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Related papers: Fluorides of silver under large compression

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Our investigation explores the intricate domain of thermoelectric phenomena within silver (Ag)-infused chalcopyrites, focusing on compositions such as AgXTe$_2$ (where X=Ga, In) and the complex quaternary system Ag$_2$ZnSn/GeY$_2$ (with…

Materials Science · Physics 2025-06-09 Dimple Rani , Subarata Jana , Manish Kumar Niranjan , Prasanjit Samal

The strongly correlated metals U2Pt2In and U3Ni3Sn4 show pronounced non-Fermi liquid (NFL) phenomena at ambient pressure. Here we review single-crystal electrical resistivity measurements under pressure (p <= 1.8 GPa) conducted to…

Strongly Correlated Electrons · Physics 2009-11-07 A. de Visser , P. Estrela , T. Naka

The two-dimensional Heisenberg exchange model with out-of-plane anisotropy and a Dzyaloshinskii-Moriya interaction is employed to investigate the lifetime and stability of antiferromagnetic (AFM) skyrmions as a function of temperature and…

Mesoscale and Nanoscale Physics · Physics 2019-05-08 P. F. Bessarab , D. Yudin , D. R. Gulevich , P. Wadley , M. Titov , Oleg A. Tretiakov

The cubic antifluorite structure comprises a face-centered cubic sublattice of anions with cations on the tetrahedral sites. The voids in the antifluorite structure that are crucial for superionicity in Li2O might also act as atomic traps.…

Materials Science · Physics 2019-01-21 Hao Gao , Jian Sun , Chris J. Pickard , Richard J. Needs

Our single crystal study of the magneto-thermal and transport properties of the pyrochlore iridate Eu2Ir2O7 reveals a continuous phase transition from a paramagnetic metal to an antiferromagnetic insulator for a sample with stoichiometry…

Strongly Correlated Electrons · Physics 2015-06-04 Jun J. Ishikawa , Eoin C. T. O'Farrell , Satoru Nakatsuji

In this supplemental document we explain the details of our ab initio density functional theory calculations and crystal structure searches performed in CaF2 under pressure. Also we report the computed P-dependence of the formation energy…

Materials Science · Physics 2014-05-27 Claudio Cazorla , Daniel Errandonea

Using ab initio evolutionary simulations, we explore all the possible stoichiometries for Mg-O system at pressures up to 850 GPa. In addition to MgO, our calculations find that two extraordinary compounds MgO2 and Mg3O2 become…

Materials Science · Physics 2012-12-05 Qiang Zhu , Artem R. Oganov , Andriy O. Lyakhov

We present the first study of a magnetic quantum phase transition in the itinerant-electron ferromagnet Ni3Al at high pressures. Electrical resistivity measurements in a diamond anvil cell at hydrostatic pressures up to 100 kbar and…

Strongly Correlated Electrons · Physics 2007-05-23 P. G. Niklowitz , F. Beckers , G. G. Lonzarich , G. Knebel , B. Salce , J. Thomasson , N. Bernhoeft , D. Braithwaite , J. Flouquet

High-temperature part of the phase diagram of tetragonal frustrated antiferromagnets is discussed within the framework of the mean-field approach. Based on recent experimental findings, we generalize previous theoretical studies by…

Strongly Correlated Electrons · Physics 2025-12-23 Oleg I. Utesov , Danila P. Budylev

We report resistivity measurement under pressure in single crystals of SrFe_2As_2, which is one of the parent materials of Fe-based superconductors. The structural and antiferromagnetic (AFM) transition of T_0 = 198 K at ambient pressure is…

Superconductivity · Physics 2009-11-13 H. Kotegawa , H. Sugawara , H. Tou

There are two silver perovskite oxides: AgNbO3 and AgTaO3. AgNbO3 has a noncentrosymmetric group of Pmc21 at room temperature with a ferri-electric ordering of polarization. Such a ferri-electric state with small polarization can be changed…

Materials Science · Physics 2011-08-31 Desheng Fu , Mitsuru Itoh

At ambient pressure, sodium, chlorine, and their only known compound NaCl, have well-understood crystal structures and chemical bonding. Sodium is a nearly-free-electron metal with the bcc structure. Chlorine is a molecular crystal,…

Rare earth chalcogenides provide a great platform to study exotic quantum phenomena such as superconductivity and charge density waves. Among various interesting properties, the coupling between magnetism and electronic transport has…

Monovalent non-transition metals are robust Fermi liquids. They defy superconductivity even at lowest temperatures (Li is a minor exception:Tc $\approx$ 0.4 mK). However, Thapa and Pandey \cite{ThapaPandey} have recently reported signals…

Superconductivity · Physics 2018-08-09 Ganapathy Baskaran

The family of binary compounds composed of magnesium and silicon is rather rich. In addition to the well-known magnesium silicide Mg$_2$Si, other compounds, including MgSi$_2$, Mg$_4$Si$_7$, Mg$_5$Si$_6$, MgSi, and Mg$_9$Si$_5$, have also…

Materials Science · Physics 2018-03-06 Tran Doan Huan

We present a comprehensive first--principles study of the structural stability and superconducting behavior of Li$_2$PdH$_2$ under high pressure. Using random structure searching and phonon calculations, we identify a pressure--induced…

Superconductivity · Physics 2025-08-08 Zahra Alizadeh , Yue-Wen Fang , Ion Errea , M. R. Mohammadizadeh

We explore possibilities of stabilizing a skyrmion (SkX) phase in the frustrated antiferromagnetic (AF) Heisenberg model with DMI on a triangular lattice at ambient conditions. We show that by stacking multiple AF layers and coupling them…

Strongly Correlated Electrons · Physics 2023-06-19 Mariia Mohylna , Vitalii Tkachenko , Milan Žukovič

Germanates are often used as structural analogs of planetary silicates. We have explored the high-pressure phase relations in Mg$_2$GeO$_4$ using diamond anvil cell experiments combined with synchrotron x-ray diffraction and computations…

Geophysics · Physics 2024-03-06 R. V. Divya , G. Kumar , R. E. Cohen , S. J. Tracy , Y. Meng , S. Chariton , V. B. Prakapenka , R. Dutta

Hybrid transition metal oxides continue to attract attention due to their multiple degrees of freedom ($e.g.$, lattice, charge, spin, and orbital) and versatile properties. Here we investigate the magnetic and electronic properties of the…

Strongly Correlated Electrons · Physics 2022-05-17 Ke Yang , Wenjing Xu , Di Lu , Yuxuan Zhou , Lu Liu , Yaozhenghang Ma , Guangyu Wang , Hua Wu

The Fermi surfaces (FS's) and band dispersions of EuRh2As2 have been investigated using angle-resolved photoemission spectroscopy. The results in the high-temperature paramagnetic state are in good agreement with the full potential…

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