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To study the relationship between the properties of low-dimensional spin systems with weakly coupled Cu-triangles and their crystal structure, single crystals of $Cs_3Cu_3Cl_8OH$ (1) and the new $Cs_3Cu_3Cl_{7.6}Br_{0.4}OH$ (2) were grown.…

Realisation of the tetragonal phase of $Cs_2CuCl_4$ is possible using specific crystal growth conditions at a temperature below $281K$. This work deals with the comparison of the magnetic susceptibility and the magnetization of this new…

We report on a systematic study of the magnetic properties on single crystals of the solid solution Cs$_2$CuCl$_{4-x}$Br$_x$ (0 $\leq$ x $\leq$ 4), which include the two known end-member compounds Cs$_2$CuCl$_4$ and Cs$_2$CuBr$_4$,…

We have carried out $^{63,65}$Cu NMR spectra measurements in magnetic field up to about 45~T on single crystal of a multiferroic triangular antiferromagnet CuCrO$_2$. The measurements were performed for magnetic fields aligned along the…

Strongly Correlated Electrons · Physics 2016-12-21 Yu. A. Sakhratov , L. E. Svistov , P. L. Kuhns , H. D. Zhou , A. P. Reyes

Rare-earth-based permanent-magnet materials rich in iron have relatively low ferromagnetic ordering temperatures. This is believed to be due to the presence of antiferromagnetic exchange interactions, besides the ferromagnetic interactions…

Materials Science · Physics 2009-11-11 Y. Janssen , S. Chang , A. Kreyssig , A. Kracher , Y. Mozharivskyj , S. Misra , P. C. Canfield

Specific heat and magnetization measurements of the compound [Cu2(apyhist)2Cl2](ClO4)2, where apyhist = (4-imidazolyl)ethylene-2-amino-1-ethylpyridine), were used to identify a magnetic-field-induced long-range antiferromagnetic ordered…

Strongly Correlated Electrons · Physics 2017-05-25 R. S. Freitas , W. A. Alves , A. Paduan-Filho

Magnetic ordering phenomena in CexPr1-xB6 solid solutions have been studied using both powder and single-crystal neutron diffraction. A variety of magnetic structures are observed depending on temperature and Ce concentration. Over a broad…

Strongly Correlated Electrons · Physics 2008-07-25 Jean-Michel Mignot , Gilles André , Julien Robert , Masafumi Sera , Fumitoshi Iga

We present a comprehensive magnetic and structural phase diagram for $\mathrm{Y_{1-x}Lu_xBaCo_4O_7}$, established through neutron diffraction and magnetization measurements. Our results outline the evolution of various nuclear structures,…

Strongly Correlated Electrons · Physics 2023-12-08 Sevda Sahinbay , Hong Zheng , John F. Mitchell , Stephan Rosenkranz , Omar Chmaissem

We report a thorough theoretical study of the low temperature phase diagram of Cs_2CuCl_4, a spatially anisotropic spin S=1/2 triangular lattice antiferromagnet, in a magnetic field. Our results, obtained in a quasi-one-dimensional limit in…

Strongly Correlated Electrons · Physics 2015-03-17 Oleg A. Starykh , Hosho Katsura , Leon Balents

We report a detailed examination the magnetic structure of anhydrous cupric chloride CuCl2 carried out by powder neutron diffraction, magnetic susceptibility and specific heat measurements on polycrystalline and single crystal samples as…

Strongly Correlated Electrons · Physics 2009-04-21 M. G. Banks , R. K. Kremer , C. Hoch , A. Simon , B. Ouladdiaf , J. -M. Broto , H. Rakoto , C. Lee , M. -H. Whangbo

In this study the magnetic order of the spin-1/2 XXZ chain system Cs$_2$CoCl$_4$ in a temperature range from 50 mK to 0.5 K and in applied magnetic fields up to 3.5 T is investigated by high-resolution measurements of the thermal expansion…

