arXiv - PHYS - Strongly Correlated Electrons最新文献_第9页

Evidence for spin droplets (ferrons) formation in the heavy fermion metal CeB$_6$ with dynamic charge stripes 具有动态电荷条纹的重费米子金属 CeB$_6$ 中形成自旋液滴（铁氧体）的证据

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04139

A. N. Azarevich, O. N. Khrykina, N. B. Bolotina, V. G. Gridchina, A. V. Bogach, S. V. Demishev, V. N. Krasnorussky, S. Yu. Gavrilkin, A. Yu. Tsvetkov, N. Yu. Shitsevalova, V. V. Voronov, K. I. Kugel, A. L. Rakhmanov, S. Gabani, K. Flachbart, N. E. Sluchanko

{"title":"Evidence for spin droplets (ferrons) formation in the heavy fermion metal CeB$_6$ with dynamic charge stripes","authors":"A. N. Azarevich, O. N. Khrykina, N. B. Bolotina, V. G. Gridchina, A. V. Bogach, S. V. Demishev, V. N. Krasnorussky, S. Yu. Gavrilkin, A. Yu. Tsvetkov, N. Yu. Shitsevalova, V. V. Voronov, K. I. Kugel, A. L. Rakhmanov, S. Gabani, K. Flachbart, N. E. Sluchanko","doi":"arxiv-2409.04139","DOIUrl":"https://doi.org/arxiv-2409.04139","url":null,"abstract":"The presented studies of resistivity (R), thermal conductivity (k) and\u0000specific heat (C) at low temperature 1.8-7 K in magnetic field up to 90 kOe\u0000made it possible to detect for the first time the exponential field dependences\u0000R(H), 1/k(H), $C(H) sim exp(-{mu}_{rm eff}H/kBT)$ of the charge transport\u0000and thermal characteristics in the so-called antiferroquadrupole (AFQ) phase of\u0000the archetypal heavy-fermion CeB$_6$ hexaboride. From magnetoresistance\u0000measurements it is shown that in the AFQ state the effective magnetic moment\u0000varies in the range ${mu}_{rm eff}(T) = 1.4$-1.9$mu$B, and its value is very\u0000close to ${mu}_{rm eff}(tau)(T) = 2{mu}$B, derived from the field\u0000dependence of the relaxation time $|tau(H)$ observed in the heat capacity and\u0000thermal conductivity experiments. The phenomenological model proposed here\u0000allowed us to attribute the magnetic moments to spin droplets (ferrons), that\u0000appear in the bulk AFQ phase of CeB$_6$ crystals. The relevant electron phase\u0000separation at the nanoscale, manifested by dynamic charge stripes, that leads\u0000to the formation of ferrons, was revealed from the analysis of low-temperature\u0000X-ray diffraction experiments using the maximum entropy method. We argue that\u0000the Jahn-Teller collective mode of B$_6$ clusters is responsible for the charge\u0000stripe formation, which subsequently induces transverse quasi-local vibrations\u0000of Ce ions in the form of pairs and triples. These lead to 4f-5d spin\u0000fluctuations providing spin-polarons (ferrons) in the CeB$_6$ matrix.","PeriodicalId":501171,"journal":{"name":"arXiv - PHYS - Strongly Correlated Electrons","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04062

Yuichi Seki, Yuki K. Wakabayashi, Takahito Takeda, Kohdai Inagaki, Shin-ichi Fujimori, Yukiharu Takeda, Atsushi Fujimori, Yoshitaka Taniyasu, Hideki Yamamoto, Yoshiharu Krockenberger, Masaaki Tanaka, Masaki Kobayashi

引用次数: 0

Classical $mathbb{Z}_2$ spin liquid on the generalized four-color Kitaev model 广义四色基塔耶夫模型上的经典 $mathbb{Z}_2$ 自旋液体

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04061

Han Yan, Rico Pohle

引用次数: 0

High harmonic spectroscopy reveals anisotropy of the Mott to Charge-Density-Wave phase transition in TiSe$_2$ 高次谐波光谱揭示 TiSe$_2$ 中莫特到电荷密度波相变的各向异性

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04216

Igor Tyulnev, Lin Zhang, Lenard Vamos, Julita Poborska, Utso Bhattacharya, Ravindra W. Chhajlany, Tobias Grass, Samuel Mañas-Valero, Eugenio Coronado, Maciej Lewenstein, Jens Biegert

