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In this work, we report the synthesis and investigation of structural, electronic, and magnetic properties of La$_{1.5}$Ca$_{0.5}$(Co$_{0.5}$Fe$_{0.5}$)IrO$_6$. Our polycrystalline sample forms as a single-phase double perovskite in…

The magnetization process of an S=1/2 antiferromagnet on the kagome lattice, [Cu_3(titmb)_2(OCOCH_3)_6]H_2O {titmb= 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6 trimethylbenzene} has been measured at very low temperatures in both pulsed and steady…

Strongly Correlated Electrons · Physics 2009-11-10 Y. Narumi , K. Katsumata , Z. Honda , J. -C. Domenge , P. Sindzingre , C. Lhuillier , Y. Shimaoka , T. C. Kobayashi , K. Kindo

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

We investigate the lattice dynamics in the spin-1/2 frustrated kagome compound herbertsmithite ZnCu$_3$(OH)$_6$Cl$_2$ by a combination of infrared spectroscopy measurements and ab initio density functional theory calculations, and provide…

Strongly Correlated Electrons · Physics 2020-04-29 Ying Li , A. Pustogow , M. Bories , P. Puphal , C. Krellner , M. Dressel , Roser Valenti

Only a few magnetic kagome materials exhibit lattice instabilities among the large kagome material array. In this work, we find that kagome magnets $R$Mn$_6$Sn$_6$ ($R$ = rare-earth elements) and their non-magnetic counterparts…

Strongly Correlated Electrons · Physics 2024-05-22 Hengxin Tan , Binghai Yan

Magnetism in SmPd2Al3 was investigated on a single crystal by magnetometry and neutron diffraction. SmPd2Al3 represents a distinctive example of the Sm magnetism exhibiting complex magnetic behavior at low temperatures with four consecutive…

The study of quantum spin-liquid states (QSL) with lattice dimension $>1$ has proven an enduring problem in solid state physics. Key candidate materials are the $S=\frac{1}{2}$ kagome magnets due to their ability to host quantum…

Materials Science · Physics 2016-10-04 E Connolly , P Reeves , D Boldrin , A S Wills

Superlattices composed of ferromagnetic Pr0.85Ca0.15MnO3 and ferroelectric Ba0.6Sr0.4TiO3 layers were fabricated on (100) SrTiO3 substrates by a pulsed-laser deposition method. The capacitance and resistive parts of the samples were…

Materials Science · Physics 2009-11-10 P. Murugavel , D. Saurel , W. Prellier , Ch. Simon , B. Raveau

Spin-orbit entangled pseudospins hold promise for a wide array of exotic magnetism ranging from a Heisenberg antiferromagnet to a Kitaev spin liquid depending on the lattice and bonding geometry, but many of the host materials suffer from…

Strongly Correlated Electrons · Physics 2022-03-30 Hoon Kim , Joel Bertinshaw , J. Porras , B. Keimer , Jungho Kim , J. -W. Kim , Jimin Kim , Jonghwan Kim , Gahee Noh , Gi-Yeop Kim , Si-Young Choi , B. J. Kim

Rare earth triangular lattice materials have been proposed as a good platform for the investigation of frustrated magnetic ground states. KErSe$_2$ with the delafossite structure, contains perfect two-dimensional Er$^{3+}$ triangular layers…

We report structural and electronic properties of Na$_2$Ni$_3$S$_4$, a quasi-two-dimensional compound composed of alternating layers of [Ni$_3$S$_4$]$^{2-}$ and Na$^{+}$. The compound features a remarkable Ni-based kagome lattice with a…

Strongly Correlated Electrons · Physics 2024-04-19 Junyao Ye , Yihao Lin , Haozhe Wang , Zida Song , Ji Feng , Weiwei Xie , Shuang Jia

We systematically investigate the electronic structure and magnetic properties of two dimensional (2D) MPX$_3$ (M= V, Cr, Mn, Fe, Co, Ni, Cu, Zn, and X = S, Se, Te) transition metal chacogenophosphates to examine their potential role as…

Mesoscale and Nanoscale Physics · Physics 2017-10-02 Bheema Lingam Chittari , Youngju Park , Dongkyu Lee , Moonsup Han , Allan H. MacDonald , Euyheon Hwang , Jeil Jung

Spin-1/2 antiferromagnetic triangular lattice models are paradigms of geometrical frustration, revealing very different ground states and quantum effects depending on the nature of anisotropies in the model. Due to strong spin orbit…

Double perovskites of the form A_2BB'O_6 usually involve a transition metal ion, B, with a large magnetic moment, and a non magnetic ion B'. While many double perovskites are ferromagnetic, studies on the underlying model reveal the…

Strongly Correlated Electrons · Physics 2013-02-07 Rajarshi Tiwari , Pinaki Majumdar

The sawtooth lattice shares some structural similarities with the kagome lattice and may attract renewed research interest. Here, we report a comprehensive study on the physical properties of Fe$_2$SiSe$_4$, an unexplored member in the…

{\alpha}-SrCr2O4 has a triangular planar lattice of d3 Cr3+ made from edge sharing CrO6 octahedra; the plane shows a very small orthorhombic distortion from hexagonal symmetry. With a Weiss temperature of -596 K and a three-dimensional…

Strongly Correlated Electrons · Physics 2011-06-13 S E Dutton , E Climent-Pascual , P W Stephens , J P Hodges , A Huq , C L Broholm , R J Cava

ScFe$_6$Ge$_4$ with the LiFe$_6$Ge$_4$-type structure (space group $R{\bar{3}}m$), which has a double-layered kagome lattice (18$h$ site) of Fe crystallographically equivalent to that of a well-known topological ferromagnet Fe$_3$Sn$_2$, is…

Strongly Correlated Electrons · Physics 2023-12-29 M. A. Kassem , T. Shiotani , H. Ohta , Y. Tabata , T. Waki , H. Nakamura

(TMTTF)$_2$SbF$_6$ is known to undergo a charge ordering (CO) phase transition at $T_{CO}\approx156K$ and another transition to an antiferromagnetic (AF) state at $T_N\approx 8K$. Applied pressure $P$ causes a decrease in both $T_{CO}$ and…

Strongly Correlated Electrons · Physics 2009-11-10 W. Yu , F. Zhang , F. Zamborszky , B. Alavi , A. Baur , C. A. Merlic , S. E. Brown

We present the results of magnetic properties and entanglement for kagome lattice using Heisenberg model with two-, and three-site exchange interactions in strong magnetic field. Kagome lattice correspond to the third layer of fluid 3He…

Statistical Mechanics · Physics 2015-05-27 N. Ananikian , L. Ananikyan , H. Lazaryan

The ground state of a molecular diamond-lattice compound (ET)Ag$_4$(CN)$_5$ is investigated by the magnetization and nuclear magnetic resonance spectroscopy. We found that the system exhibits antiferromagnetic long-range ordering with weak…

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