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相关论文: Electronic structure of CeRu4Sn6: a density functi…

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The Kondo resonance is the spectral manifestation of the Kondo properties of the impurity Anderson model, and also plays a central role in the dynamical mean-field theory (DMFT) for correlated electron lattice systems. This article presents…

强关联电子 · 物理学 2009-11-11 J. W. Allen

We report a systematic study of the $5d$-electron-doped system Ce(Fe$_{1-x}$Ir$_x$)$_2$Al$_{10}$ ($0 \leq x \leq 0.15$). With increasing $x$, the orthorhombic $b$~axis decreases slightly while accompanying changes in $a$ and $c$ leave the…

Using angle-resolved photoemission spectroscopy (ARPES) and low-energy electron diffraction (LEED), together with density-functional theory (DFT) calculation, we report the formation of charge density wave (CDW) and its interplay with the…

MgMn$_6$Sn$_6$ is the itinerant ferromagnet on the kagome lattice with high ordering temperature featuring complex electronic properties due to the nontrivial topological electronic band structure, where the spin-orbit coupling (SOC) plays…

强关联电子 · 物理学 2025-10-14 Riju Pal , Kakan Deb , Nitesh Kumar , Bernd Büchner , Alexey Alfonsov , Vladislav Kataev

We study the effects of the exchange interaction between an adsorbed magnetic atom with easy-axis magnetic anisotropy and the conduction-band electrons from the substrate. We model the system using an anisotropic Kondo model and we compute…

介观与纳米尺度物理 · 物理学 2010-08-10 Rok Zitko , Thomas Pruschke

The structural, electronic and magnetic properties of the Kondo-lattice system CeRuSi2 are experimentally investigated and analyzed in the series of other ternary cerium compounds. This system is shown to be an excellent model system…

强关联电子 · 物理学 2015-03-20 V. N. Nikiforov , M. Baran , A. Jedrzejczak , V. Yu. Irkhin

The predicted interplay between Kondo physics and non-trivial topology in SmB$_{6}$ has stimulated many experimental reports, some of which are in apparent contradiction. The origin of the dispute may lie on the fragility of the Kondo…

We report the anisotropic changes in the electronic structure of a Kondo semiconductor CeOs$_2$Al$_{10}$ across an anomalous antiferromagnetic ordering temperature ($T_0$) of 29 K, using optical conductivity spectra. The spectra along the…

强关联电子 · 物理学 2015-05-19 S. Kimura , T. Iizuka , H. Miyazaki , A. Irizawa , Y. Muro , T. Takabatake

Using the density functional theory combined with dynamical mean-field theory, we have performed systematic study of the electronic structure and its band topology properties of Ce$_3$Pt$_3$Bi$_4$ and Ce$_3$Pd$_3$Bi$_4$. At high…

强关联电子 · 物理学 2020-04-29 Chao Cao , Guo-Xiang Zhi , Jian-Xin Zhu

Band calculations for Ce compounds with the AuCu$_{3}$-type crystal structure were carried out on the basis of dynamical mean field theory (DMFT). The results of applying the calculation to CeIn$_{3}$ and CeSn$_{3}$ are presented as the…

强关联电子 · 物理学 2012-05-31 Osamu Sakai , Hisatomo Harima

Recently the Ce-based caged-type compounds having general formula CeT2Al10 (T=Fe, Ru and Os) have generated considerable interest due to the Kondo semiconducting paramagnetic ground state (down to 40 mK) observed in CeFe2Al10 and…

Highly anisotropic properties of CeIr$_3$Si$_2$ have been observed by the magnetization $M$($B$), electrical resistivity $\rho$, and specific heat measurements on a single-crystalline sample. This compound with an orthorhombic structure…

强关联电子 · 物理学 2009-11-13 K. Shigetoh , A. Ishida , Y. Ayabe , T. Onimaru , K. Umeo , Y. Muro , K. Motoya , M. Sera , T. Takabatake

The electronic and magnetic structure of CrPS$_{4}$, a 2D magnetic semiconductor is examined by employing the SCAN meta-GGA density functional. We find the resulting magnetic moment and band gap are in excellent agreement with experiment.…

强关联电子 · 物理学 2024-01-12 A. R. Alcantara , C. Lane , J. T. Haraldsen , R . M. Tutchton

Experiments on the $Gd^{3+}$ Electron Spin Resonance (ESR) in the filled skutterudite $Ce_{1-x}Gd_{x}Fe_{4}P_{12}$ ($x \approx 0.001$), at temperatures where the host resistivity manifests a smooth insulator-metal crossover, provides…

强关联电子 · 物理学 2016-12-28 P. A. Venegas , F. A. Garcia , D. J. Garcia , G. Cabrera , M. A. Avila , C. Rettori

Magnetic field effects in Kondo insulators are studied theoretically, using a local moment approach to the periodic Anderson model within the framework of dynamical mean-field theory. Our main focus is on field-induced changes in…

强关联电子 · 物理学 2009-11-13 Debabrata Parihari , N. S. Vidhyadhiraja , David E. Logan

Magnetization, heat capacity, electrical resistivity, thermoelectric power, and Hall effect have been investigated on single-crystalline Ce_2PdSi_3. This compound is shown to order antiferromagnetically below N'eel temperature (T_N) \~3 K.…

强关联电子 · 物理学 2009-10-31 S. R. Saha , H. Sugawara , T. D. Matsuda , Y. Aoki , H. Sato , E. V. Sampathkumaran

First principles FPLAPWcalculations were performed in the framework of Density Functional Theory (DFT), to study the electronic structures and magnetic properties for the new full-Heusler compounds: Sc2CoZ (Z=Si, Ge, Sn). The investigated…

材料科学 · 物理学 2014-03-25 A. Birsan

The field-angular dependence and anisotropy of the critical current density in iron-based superconductors is evaluated using a phenomenological approach featuring distinct anisotropy factors for the penetration depth and the coherence…

超导电性 · 物理学 2015-03-20 Cornelis Jacominus van der Beek , Marcin Konczykowski , Ruslan Prozorov

CeRh6Ge4 is a cerium-based ferromagnetic material exhibiting a quantum critical behavior under pressure. We derive effective exchange interactions, using the framework of density functional theory combined with dynamical mean-field theory.…

强关联电子 · 物理学 2025-11-27 Shoichiro Itokazu , Akimitsu Kirikoshi , Harald O. Jeschke , Junya Otsuki

The anisotropy in the electronic structure of the inherently nanolaminated ternary phase Cr$_{2}$GeC is investigated by bulk-sensitive and element selective soft x-ray absorption/emission spectroscopy. The angle-resolved absorption/emission…

材料科学 · 物理学 2015-10-01 Martin Magnuson , Maurizio Mattesini , Matthieu Bugnet , Per Eklund