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Magnetism of Cu$_2$(OH)$_3$Br single crystals based on a triangular lattice is studied by means of magnetic susceptibility, pulsed-field magnetization, and specific heat measurements. There are two inequivalent Cu$^{2+}$ sites in an…

强关联电子 · 物理学 2019-09-04 Z Y Zhao , H L Che , R Chen , J F Wang , X F Sun , Z Z He

Here, we report both ac and dc magnetization, thermodynamic and electric properties of hexagonal Ba$_3$NiIr$_2$O$_9$. The Ni$^{2+}$ (spin-1) forms layered triangular-lattice and interacts antiferromagnetically while Ir$^{5+}$ is believed to…

强关联电子 · 物理学 2021-07-14 Shobha Gondh , Manju Mishra Patidar , Kranti Kumar , M. P. Saravanan , V. Ganesan , A. K. Pramanik

The antiferromagnetic heavy-fermion compound Ce$_2$RhIn$_8$ belongs to the same family and bears similarities with the well-studied prototypical material CeRhIn$_5$, which demonstrates a unique behavior under applied magnetic field. Here,…

强关联电子 · 物理学 2025-05-19 T. Klein , C. Marcenat , A. Demuer , J. Sarrade , D. Aoki , I. Sheikin

We performed high-field magnetization, magnetocaloric effect (MCE), and NMR measurements on the Ising triangular-lattice antiferromagnet Rb$_2$Co(SeO$_3$)$_2$. The observations of the 1/3-magnetization plateau, the split NMR lines, and the…

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…

强关联电子 · 物理学 2015-12-25 J. Dai , P. Zhou , P. S. Wang , F. Pang , T J. Munsie , G. M. Luke , J. S. Zhang , Weiqiang Yu

The magnetic phase diagram and the thermodynamic properties of a square lattice containing antiferromagnetically coupled spin-1/2 triangles are studied. A Heisenberg Hamiltonian with three strong intra-triangle exchange coupling constants…

强关联电子 · 物理学 2009-10-31 Stefan Wessel , Stephan Haas

Frustration, spin correlations and interplay between competing degrees of freedom are some of the key ingredients that underlie exotic states with fractional excitations in quantum materials. Rare-earth based two dimensional magnetic…

强关联电子 · 物理学 2022-09-13 J. Khatua , M. Pregelj , A. Elghandour , Z. Jaglicic , R. Klingeler , A. Zorko , P. Khuntia

The quantum phase transition between paramagnetic and antiferromagnetic phases of the Kondo lattice model with Ising anisotropy in the intersite exchange is studied within the framework of extended dynamical mean-field theory.…

强关联电子 · 物理学 2007-12-03 Matthew T. Glossop , Kevin Ingersent

We present first specific-heat data of the alloy Yb(Rh_(1-x)Co_x)_2Si_2 at intermediate Co-contents x=0.18, 0.27, and 0.68. The results already point to a complex magnetic phase diagram as a function of composition. Co-doping of YbRh_2Si_2…

强关联电子 · 物理学 2010-03-03 C. Klingner , C. Krellner , C. Geibel

The ground state of the stacked triangular antiferromagnet CsFeBr$_3$ is a spin singlet due to the large single ion anisotropy $D(S^z)^2$. The field-induced magnetic ordering in this compound was investigated by the magnetic susceptibility,…

强关联电子 · 物理学 2009-11-07 Y. Tanaka , H. Tanaka , T. Ono , A. Oosawa , K. Morishita , K. Iio , T. Kato , H. Aruga Katori , M. Bartashevich , T. Goto

We report a 139La-NMR study of Ba2La2CoTe2O12, S = 1/2 equilateral triangular-lattice antiferromagnet with easy-plane anisotropy at low temperatures. This compound undergoes a magnetic phase transition at TN = 3.26 K into an ordered state…

The magnetic H - T phase diagram of a quasi-two-dimensional easy plane antiferromagnet RbFe(MoO$_4$)$_2$ (S = 5/2) with an equilateral triangular lattice structure is studied with $^{87}$Rb NMR technique for field directed along hard axis…

强关联电子 · 物理学 2023-12-14 Yu. A. Sakhratov , L. E. Svistov , A. P. Reyes

Magnetic properties of $M_{c}$Ta$_{2}$S$_{2}$C ($M$ = Fe, Co, Ni, Cu) have been studied using SQUID DC and AC magnetic susceptibility. In these systems magnetic $M^{2+}$ ions are intercalated into van der Waals gaps between adjacent S…

超导电性 · 物理学 2008-10-02 Masatsugu Suzuki , Itsuko S. Suzuki , Jürgen Walter

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,…

In our study, we conduct magnetization and heat capacity measurements to investigate field induced magnetic phase transitions within the newly synthesized compound K2Ni2(SeO3)3, a spin-1 dimer system arranged on a triangular lattice. From…

强关联电子 · 物理学 2024-05-30 Lei Yue , Ziyou Lu , Kun Yan , Le Wang , Shu Guo , Ruixin Guo , Peng Chen , Xiaobin Chen , Jia-Wei Mei

A detailed study of the magnetic and magnetocaloric properties of a garnet compound Mn$_{3}$Cr$_{2}$Ge$_{3}$O$_{12}$ is carried out using x-ray diffraction, magnetization, heat capacity, and neutron diffraction measurements as well as…

强关联电子 · 物理学 2024-03-14 S. Mohanty , A. Magar , Vikram Singh , S. S. Islam , S. Guchhait , A. Jain , S. M. Yusuf , A. A. Tsirlin , R. Nath

The rare-earth intermetallic compound Ho$_5$Sn$_3$ demonstrates fascinating magnetic properties which include temperature-driven multiple magnetic transitions and field driven metamagnetism. We address the magnetic character of this…

We present the low-temperature magnetic properties of two Yb$^{3+}$-based triangular lattice compounds NaSrYb(BO$_3$)$_2$ and K$_3$YbSi$_2$O$_7$ via thermodynamic measurements followed by crystal electric field (CEF) calculations.…

材料科学 · 物理学 2025-01-27 S. Guchhait , R. Kolay , A. Magar , R. Nath

We report a detailed study of the magnetic properties of KBaGd(BO$_3$)$_2$, in which magnetic Gd$^{3+}$ ($S=7/2$) ions form into two-dimensional triangular layers. Magnetization, specific heat and magnetocaloric effect (MCE) measurements…

强关联电子 · 物理学 2023-03-21 Z. M. Song , N. Zhao , H. Ge , T. T. Li , J. Yang , L. Wang , Y. Fu , Y. Z. Zhang , S. M. Wang , J. W. Mei , H. He , S. Guo , L. S. Wu , J. M. Sheng

We report the results of magnetization and specific heat measurements of Ba$_2$CoTeO$_6$ composed of two subsystems A and B, which are magnetically described as an $S\,{=}\,1/2$ triangular-lattice Heisenberg-like antiferromagnet and a…

强关联电子 · 物理学 2016-03-23 Purintorn Chanlert , Nobuyuki Kurita , Hidekazu Tanaka , Daiki Goto , Akira Matsuo , Koichi Kindo