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Related papers: Antiferromagnetism with divalent Eu in EuNi$_5$As$…

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A thorough study of EuZn$_2$P$_2$ single crystals, which were grown from Sn flux, was performed using both bulk (heat capacity, ac susceptibility, dc magnetization, electrical resistivitivity, magnetoresistance) and microscopic (M\"ossbauer…

We report the single crystal growth and characterization of EuIn$_2$, a magnetic topological semimetal candidate according to our density functional theory (DFT) calculations. We present results from electrical resistance, magnetization,…

The trigonal compound EuSn2As2 was recently discovered to host Dirac surface states within the bulk band gap and orders antiferromagnetically below the Neel temperature TN = 24 K. Here the magnetic ground state of single-crystal EuSn2As2…

Strongly Correlated Electrons · Physics 2022-04-05 Santanu Pakhira , M. A. Tanatar , Thomas Heitmann , David Vaknin , D. C. Johnston

We report a comprehensive investigation of the physical properties of the Dirac semimetal compound EuAuBi single crystals, using neutron diffraction, magnetization, electrical transport, and specific heat measurements. EuAuBi crystallizes…

We studied the temperature-pressure phase diagram of EuFe2As2 by measurements of the electrical resistivity. The antiferromagnetic spin-density-wave transition at T_0 associated with the FeAs-layers is continuously suppressed with…

Superconductivity · Physics 2009-06-20 C. F. Miclea , M. Nicklas , H. S. Jeevan , D. Kasinathan , Z. Hossain , H. Rosner , P. Gegenwart , C. Geibel , F. Steglich

Using polarized neutron diffraction and x-ray resonant magnetic scattering (XRMS) techniques, multiple phase transitions were revealed in an underdoped, non-superconducting Eu(Fe$_{1-x}$Ir$_{x}$)$_{2}$As$_{2}$ ($\mathit{x}$ = 0.06) single…

Strongly Correlated Electrons · Physics 2016-08-06 W. T. Jin , Y. Xiao , Y. Su , S. Nandi , W. H. Jiao , G. Nisbet , S. Demirdis , G. H. Cao , Th. Brückel

We present a systematic study on the physical properties of EuFe$_{2-x}$Ni$_{x}$As$_{2}$ (0$\leq$\emph{x}$\leq$0.2) by electrical resistivity, magnetic susceptibility and thermopower measurements. The undoped compound EuFe$_{2}$As$_{2}$…

Superconductivity · Physics 2009-03-30 Zhi Ren , Xiao Lin , Qian Tao , Shuai Jiang , Zengwei Zhu , Cao Wang , Guanghan Cao , Zhu'an Xu

The magnetic order of the localized Eu$^{2+}$ spins in optimally-doped Eu(Fe$_{1-x}$Ir$_{x}$)$_{2}$As$_{2}$ ($\mathit{x}$ = 0.12) with superconducting transition temperature $\mathit{T_{SC}}$ = 22 K was investigated by single-crystal…

Superconductivity · Physics 2015-02-20 W. T. Jin , Wei Li , Y. Su , S. Nandi , Y. Xiao , W. H. Jiao , M. Meven , A. P. Sazonov , E. Feng , Yan Chen , C. S. Ting , G. H. Cao , Th. Brückel

EuC$_2$ is a ferromagnet with a Curie-temperature of $T_C \simeq 15\,$K. It is semiconducting with the particularity that the resistivity drops by about 5 orders of magnitude on cooling through $T_C$, which is therefore called a…

Materials Science · Physics 2011-12-01 O. Heyer , P. Link , D. Wandner , U. Ruschewitz , T. Lorenz

We report magnetic susceptibility \chi, isothermal magnetization M, heat capacity C_p and electrical resistivity \rho measurements on undoped EuMn2As2 and K-doped Eu0.96K0.04Mn2As2 and Eu0.93K0.07Mn2As2 single crystals with the trigonal…

