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We have measured the field-dependent heat capacity in the tetragonal antiferromagnets CeRhIn$_{5}$ and Ce$_{2}$RhIn$_{8}$, both of which have an enhanced value of the electronic specific heat coefficient $\gamma \sim 400$ mJ/mol-Ce K$^{2}$…

Strongly Correlated Electrons · Physics 2009-11-07 A. L. Cornelius , P. G. Pagliuso , M. F. Hundley , J. L. Sarrao

We investigated the anisotropic magnetic properties of CePd$_2$As$_2$ by magnetic, thermal and electrical transport studies. X-ray diffraction confirmed the tetragonal ThCr$_2$Si$_2$-type structure and the high-quality of the single…

Strongly Correlated Electrons · Physics 2017-08-09 M. O. Ajeesh , T. Shang , W. B. Jiang , W. Xie , R. D. dos Reis , M. Smidman , C. Geibel , H. Q. Yuan , M. Nicklas

The magnetic properties of alkali-metal peroxychromate K$_2$NaCrO$_8$ are governed by the $S = 1/2$ pentavalent chromium cation, Cr$^{5+}$. Specific heat, magnetocalorimetry, ac magnetic susceptibility, torque magnetometry, and inelastic…

The correlated electron material CePd$_2$P$_2$ crystallizes in the ThCr$_2$Si$_2$ structure and orders ferromagnetically at 29 K. Lai et al. [Phys. Rev. B 97, 224406 (2018)] found evidence for a ferromagnetic quantum critical point induced…

Strongly Correlated Electrons · Physics 2020-09-30 T. A. Elmslie , D. VanGennep , W. Bi , Y. Lai , S. T. Weir , Y. K. Vohra , R. E. Baumbach , J. J. Hamlin

Measurements on resistivity and magnetic susceptibility have been carried out for Bi single crystals under pressures up to 10.5GPa. The temperature dependent resistivity shows a semimetallic behavior at ambient and low pressures (below…

Superconductivity · Physics 2017-01-25 Yufeng Li , Enyu Wang , Xiyu Zhu , Hai-Hu Wen

The f-electron compound CeAuSb2, which crystallizes in the ZrCuSi2-type tetragonal structure, orders antiferromagnetically between 5 and 6.8 K, where the antiferromagnetic transition temperature T_N depends on the occupancy of the Au site.…

Strongly Correlated Electrons · Physics 2012-03-26 S. Seo , V. A. Sidorov , H. Lee , D. Jang , Z. Fisk , J. D. Thompson , T. Park

We report a detailed single crystal investigation of a magnetoelectric ferrimagnet Cu2OSeO3 using dc magnetization and ac susceptibility along the three principal directions [100], [110] and [111]. We have observed that in small magnetic…

Materials Science · Physics 2012-05-24 I. Živković , D. Pajić , T. Ivek , H. Berger

We have measured the magnetic field dependence of the paramagnetic to the field-induced high temperature antiferroquadrupolar magnetically ordered phase transition is CeB6 from 0 to 60 T using a variety of techniques. It is found that the…

Strongly Correlated Electrons · Physics 2009-11-10 R. G. Goodrich , David P. Young , Donavan Hall , Z. Fisk , N. Harrison , J. Betts , Albert Migliori , F. M. Woodward , J. W. Lynn

We study the effects of an external magnetic field on thensuperconducting phase diagram of a quasi-two-dimensional system of Dirac electrons at an arbitrary temperature. At zero temperature, there is a quantum phase transition connecting a…

Superconductivity · Physics 2020-10-14 E. C. Marino , Lizardo H. C. M. Nunes

Superconducting (SC) gap symmetry and magnetic response of cubic U0.97Th0.03Be13 are studied by means of high-precision heat-capacity and dc magnetization measurements using a single crystal, in order to address the long-standing question…

We present magnetization measurements on Sr4Ru3O10 as a function of temperature and magnetic field applied perpendicular to the magnetic easy $c$-axis inside the ferromagnetic phase. Peculiar metamagnetism evolves in Sr4Ru3O10 below the…

Strongly Correlated Electrons · Physics 2018-05-23 F. Weickert , L. Civale , B. Maiorov , M. Jaime , M. B. Salamon , E. Carleschi , A. M. Strydom , R. Fittipaldi , V. Granata , A. Vecchione

Using ac susceptibility, we have determined the pressure dependence of the metamagnetic critical end point temperature T* for field applied in the ab-plane in the itinerant metamagnet Sr3Ru2O7. We find that T* falls monotonically to zero as…

Strongly Correlated Electrons · Physics 2015-05-20 W. Wu , A. McCollam , S. A. Grigera , R. S. Perry , A. P. Mackenzie , S. R. Julian

The heavy-fermion compound YbRh2Si2 exhibits an antiferromagnetic (AFM) phase transition at an extremely low temperature of TN = 70 mK. Upon applying a tiny magnetic field of Bc = 60 mT the AFM ordering is suppressed and the system is…

Strongly Correlated Electrons · Physics 2009-11-13 S. Hartmann , N. Oeschler , C. Krellner , C. Geibel , F. Steglich

We have investigated the temperature and magnetic field dependence of magnetization ($M$), specific heat ($C_p$), and relative sample length change ($\Delta L/L_0$) for understanding the field-induced metamagnetic transitions in…

Strongly Correlated Electrons · Physics 2016-01-20 M. Nandi , P. Mandal

We report the existence of a field-induced ferromagnetic transition in the magnetically ordered state (<69 K) of an intermetallic compound, Tb5Si3, and this transition is distinctly first-order at 1.8 K (near 60 kOe), whereas it appears to…

Strongly Correlated Electrons · Physics 2009-02-03 S. Narayana Jammalamadaka , Niharika Mohapatra , Sitikantha D Das , E. V. Sampathkumaran

We have performed X-ray powder diffraction, magnetization, electrical resistivity, heat capacity and inelastic neutron scattering (INS) to investigate the physical properties of the intermetallic series of compounds CeCuBi$_{2-x}$Sb$_{x}$.…

CaCo$_{2}$As$_{2}$, a ThCr$_{2}$Si$_{2}$-structure compound, undergoes an antiferromagnetic transition at \emph{T$_{N}$}=76K with the magnetic moments being aligned parallel to the \emph{c} axis. Electronic transport measurement reveals…

Strongly Correlated Electrons · Physics 2015-06-04 B. Cheng , B. F. Hu , R. H. Yuan , T. Dong , A. F. Fang , Z. G. Chen , G. Xu , Y. G. Shi , P. Zheng , J. L. Luo , N. L. Wang

We report pressure-induced superconductivity in a single crystal of CaFe2As2. At atmospheric pressure, this material is antiferromagnetic below 170 K but under an applied pressure of 0.69 GPa becomes superconducting, with a transition…

Superconductivity · Physics 2008-07-18 Tuson Park , Eunsung Park , Hanoh Lee , T. Klimczuk , E D Bauer , F Ronning , J D Thompson

Low temperature magnetization M measurements down to 70~mK have been performed through the superconducting upper critical field H_c2 of CeCoIn5 with the field H parallel to the c axis of the tetragonal crystal. The crossing through the…

Strongly Correlated Electrons · Physics 2015-05-27 Carley Paulsen , Dai Aoki , Georg Knebel , Jacques Flouquet

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