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We found anomalies in the temperature dependence of the dielectric and the magnetic susceptibiliy of NaV_2O_5 in the microwave and far infrared frequency ranges. The anomalies occur at the phase transition temperature T_c, at which the spin…

Strongly Correlated Electrons · Physics 2009-10-31 A. I. Smirnov , M. N. Popova , A. B. Sushkov , S. A. Golubchik , D. I. Khomskii , M. V. Mostovoy , A. N. Vasil'ev , M. Isobe , Y. Ueda

We report a study of single crystals of the hexagonal rare-earth diboride ErB$_{2}$ prepared by means of the self-adjusted flux travelling-solvent floating-zone technique. Measurements of the magnetization, ac susceptibility, specific heat,…

Strongly Correlated Electrons · Physics 2025-04-30 Christoph Resch , Georg Benka , Andreas Bauer , Christian Pfleiderer

Zero field cooled (ZFC)/Field Cooled (FC) magnetization curves of a bulk MnO single crystal show a peculiar peak at low temperatures (~40K) similar to the low temperature peak observed in MnO nanoparticles. In order to investigate the…

Materials Science · Physics 2017-08-02 X. Sun , E. Feng , Y. Su , K. Nemkovski , O. Petracic , T. Brückel

We have studied the magnetization of CeOs2Al10 in high magnetic fields up to 55 T for H // a and constructed the magnetic phase diagram for H // a. The magnetization curve shows a concave H dependence below T_max \sim40 K which is higher…

We successfully grew the high-quality single crystals of $A_{x}$Fe$_2$Se$_2$ ($A$ = K and Cs) by self-flux method. Sharp superconducting transition was observed for both types of crystals. The crystals show the onset superconducting…

Superconductivity · Physics 2011-07-07 J. J. Ying , X. F. Wang , X. G. Luo , A. F. Wang , M. Zhang , Y. J. Yan , Z. J. Xiang , R. H. Liu , P. Cheng , G. J. Ye , X. H. Chen

We report the crystal growth and structural, magnetic, conductivity, and specific heat investigations of Rb(1-x)Fe(2-y)Se2 single crystals with varying stoichiometry prepared by self-flux and Bridgman methods. The system exhibits a strongly…

Superconductivity · Physics 2011-11-01 V. Tsurkan , J. Deisenhofer , A. Günther , H. -A. Krug von Nidda , S. Widmann , A. Loidl

Spinel chromites ACr$_2$O$_4$ with inherent magnetic geometrical frustration usually exhibit a noncollinear ferrimagnetic ground state when A are magnetic ions, with possibly crystallite-size dependent intriguing magnetic features. Here, we…

Materials Science · Physics 2023-05-30 Mohamed A. Kassem , Abdulaziz Abu El-Fadl , Ahmed M. Nashaat , Hiroyuki Nakamura

We present a study of high-quality BaCo$_2$(PO$_4$)$_2$ single crystals via magnetization, heat-capacity, thermal-expansion and magnetostriction measurements. Sharp anomalies in the thermodynamic properties at $T_N=3.4\,$K reveal a…

Strongly Correlated Electrons · Physics 2023-02-08 Xiao Wang , Rohit Sharma , Petra Becker , Ladislav Bohatý , Thomas Lorenz

The magnetic properties of CeRu$_2$Si$_2$ at microkelvin temperatures (down to 170 $\mu$K) and ultra small magnetic fields ($0.02\sim6.21$ mT) are investigated experimentally for the first time. The simultaneously measured ac susceptibility…

Strongly Correlated Electrons · Physics 2016-08-16 D. Takahashi , S. Abe , H. Mizuno , D. A. Tayurskii , K. Matsumoto , H. Suzuki , Y. Ónuki

We report studies of polycrystalline samples of the metallic ferromagnet Pr0.5Sr0.5CoO3 through measurements of the magnetization, a.c. magnetic susceptibility, resistivity, and specific heat. We find an unusual anomaly around TA = 120 K,…

Materials Science · Physics 2009-11-10 R. Mahendiran , P. Schiffer

Single crystals of $R$Cd$_{0.67}$As$_2$ ($R$ = La and Ce) have been synthesized by high temperature ternary melt and their physical properties have been explored by means of magnetization, specific heat, electrical resistivity, Hall…

