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CuSiO_3, isotypic to the spin - Peierls compound CuGeO_3, was discovered recently as a metastable decomposition product of the silicate mineral dioptase, Cu_6Si_6O_{18}\cdot6H_2O. We investigated the physical properties of CuSiO_3 using…

强关联电子 · 物理学 2009-10-31 M. Baenitz , C. Geibel , M. Dischner , G. Sparn , F. Steglich , H. H. Otto , M. Meibohm , A. A. Gippius

We report a high-resolution neutron diffraction study of the crystal and magnetic structure of the orbitally-degenerate frustrated metallic magnet AgNiO2. At high temperatures the structure is hexagonal with a single crystallographic Ni…

强关联电子 · 物理学 2009-11-13 E. Wawrzynska , R. Coldea , E. M. Wheeler , T. Sorgel , M. Jansen , R. M. Ibberson , P. G. Radaelli , M. M. Koza

We used single-crystal x-ray and neutron diffraction to investigate the crystal and magnetic structures of trigonal lattice iridate Ca2Sr2IrO6. The crystal structure is determined to be $R\bar3$ with two distinct Ir sites. The system…

The Co$_2$Ge$_2$Te$_6$ shows intrinsic ferromagnetic (FM) order, which origins from superexchange interaction between Co and Te atoms, with higher Curie temperature ($T_c$) of 161 K. Co$_2$Ge$_2$Te$_6$ monolayer (ML) is half-metal (HM), and…

材料科学 · 物理学 2022-07-06 Zhaoyong Guan , Ziyuan An , Yuzheng Jiang , Ya Su , Yanyan Jiang , Shuang Ni

We report a detailed magnetic, dielectric and Raman studies on partially disordered and biphasic double perovskite La2NiMnO6. DC and AC magnetic susceptibility measurements show two magnetic anomalies at TC1 ~ 270 K and TC2 ~ 240 K, which…

材料科学 · 物理学 2015-06-18 Pradeep Kumar , S. Ghara , B. Rajeswaran , D. V. S. Muthu , A. Sundaresan , A. K. Sood

Recently, the mixed transition metal oxides of the form Li(Ni1-y-zCoyMnz)O2, have become the center of attention as promising candidates for novel battery material. These materials have also revealed very interesting magnetic properties due…

强关联电子 · 物理学 2013-07-30 J. Magnus Wikberg , Martin Mansson , Mohammed Dahbi , Kazuya Kamazawa , Jun Sugiyama

Polycrystalline samples of the Y-diluted antiferromagnet CeNiGe3 (T_N = 5.5 K) and Th-diluted ferromagnet UNiSi2 (T_C = 95 K) were studied by means of x-ray powder diffraction, magnetization and specific heat measurements performed in a…

强关联电子 · 物理学 2012-06-21 Adam P. Pikul

We analyze recent experiments on the dilute rare-earth compound LiHo_xY_(1-x)F_4 in the context of an effective Ising dipolar model. Using a Monte Carlo method we calculate the low-temperature behavior of the specific heat and linear…

统计力学 · 物理学 2008-10-27 A. Biltmo , P. Henelius

^{139}La NMR measurements of La_{2/3}Ca_{1/3}MnO_3 performed in the paramagnetic state and high magnetic fields are reported. Analysis of the high temperature spectrum measured establishes that the spectrum it is a standard powder pattern…

强关联电子 · 物理学 2009-10-31 K. E. Sakaie , C. P. Slichter , P. Lin , M. Jaime , M. B. Salamon

We report the magnetization ($\chi$, $M$), specific heat ($C_{\text{P}}$), and neutron powder diffraction results on a quasi-two-dimensional $S$ = 2 square lattice antiferromagnet Ba$_2$FeSi$_2$O$_7$ consisting of FeO$_4$ tetragons with a…

SrTiO3 plays a central role in oxide electronics. It is the substrate of choice for functional oxide heterostructures based on perovskite-structure thin-film stacks, and its surface or interface with a polar oxide such as LaAlO3 can become…

材料科学 · 物理学 2016-10-12 J. M. D. Coey , M Venkatesan , P Stamenov

Structural and magnetic properties of a two-dimensional spin-$\frac{5}{2}$ frustrated triangular lattice antiferromagnet NH$_{4}$Fe(PO$_{3}$F)$_2$ are explored via x-ray diffraction, magnetic susceptibility, high-field magnetization, heat…

材料科学 · 物理学 2025-02-11 S. Mohanty , K. M. Ranjith , C. S. Saramgi , Y. Skourski , B. Büchner , H. -J. Grafe , R. Nath

We have synthesized magnesium cage compounds $R$Ni$_{2}$Mg$_{20}$ ($R$ = Pr and Nd). We report the measurements of electrical resistivity $\rho$, magnetic susceptibility $\chi$, isothermal magnetization $M$, and specific heat $C$.…

强关联电子 · 物理学 2021-10-12 Yuka Kusanose , Takahiro Onimaru , Yu Yamane , Kazunori Umeo , Toshiro Takabatake

Two-dimensional magnetic materials attract a lot of attention since they potentially exhibit new magnetic properties due to, e.g., strongly enhanced spin fluctuations. However, the suppression of the long-range magnetic order in two…

强关联电子 · 物理学 2024-06-25 Michal Kiaba , Andreas Suter , Zaher Salman , Thomas Prokscha , Binbin Chen , Gertjan Koster , Adam Dubroka

After the discovery of the ARECh2 (A=alkali or monovalent ions, RE=rare-earth, Ch= chalcogen) triangular lattice quantum spin liquid (QSL) family, a series of its oxide, sulfide, and selenide counterparts has been consistently reported and…

强关联电子 · 物理学 2024-08-20 Weiwei Liu , Zheng Zhang , Dayu Yan , Jianshu Li , Zhitao Zhang , Jianting Ji , Feng Jin , Youguo Shi , Qingming Zhang

In an attempt to destabilize the magnetic state of the heavy lanthanides Dy and Gd, extreme pressures were applied in an electrical resistivity measurement to 157 GPa over the temperature range 5 - 295 K. The magnetic ordering temperature…

强关联电子 · 物理学 2015-06-19 J. Lim , G. Fabbris , D. Haskel , J. S. Schilling

The magnetic properties of GdBaMn_{2}O_{5.0}, which exhibits charge ordering, are studied from 2 to 400 K using single crystals. In a small magnetic field applied along the easy axis, the magnetization M shows a temperature-induced reversal…

材料科学 · 物理学 2009-11-13 A. A. Taskin , Yoichi Ando

Here we report a new quasi-one-dimensional $S$ = 1 chain compound NiTe$_{2}$O$_{5}$. From the comprehensive study of the structure and magnetic properties on high quality single crystalline NiTe$_{2}$O$_{5}$, it's revealed that…

We report magnetic behavior of two intermetallics-based kagome lattices, Tb3Ru4Al12 and Er3Ru4Al12, crystallizing in the Gd3Ru4Al12-type hexagonal crystal structure, by measurements in the range 1.8-300 K with bulk experimental techniques…

强关联电子 · 物理学 2017-08-02 Sanjay Kumar Upadhyay , Kartik K Iyer , E. V. Sampathkumaran

The recent discoveries of proximate quantum spin-liquid compounds and their potential application in quantum computing informs the search for new candidate materials for quantum spin-ice and spin-liquid physics. While the majority of such…

强关联电子 · 物理学 2019-01-16 K. M. Taddei , L. Sanjeewa , J. W. Kolis , A. S. Sefat , C. de la Cruz , D. M. Pajerowski