引用次数: 0

Nonperturbative Nonlinear Transport in a Floquet-Weyl Semimetal Floquet-Weyl 半金属中的非微扰非线性传输

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04531

Matthew W. Day, Kateryna Kusyak, Felix Sturm, Juan I. Aranzadi, Hope M. Bretscher, Michael Fechner, Toru Matsuyama, Marios H. Michael, Benedikt F. Schulte, Xinyu Li, Jesse Hagelstein, Dorothee Herrmann, Gunda Kipp, Alex M. Potts, Jonathan M. DeStefano, Chaowei Hu, Yunfei Huang, Takashi Taniguchi, Kenji Watanabe, Guido Meier, Dongbin Shin, Angel Rubio, Jiun-Haw Chu, Dante M. Kennes, Michael A. Sentef, James W. McIver

{"title":"Nonperturbative Nonlinear Transport in a Floquet-Weyl Semimetal","authors":"Matthew W. Day, Kateryna Kusyak, Felix Sturm, Juan I. Aranzadi, Hope M. Bretscher, Michael Fechner, Toru Matsuyama, Marios H. Michael, Benedikt F. Schulte, Xinyu Li, Jesse Hagelstein, Dorothee Herrmann, Gunda Kipp, Alex M. Potts, Jonathan M. DeStefano, Chaowei Hu, Yunfei Huang, Takashi Taniguchi, Kenji Watanabe, Guido Meier, Dongbin Shin, Angel Rubio, Jiun-Haw Chu, Dante M. Kennes, Michael A. Sentef, James W. McIver","doi":"arxiv-2409.04531","DOIUrl":"https://doi.org/arxiv-2409.04531","url":null,"abstract":"Periodic laser driving, known as Floquet engineering, is a powerful tool to\u0000manipulate the properties of quantum materials. Using circularly polarized\u0000light, artificial magnetic fields, called Berry curvature, can be created in\u0000the photon-dressed Floquet-Bloch states that form. This mechanism, when applied\u0000to 3D Dirac and Weyl systems, is predicted to lead to photon-dressed movement\u0000of Weyl nodes which should be detectable in the transport sector. The transport\u0000response of such a topological light-matter hybrid, however, remains\u0000experimentally unknown. Here, we report on the transport properties of the\u0000type-II Weyl semimetal T$mathrm{_d}$-MoTe$_mathrm{2}$ illuminated by a\u0000femtosecond pulse of circularly polarized light. Using an ultrafast\u0000optoelectronic device architecture, we observed injection currents and a\u0000helicity-dependent anomalous Hall effect whose scaling with laser field\u0000strongly deviate from the perturbative laws of nonlinear optics. We show using\u0000Floquet theory that this discovery corresponds to the formation of a magnetic\u0000Floquet-Weyl semimetal state. Numerical ab initio simulations support this\u0000interpretation, indicating that the light-induced motion of the Weyl nodes\u0000contributes substantially to the measured transport signals. This work\u0000demonstrates the ability to generate large effective magnetic fields ($>$ 30T)\u0000with light, which can be used to manipulate the magnetic and topological\u0000properties of a range of quantum materials.","PeriodicalId":501171,"journal":{"name":"arXiv - PHYS - Strongly Correlated Electrons","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large Anomalous Hall Conductivity Derived from an $f$-Electron Collinear Antiferromagnetic Structure 从 $f$ 电子共线反铁磁结构推导出的大反常霍尔电导率

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04071

Hisashi Kotegawa, Hiroto Tanaka, Yuta Takeuchi, Hideki Tou, Hitoshi Sugawara, Junichi Hayashi, Keiki Takeda

引用次数: 0

High-field magnetic phase diagrams of the $textit{R}$Mn$_6$Sn$_6$ kagome metals $textit{R}$Mn$_6$Sn$_6$神户金属的高场磁相图

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04273

Fangqi Li, Thais Victa-Trevisan, R. J. McQueeney

引用次数: 0

Pressure induced quasi-long-range $sqrt{3} times sqrt{3}$ charge density wave and competing orders in the kagome metal FeGe 压力诱导的准长程 $sqrt{3}卡戈米金属铁锗中的电荷密度波和竞争阶次