Strongly Correlated Electrons · Physics 2016-12-13 V. K. Anand , D. C. Johnston

We report on the pressure evolution of the electronic and crystal structures of the noncentrosymmetric antiferromagnet EuCoGe3. Using a diamond anvil cell, we performed high pressure fluorescence detected near-edge x-ray absorption…

Strongly Correlated Electrons · Physics 2023-04-19 N. S. Dhami , V. Balédent , O. Bednarchuk , D. Kaczorowski , S. R. Shieh , J. M. Ablett , J. -P. Rueff , J. P. Itié , C. M. N. Kumar , Y. Utsumi

The Eu{+2} spins S = 7/2 in the metallic compound EuCo{2-y}As2 order into an antiferromagnetic helical structure below a Neel temperature TN = 40 to 45 K. The effective magnetic moment mu_eff of the Eu spins in the paramagnetic state from…

Strongly Correlated Electrons · Physics 2018-12-18 N. S. Sangeetha , S. D. Cady , D. C. Johnston

The magnetic properties of single crystalline EuPtGe$_3$, crystallizing in the non-centrosymmetric BaNiSn$_3$-type crystal structure, have been studied by means of magnetisation, electrical resistivity, heat capacity and $^{151}$Eu…

Strongly Correlated Electrons · Physics 2011-12-22 Neeraj Kumar , Pranab Kumar Das , Ruta Kulkarni , A. Thamizhavel , S. K. Dhar , P. Bonville

Enhanced magnetism has recently been reported for the topological-insulator/ferromagnet interface Bi$_2$Se$_3$/EuS with Curie temperatures claimed to be raised above room temperature from the bulk EuS value of 16 K. Here we investigate the…

Strongly Correlated Electrons · Physics 2021-08-25 K. Prokeš , Chen Luo , H. Ryll , E. Schierle , D. Marchenko , E. Weschke , F. Radu , R. Abrudan , V. V. Volobuev , G. Springholz , O. Rader

The intermetallic compound Eu$_5$In$_2$Sb$_6$, an antiferromagnetic material with nonsymmorphic crystalline structure, is investigated by magnetic, electronic transport and specific heat measurements. Being a Zintl phase, insulating…

We report the ac magnetic susceptibility $\chi_{ac}$ and resistivity $\rho$ measurements of EuFe$_2$As$_2$ under high pressure $P$. By observing nearly 100% superconducting shielding and zero resistivity at $P$ = 28 kbar, we establish that…

We studied the properties of the antiferromagnetic (AFM) UNi0.5Sb2 (TN \approx 161 K) compound in Sb-flux grown single crystals by means of measurements of neutron diffraction, magnetic susceptibility ({\chi}), specific heat (Cp),…

Strongly Correlated Electrons · Physics 2015-05-28 M. S. Torikachvili , B. K. Davis , K. Kothapalli , H. Nakotte , A. J. Schultz , E. D. Mun , S. L. Bud'ko

We have studied crystal structure, magnetism and electric transport properties of a europium fulleride Eu6C60 and its Sr-substituted compounds, Eu6-xSrxC60. They have a bcc structure, which is an isostructure of other M6C60 (M represents an…

Materials Science · Physics 2009-11-07 Kenji Ishii , Akihiko Fujiwara , Hiroyoshi Suematsu , Yoshihiro Kubozono

The dielectric constant of the incipient ferroelectric EuTiO$_3$ exhibits a sharp decrease at about 5.5K, at which temperature antiferromagnetic ordering of the Eu spins simultaneously appears, indicating coupling between the magnetism and…

Materials Science · Physics 2009-11-07 Qing Jiang , Hua Wu

We present a thorough $^{77}$Se NMR study of a single crystal of the magnetoelectric compound Cu$_2$OSeO$_3$. The temperature dependence of the local electronic moments extracted from the NMR data is fully consistent with a magnetic phase…

Strongly Correlated Electrons · Physics 2010-09-17 M. Belesi , I. Rousochatzakis , H. C. Wu , H. Berger , I. V. Shvets , F. Mila , J. P. Ansermet