Strongly Correlated Electrons · Physics 2015-03-13 O. Breunig , M. Garst , A. Rosch , E. Sela , B. Buldmann , P. Becker , L. Bohaty , R. Müller , T. Lorenz

Exploring the uncharacterized magnetic phases of Co$^{2+}$ chain compounds is critical for finding new low-dimensional magnets hosting quantized excitations. We map the unexplored magnetic phases of the Co$^{2+}$ chain compound…

Strongly Correlated Electrons · Physics 2023-10-18 Zachary W. Riedel , Zhihao Jiang , Maxim Avdeev , André Schleife , Daniel P. Shoemaker

Thermodynamic experiments as well as Raman scattering have been used to study the magnetic instabilities in the spin-tetrahedra systems Cu_2Te_2O_5X_2, X=Cl and Br. While the phase transition observed in the Cl system at T_o=18.2 K is…

Strongly Correlated Electrons · Physics 2009-11-07 P. Lemmens , K. -Y. Choi , E. E. Kaul , Ch. Geibel , K. Becker , W. Brenig , R. Valenti , C. Gros , M. Johnsson , P. Millet , F. Mila

An antiferromagnetic ordering in Pb3TeCo3V2O14 takes place through formation of short range correlation regime with T* ~ 10.5 K and succession of second order phase transition at TN1 = 8.9 K and first order phase transition at TN2 = 6.3 K.…

Strongly Correlated Electrons · Physics 2014-04-01 M. M. Markina , B. V. Mill , E. A. Zvereva , A. V. Ushakov , S. V. Streltsov , A. N. Vasiliev

Sr_4Cr_3O_9 is the n = 2 member of a family of quasi-one-dimensional compounds A_{n+2}T_{n+1}O_{3n+3} (A = Ca, Sr, or Ba, T = transition metal, and n = 1 to \infty) having a crystal structure which consists of chains of n TO_6 octahedra…

Strongly Correlated Electrons · Physics 2008-08-26 Yogesh Singh , D. C. johnston

Most of magnetic transitions related to Ce ordering are found below T_ord~12K. Among the few cases exceeding that temperature, two types of behaviors can be distinguished. One of them is related to the rare cases of Ce binary compounds…

Strongly Correlated Electrons · Physics 2015-06-19 J. G. Sereni , P. Pedrazzini , M. Gómez Berisso , A. Chacoma , S. Encina , T. Gruner , N. Caroca-Canales , C. Geibel

The magnetic phase diagram in a single crystal of copper metaborate CuB_2O_4 in a magnetic field parallel to a tetragonal axis $c$ has been investigated. From the resonant, magnetic and magnetostrictive data the phase diagram of CuB_2O_4 on…

Chromium oxychloride is a van der Waals magnet with intrinsic competing exchange interactions, including a strong antiferromagnetic one, source of a very rich magnetic phase diagram, with ferrimagnetic, antiferromagnetic, and canted states,…

Mesoscale and Nanoscale Physics · Physics 2026-03-11 T. Riccardi , A. Pawbake , S. Badola , F. Petot , B. Grémaud , A. Saul , K. Singh , N. R. Nair , R. S. Chemban , Z. Sofer , J. Coraux , C. Faugeras

Magnetic phase diagrams of a tetragonal antiferromagnet TbB$_2$C$_2$ were clarified by temperature and field dependence of magnetization. It is noticeable that the N{\'e}el temperature in TbB$_2$C$_2$ is anomalously enhanced with magnetic…

Strongly Correlated Electrons · Physics 2009-11-07 Koji Kaneko , Hideya Onodera , Hiroki Yamauchi , Takuo Sakon , Mitsuhiro Motokawa , Yasuo Yamaguchi

Field-dependent specific heat and neutron scattering measurements were used to explore the antiferromagnetic S=1/2 chain compound CuCl2 * 2((CD3)2SO). At zero field the system acquires magnetic long-range order below TN=0.93K with an…

Strongly Correlated Electrons · Physics 2009-11-13 Y. Chen , M. B. Stone , M. Kenzelmann , C. D. Batista , D. H. Reich , C. Broholm
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