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04325

A. Korshunov, A. Kar, C. -Y. Lim, D. Subires, J. Deng, Y. Jiang, H. Hu, D. Călugăru, C. Yi, S. Roychowdhury, C. Shekhar, G. Garbarino, P. Törmä, C. Felser, B. Andrei Bernevig, S. Blanco-Canosa

{"title":"Pressure induced quasi-long-range $sqrt{3} times sqrt{3}$ charge density wave and competing orders in the kagome metal FeGe","authors":"A. Korshunov, A. Kar, C. -Y. Lim, D. Subires, J. Deng, Y. Jiang, H. Hu, D. Călugăru, C. Yi, S. Roychowdhury, C. Shekhar, G. Garbarino, P. Törmä, C. Felser, B. Andrei Bernevig, S. Blanco-Canosa","doi":"arxiv-2409.04325","DOIUrl":"https://doi.org/arxiv-2409.04325","url":null,"abstract":"Electronic ordering is prevalent in correlated systems, which commonly\u0000exhibit competing interactions. Here, we use x-ray diffraction to show that the\u0000charge density wave transition temperature of FeGe increases with pressure and\u0000evolves towards a $sqrt{3}timessqrt{3}$ periodic lattice modulation,\u0000$mathbf{q}$$^*$=$left(frac{1}{3} frac{1}{3} frac{1}{2}right)$. In the\u0000pressure interval between 4$<$$p$$<$12 GPa both orders coexist and the spatial\u0000extent of the $sqrt{3}timessqrt{3}$ order at high pressure becomes nearly\u0000long-range, $sim$30 unit cells, while the correlation length of the 2$times$2\u0000phase remains shorter-ranged. The $sqrt{3}timessqrt{3}$ phase is the ground\u0000state above 15 GPa, consistent with harmonic DFT calculations that predict a\u0000dimerization induced $sqrt{3}timessqrt{3}$ order without phonon softening.\u0000The pressure dependence of the integrated intensities of\u0000$mathbf{q}$$_mathrm{CDW}=left(frac{1}{2} 0 frac{1}{2}right)$ and\u0000$mathbf{q}$$^*$ indicates a competition between the 2$times$2 and\u0000$sqrt{3}timessqrt{3}$ and demonstrates that the ground state of FeGe is\u0000characterized by a rich landscape of metastable/fragile phases. We discuss\u0000possible scenarios based on an order-disorder transformation and the formation\u0000of Friedel oscillations.","PeriodicalId":501171,"journal":{"name":"arXiv - PHYS - Strongly Correlated Electrons","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mott materials: unsuccessful metals with a bright future 莫特材料：前途光明的不成功金属

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04154

Alessandra Milloch, Michele Fabrizio, Claudio Giannetti

引用次数: 0

High-Throughput Search and Prediction of Layered 4f-Materials 层状 4f 材料的高通量搜索与预测

arXiv - PHYS - Strongly Correlated Electrons Pub Date : 2024-09-06 DOI: arxiv-2409.04632

Lin Hou, Ying Wai Li, Christopher Lane

{"title":"High-Throughput Search and Prediction of Layered 4f-Materials","authors":"Lin Hou, Ying Wai Li, Christopher Lane","doi":"arxiv-2409.04632","DOIUrl":"https://doi.org/arxiv-2409.04632","url":null,"abstract":"The development of multifunctional devices calls for the discovery of new\u0000layered materials with novel electronic properties. f-electron systems\u0000naturally host a rich set of competing and intertwining phases owning to the\u0000presence of strong spin-orbit coupling, electron-electron interactions, and\u0000hybridization between itinerant and local electrons. However, very little\u0000attention has been devoted to exploring the f-electron family of compounds for\u0000new promising layered material candidates. Here, we identify 295 rare earth\u0000compounds from across the lanthanide series of elements that exhibit a spectrum\u0000of lattice symmetries and electronic properties. In particular, we find\u0000metallic compounds and insulating systems with band gaps covering a 0.1 eV to\u00005.3 eV range which opens new possibilities in infrared quantum sensors,\u0000designer photocatalysts, and tunable transistors. The inclusion of 4f-states in\u0000a layered system also suggests the possibility of 2D confined heavy-fermion\u0000superconductivity and topological semimetals. Our study serves as a springboard\u0000to further systematic theoretical investigation of correlation-driven\u0000properties of the 4f and other 2D materials composed of heavy elements.","PeriodicalId":501171,"journal":{"name":"arXiv - PHYS - Strongly Correlated Electrons","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0