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We report the experimental and the analytical results of electron spin resonance (ESR) and magnetization in high magnetic fields up to about 68 T of the quasi two-dimensional triangular lattice antiferromagnet NiGa$_2$S$_4$. From the…

To optimize the processing conditions for the (Cr,Fe)S non-equilibrium phase with a pyrrhotite-type structure, the phase states and magnetic properties of the specimens obtained at various sintering temperatures were investigated. A…

The spin dynamics and magnetic excitations of the slightly distorted triangular s = 3/2 system alpha-CaCr2O4 are investigated by means of Raman spectroscopy and electron spin resonance (ESR) to elucidate its peculiar magnetic properties.…

We have grown RFe2Ge2 single crystals for R = Y and ten members of the lanthanide series (Pr, Nd, Sm, Gd-Tm, Lu) using Sn flux as the solvent. The method yields clean, high quality crystal plates as evidenced by residual resistivities and…

Strongly Correlated Electrons · Physics 2009-11-10 M. A. Avila , S. L. Bud'ko , P. C. Canfield

We introduce the rare-earth delafossite compound TlYbSe$_2$ -- extending the search for quantum spin liquids in frustrated triangular lattice magnets. While the DC magnetisation suggests magnetic exchange interactions in the order of…

Strongly Correlated Electrons · Physics 2025-09-16 Bishnu P. Belbase , Arjun Unnikrishnan , Shi Feng , Eun Sang Choi , Johannes Knolle , Arnab Banerjee

Frustrated three dimensional quantum magnets are notoriously impervious to theoretical analysis. Here we use a combination of three computational methods to investigate the three dimensional pyrochlore $S=1/2$ quantum antiferromagnet, an…

Strongly Correlated Electrons · Physics 2020-08-10 Robin Schäfer , Imre Hagymási , Roderich Moessner , David J. Luitz

The subtle interplay between competing degrees of freedom, crystal electric fields, and spin correlations can lead to exotic quantum states in 4f ion-based frustrated triangular lattice antiferromagnets. We present the crystal structure,…

Strongly Correlated Electrons · Physics 2026-03-17 M. Barik , J. Khatua , Suyoung Kim , Eundeok Mun , Suheon Lee , Bassam Hitti , Gerald D. Morris , Kwang-Yong Choi , P. Khuntia

Two-dimensional (2D) chromium telluride Cr2Te3 exhibits strong ferromagnetic ordering with high coercivity at low temperatures and paramagnetic behaviour when approaching room temperature. The spin states of monolayer Cr2Te3 show…

Er2Ti2O7 is believed to be a realization of an XY antiferromagnet on a frustrated lattice of corner-sharing regular tetrahedra. It is presented as an example of the order-by-disorder mechanism in which fluctuations lift the degeneracy of…

Strongly Correlated Electrons · Physics 2012-09-28 P. Dalmas de Reotier , A. Yaouanc , Y. Chapuis , S. H. Curnoe , B. Grenier , E. Ressouche , C. Marin , J. Lago , C. Baines , S. R. Giblin

We study a model which could explain some of the unusual magnetic properties observed for the one-dimensional helical spin system Co(hfac)_2 NITPhOMe. One of the properties observed is that the magnetization shows plateaus near zero and…

Statistical Mechanics · Physics 2009-11-10 V. Ravi Chandra , S. Ramasesha , Diptiman Sen

Rare-earth (RE) based frustrated magnets as typical systems of combining strong spin-orbit coupling, geometric frustration and anisotropic exchange interactions, can give rise to diverse exotic magnetic ground states such as quantum spin…

Two-dimensional triangular-lattice materials with spin-1/2 are perfect platforms for investigating quantum frustrated physics with spin fluctuations. Here we report the structure, magnetization, heat capacity and inelastic neutron…

Strongly Correlated Electrons · Physics 2019-12-17 Jie Xing , Liurukara D. Sanjeewa , Jungsoo Kim , G. R. Stewart , Andrey Podlesnyak , Athena S. Sefat

We present a comprehensive investigation into the physical properties of intermetallic ErPd$_2$Si$_2$, a compound renowned for its intriguing magnetic and electronic characteristics. We confirm the tetragonal crystal structure of…

Strongly Correlated Electrons · Physics 2024-12-30 Kaitong Sun , Si Wu , Guanping Xu , Lingwei Li , Hongyu Chen , Qian Zhao , Muqing Su , Wolfgang Schmidt , Chongde Cao , Hai-Feng Li

We report the magnetic properties of the quantum triangular lattice antiferromagnet (TLAF) PrMgAl11O19 through magnetization and specific heat measurements. Strong magnetic anisotropy indicates the realization of an Ising-like magnetism in…

Strongly Correlated Electrons · Physics 2025-04-30 S. Kumar , M. Klicpera , A. Eliáš , M. Kratochvílová , K. Załęski , M. Śliwińska-Bartkowiak , R. H. Colman , G. Bastien

SrCuTe$_2$O$_6$ consists of a 3-dimensional arrangement of spin-$\frac{1}{2}$ Cu$^{2+}$ ions. The 1st, 2nd and 3rd neighbor interactions respectively couple Cu$^{2+}$ moments into a network of isolated triangles, a highly frustrated…

Strongly Correlated Electrons · Physics 2021-01-04 S. Chillal , A. T. M. N Islam , H. Luetkens , E. Canévet , Y. Skourski , D. Khalyavin , B. Lake

We propose two-dimensional (2D) Ising-type ferromagnetic semiconductors TcSiTe3, TcGeSe3, and TcGeTe3 with high Curie temperatures around 200-0500 K. Owing to large spin-orbit couplings, the large magnetocrystalline anisotropy energy (MAE),…

Materials Science · Physics 2020-01-07 Jing-Yang You , Zhen Zhang , Xue-Juan Dong , Bo Gu , Gang Su

Cr2Ge2Te6 has been of interest for decades, as it is one of only a few naturally forming ferromagnetic semiconductors. Recently, this material has been revisited due to its potential as a 2 dimensional semiconducting ferromagnet and a…

Materials Science · Physics 2016-05-02 Yao Tian , Mason J. Gray , Huiwen Ji , R. J. Cava , Kenneth S. Burch

The discoveries of two-dimensional ferromagnetism and magnetic semiconductors highly enrich the magnetic material family for constructing spin-based electronic devices but with an acknowledged challenge that the Curie temperature (Tc) is…

Self-intercalated chromium tellurides Cr1+xTe2 have garnered growing attention due to their high-temperature ferromagnetism, tunable spin structures and air stability, all of which are vital for versatile applications in next-generation…

We synthesized a quasi-two-dimensional distorted triangular lattice antiferromagnet Ca$_3$CoNb$_2$O$_9$, in which the effective spin of Co$^{2+}$ is 1/2 at low temperatures, whose magnetic properties were studied by dc susceptibility and…

Strongly Correlated Electrons · Physics 2015-12-25 J. Dai , P. Zhou , P. S. Wang , F. Pang , T J. Munsie , G. M. Luke , J. S. Zhang , Weiqiang Yu