Strongly Correlated Electrons · Physics 2023-02-27 Suyoung Kim , Obinna P. Uzoh , Eundeok Mun

In this paper, the magnetic and transport properties were systematically studied for EuAg$_4$As$_2$ single crystals, crystallizing in a centrosymmetric trigonal CaCu$_4$P$_2$ type structure. It was confirmed that two magnetic transitions…

Materials Science · Physics 2022-06-24 Qinqing Zhu , Liang Li , Zhihua Yang , Zhefeng Lou , Jianhua Du , Jinhu Yang , Bin Chen , Hangdong Wang , Minghu Fang

We present measurements of magnetic field and frequency dependences of the low temperature (T = 1.8 K) AC-susceptibility, and temperature and field dependences of the longitudinal field positive muon spin relaxation ({\mu}SR) for…

Strongly Correlated Electrons · Physics 2015-06-05 R. C. Johnson , B. Z. Malkin , J. S. Lord , S. R. Giblin , A. Amato , C. Baines , A. Lascialfari , B. Barbara , M. J. Graf

We report on the single crystal growth and anisotropic physical properties of CeAgAs$_2$. The compound crystallizes as on ordered variant of the HfCuSi$_2$-type crystal structure and adopts the orthorhombic space group $Pmca$~(\#57) with…

Strongly Correlated Electrons · Physics 2018-10-17 Rajib Mondal , Rudheer Bapat , S. K. Dhar , A. Thamizhavel

We report the magnetism and transport measurements of CaCo$_2$As$_2$ and Ca$_{0.9}$Sr$_{0.1}$Co$_2$As$_2$ single crystals. Antiferromagnetic transition was observed at about 70 K and 90 K for CaCo$_2$As$_2$ and…

Strongly Correlated Electrons · Physics 2012-06-15 J. J. Ying , Y. J. Yan , A. F. Wang , Z. J. Xiang , P. Cheng , G. J. Ye , X. H. Chen

The magnetic properties of polycrystalline Tb(Co_{x}Ni_{1-x})_{2}B_{2}C (x=0.2,0.4,0.6,0.8) samples were probed by magnetization, specific heat, ac susceptibility, and resistivity techniques. For x{\neq}0.4, the obtained curves are…

Strongly Correlated Electrons · Physics 2015-05-12 M. ElMassalami , H. Takeya , A. M. Gomes , T. Paiva , R. R. dos Santos

In this work, we present the first magnetization measurements of DyCo$_5$ single crystals in magnetic fields up to 14 T, spanning a temperature range up to 600 K. Our investigation reveals several unique features, including a significant…

X-ray absorption spectroscopy(XAS) Ru L-edge and O K-edge measurements on single crystals of Sr2YRu1-xCuxO6 (x=0.01-0.05) solid solutions show that Cu replaces Ru in the lattice which results in a lattice distortion and itinerant holes that…

Superconductivity · Physics 2010-11-16 Chi Liang Chen , S. M. Rao , C. L. Dong , J. L. Chen , Y. S. Liu , C. L. Chang , T. S. Chan , H. L. Liu , H. H. Shieh , M. K. Wu

We report magnetization, specific heat, muon spin rotation and Na NMR measurements on the S=3/2 rhombohedrally stacked Heisenberg antiferromagnet NaCrO2. This compound appears to be an ideal candidate for the study of triangular Heisenberg…

Strongly Correlated Electrons · Physics 2007-05-23 A. Olariu , P. Mendels , F. Bert , B. G. Ueland , P. Schiffer , R. F. Berger , R. J. Cava

The dc-magnetization of the unique S=1/2 kagome antiferromagnet Herbertsmithite has been measured down to 0.1K. No sign of spin freezing is observed in agreement with former muSR and ac-susceptibility results. The low temperature magnetic…

Strongly Correlated Electrons · Physics 2009-11-13 F. Bert , S. Nakamae , F. Ladieu , D. L'Hôte , P. Bonville , F. Duc , J. -C. Trombe , P. Mendels
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