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Single crystals of $\alpha$-MnTe were synthesized by chemical vapor transport using iodine as the transport reagent. Structural characterization by powder x-ray diffraction confirmed the hexagonal structure (space group P6$_{3}$/mmc).…

Altermagnets recently came into the spotlight as a new class of magnetic materials, arising as a consequence of specific crystal symmetries. They are characterized by a spin-polarized electronic band structure similar to ferromagnets, but…

While the thermoelectric materials progress based on the engineering of electronic and phononic characteristics is reaching a plateau, adding the spin degree of freedom has the potential to open a new landscape for alternative…

Altermagnets are a new class of magnetic materials characterized by fully compensated spins arranged in alternating local structures, allowing for spin-split bands similar to those found in ferromagnets without net magnetism. Recently, MnTe…

We report on Terahertz detection by inverted band structure HgTe-based Field Effect Transistor up to room temperature. At low temperature, we show that nonlinearities of the transistor channel allows for the observation of the quantum phase…

We investigate the harmonic and anharmonic contributions to the phonon spectrum of lead telluride, and perform a complete characterization of how the anharmonic effects dominate the phonons in PbTe as temperature increases. This effect is…

Materials Science · Physics 2015-08-10 A. H. Romero , E. K. U. Gross , M. J. Verstraete , Olle Hellman

The electronic structure basis of the extremely large magnetoresistance in layered non-magnetic tungsten ditelluride has been investigated by angle-resolved photoelectron spectroscopy. Hole and electron pockets of approximately the same…

Materials Science · Physics 2014-11-26 I. Pletikosić , Mazhar N. Ali , A. Fedorov , R. J. Cava , T. Valla

In Fe-based superconductors, electron doping is often realized by the substitution of transition-metal atoms for Fe. In order to investigate how the electronic structure of the parent compound is influenced by Zn substitution, which…

We describe how thermally induced spin fluctuations modify the electronic structures of two prototypical altermagnets, CrSb and MnTe, via application of the disordered local moment picture. For both materials, our self-consistent, ab initio…

Materials Science · Physics 2026-03-17 Christopher D. Woodgate , Nabil Menai , Arthur Ernst , Julie B. Staunton

The paper reports new results of the 57Fe M\"ossbauer measurements on Fe3PO4O3 powder sample recorded at various temperatures including the point of magnetic phase transition TN ~ 163K. The spectra measured above TN consist of quadrupole…

Strongly Correlated Electrons · Physics 2018-03-28 A. V. Sobolev , A. A. Akulenko , I. S. Glazkova , D. A. Pankratov , I. A. Presniakov

Thermodynamic properties of a tetrameric bond-alternating Heisenberg spin chain with ferromagnetic-ferromagnetic-antiferromagnetic-antiferromagnetic exchange interactions are studied using the transfer-matrix renormalization group and…

Strongly Correlated Electrons · Physics 2009-11-10 H. T. Lu , Y. H. Su , L. Q. Sun , J. Chang , C. S. Liu , H. G. Luo , T. Xiang

Abstract We study the temperature dependence of the absorption of microwaves by random-anisotropy magnets. It is governed by strong metastability due to the broad distribution of energy barriers separating different spin configurations. At…

Materials Science · Physics 2025-02-14 D. A. Garanin , E. M. Chudnovsky

The interactions among lattice, charge, and spin degrees of freedom fundamentally shape material properties. In FeSe, symmetry-breaking perturbations serve as highly sensitive probes of these couplings. Previous work has shown that defects…

Mn$_{3}$Sn is a non-collinear antiferromagnet which displays a large anomalous Hall effect at room temperature. It is believed that the principal contribution to its anomalous Hall conductivity comes from Berry curvature. Moreover, dc…

Strongly Correlated Electrons · Physics 2019-07-24 Bing Cheng , Youcheng Wang , D. Barbalas , Tomoya Higo , S. Nakatsuji , N. P. Armitage

The magnetism of the second antiferromagnetic phase (AF2) arising in the iron-based LaFeAsO$_{1-x}$H$_{x}$ superconductor for $x\gtrsim0.4$ was investigated by muon spin rotation measurements under hydrostatic pressure up to 2.6 GPa. The…

Strongly Correlated Electrons · Physics 2020-05-13 M. Hiraishi , K. M. Kojima , H. Okabe , S. Takeshita , A. Koda , R. Kadono , R. Khasanov , S. Iimura , S. Matsuishi , H. Hosono

Terahertz (THz) anisotropic absorption in graphene could be significantly modified upon applying a static magnetic field on its ultra-fast 2D Dirac electrons. In general, by deriving the generalized Fresnel coefficients for monolayer…

Mesoscale and Nanoscale Physics · Physics 2023-05-03 D. Jahani , O. Akhavan , A. Alidoust Ghatar

We report results on the temperature dependence of the susceptibilities of a set of MBE-grown short-period EuTe/PbTe antiferromagnetic superlattices having different EuTe layer thicknesses. In-plane and orthogonal susceptibilities have been…

Condensed Matter · Physics 2009-10-30 Lorenzo Bergomi , James J. Chen

The magnon exchange mechanism of ferromagnetic superconductivity (FM-superconductivity) was developed to explain in a natural way the fact that the superconductivity in $UGe_2$, $ZrZn_2$ and $URhGe$ is confined to the ferromagnetic…

Superconductivity · Physics 2009-11-07 N. Karchev

We report on a systematic optical investigation of w\"ustite. In addition, the sample under consideration, Fe0.93O, has been characterized in detail by electrical transport, dielectric, magnetic and thermodynamic measurements. From infrared…

Strongly Correlated Electrons · Physics 2015-06-04 F. Schrettle , Ch. Kant , P. Lunkenheimer , F. Mayr , J. Deisenhofer , A. Loidl

In this work, we report thermal conductivity(k) of magnesium telluride (MgTe) with various crystallographic phases such as rocksalt, zincblende, wurtzite and nickel arsenic (NiAs) using density functional theory and Boltzmann transport…

Materials Science · Physics 2021-08-18 Rajmohan Muthaiah , Jivtesh Garg
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