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We report on negative thermal expansion (NTE) in the high-field, half-magnetization plateau phase of the frustrated magnetic insulator CdCr2O4. Using dilatometry, we precisely map the phase diagram at fields of up to 30T, and identify a…

Strongly Correlated Electrons · Physics 2019-07-15 L. Rossi , A. Bobel , S. Wiedmann , R. Küchler , Y. Motome , K. Penc , N. Shannon , H. Ueda , B. Bryant

We study the magnetization for the classical antiferromagnetic Ising model on the Shastry-Sutherland lattice using the tensor renormalization group approach. With this method, one can probe large spin systems with little finite-size effect.…

Strongly Correlated Electrons · Physics 2009-03-12 Ming-Che Chang , Min-Fong Yang

In the R$\_{3}$Ga$\_{5}$SiO$\_{14}$ compounds, the network R of rare earth cations form well separated planes of corner sharing triangles topologically equivalent to a kagom\'e lattice. Powder samples and single crystals with R = Nd and Pr…

Strongly Correlated Electrons · Physics 2007-05-23 P. Bordet , I. Gelard , K. Marty , A. Ibanez , J. Robert , V. Simonet , B. Canals , R. Ballou , P. Lejay

Motivated by recent developments on altermagnetism, we investigate the Hubbard model on the Shastry-Sutherland lattice, where the onsite repulsion between electrons induces the onset of a staggered magnetic order in which opposite magnetic…

Strongly Correlated Electrons · Physics 2024-11-21 Francesco Ferrari , Roser Valenti

The antiferromagnetic Heisenberg model on the frustrated Shastry-Sutherland lattice is studied by a mapping onto spinless fermions carrying one quantum of statistical flux. Using a mean-field approximation these fermions populate the bands…

Strongly Correlated Electrons · Physics 2009-11-07 G. Misguich , Th. Jolicoeur , S. M. Girvin

We study the magnetic phase diagram of two coupled mixed-spin $(1,{1/2})$ Heisenberg chains as a function of the frustration parameter related to diagonal exchange couplings. The analysis is performed by using spin-wave series and exact…

Strongly Correlated Electrons · Physics 2007-05-23 N. B. Ivanov , J. Richter

Neutron scattering experiment on NiS2 single crystal revealed a honeycomb pattern of the intensity distribution in reciprocal lattice space (continuous-line structure along the fcc zone boundary) providing the first direct evidence for…

Strongly Correlated Electrons · Physics 2007-05-23 M. Matsuura , Y. Endoh , H. Hiraka , K. Yamada , K. Hirota , A. S. Mishchenko , N. Nagaosa , I. V. Solovyev

We report the magnetic properties of newly synthesized, single crystals of $\mathrm{TbTi_3Bi_4}$ whose crystal structure is highlighted by the stacking of terbium-based zigzag chains and titanium-based kagome lattices. This compound…

Strongly Correlated Electrons · Physics 2024-05-16 Kaizhen Guo , Zeyu Ma , Hongxiong Liu , Ziyang Wu , Junfeng Wang , Youguo Shi , Yuan Li , Shuang Jia

To examine the properties of the frustrated XY model at an incommensurate field we have examined a sequence of magnetic filling factors f which approach the irrational value of one minus the golden mean. At all f studied, the system…

Statistical Mechanics · Physics 2007-05-23 Colin Denniston , Chao Tang

Low-energy magnetic excitations of the easy-axis antiferromagnet TbFe$_3$(BO$_3$)$_4$ are investigated by far-infrared absorption and reflection spectroscopy in high magnetic fields up to 30 T. The observed field dependence of the resonance…

Motivated by the ever-increasing experimental effort devoted to the properties of frustrated quantum magnets in a magnetic field, we present a careful and detailed theoretical analysis of a one-dimensional version of this problem, a…

Strongly Correlated Electrons · Physics 2007-05-23 J. -B. Fouet , F. Mila , D. Clarke , H. Youk , O. Tchernyshyov , P. Fendley , R. M. Noack

The competing spin orders and fractional magnetization plateaus of classical Heisenberg model with long-range interactions on a Shastry-Sutherland lattice are investigated using Monte Carlo simulations, in order to understand the…

Strongly Correlated Electrons · Physics 2015-06-12 Liu Huo , Weichuan Huang , Zhibo Yan , Xingtao Jia , Xingsen Gao , Minghui Qin , Junming Liu

Direct detection of spontaneous spin fluctuations, or "magnetization noise", is emerging as a powerful means of revealing and studying magnetic excitations in both natural and artificial frustrated magnets. Depending on the lattice and…

Mesoscale and Nanoscale Physics · Physics 2023-11-15 M. Goryca , X. Zhang , J. Ramberger , J. D. Watts , C. Nisoli , C. Leighton , P. Schiffer , S. A. Crooker

Kondo metals with geometric frustration offer fertile ground for exploring exotic states of matter with a field-induced fractional magnetization platform and nonsaturating magnetoresistance. Herein, a Ce3ScBi5 single crystal with…

Strongly Correlated Electrons · Physics 2025-11-14 Zhongchen Xu , Yaxian Wang , Cuiwei Zhang , Hongxiong Liu , Xin Han , Liusuo Wu , Xianmin Zhang , Quansheng Wu , Youguo Shi

We report on a comprehensive thermodynamic study of a quasi-two-dimensional (quasi-2D) quantum magnet Cu$_2$(OH)$_3$Br which in the 2D layer can be viewed as strongly coupled alternating antiferromagnetic and ferromagnetic chains. In an…

Thermodynamic properties of cubic Heisenberg ferromagnets with competing exchange interactions are considered near the frustration point where the coefficient $D$ in the spin-wave spectrum $E_{\mathbf{k}}\sim D k^{2}$ vanishes. Within the…

Strongly Correlated Electrons · Physics 2015-04-21 A. N. Ignatenko , A. A. Katanin , V. Yu. Irkhin

Spintronics has emerged as a field of vast applicability, and layered magnetic materials have served as a ground for advancement in this direction. Here, we report the synthesis and detailed magnetic and specific heat studies on NdSbSe, (a…

Strongly Correlated Electrons · Physics 2025-01-22 Prabuddha Kant Mishra , Priyanka Nehla , Rishabh Shukla , Rie Umetsu , Ashok Kumar Ganguli

A spin-orbital chain with different Land\'e $g$ factors and one-ion anisotropy is studied in the context of the thermodynamical Bethe ansatz. It is found that there exists a magnetization plateau resulting from the different Land\'e $g$…

Strongly Correlated Electrons · Physics 2009-11-10 Zu-Jian Ying , Angela Foerster , Xi-Wen Guan , Bin Chen , Itzhak Roditi

Imaging the magnetic fields around a non-magnetic impurity can provide a clear benchmark for quantifying the degree of magnetic frustration. Focusing on the strongly frustrated $J_1$-$J_2$ model and the spatially anisotropic…

Strongly Correlated Electrons · Physics 2011-04-28 C. -C. Chen , R. Applegate , B. Moritz , T. P. Devereaux , R. R. P. Singh

We study the zero-temperature phase diagram of the frustrated square-lattice S=1/2 antiferromagnet in an external magnetic field numerically with the Lanczos algorithm. For strong frustration, we find disordered phases at high (and low)…

Strongly Correlated Electrons · Physics 2009-10-31 A. Honecker