature () is vitally important for next-generation spintronic devices. However, owing to the enhanced spin fluctuation and weak exchange interaction upon the reduced dimensionalities, the exploring of robust 2D ferromagnets with > 300 K is highly demanded but remains challenging.
View Article and Find Full Text PDFMagnetism-Induced Band-Edge Shift as the Mechanism for Magnetoconductance in CrPS Transistors.
Nano Lett
September 2023
Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
Transistors realized on the 2D antiferromagnetic semiconductor CrPS exhibit large magnetoconductance due to magnetic-field-induced changes in the magnetic state. The microscopic mechanism coupling the conductance and magnetic state is not understood. We identify it by analyzing the evolution of the parameters determining the transistor behavior─carrier mobility and threshold voltage─with temperature and magnetic field.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!