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Ultra-clean crystals of Sr$_3$Ru$_2$O$_7$ undergo a metamagnetic transition at low temperatures. This transition shows a strong anisotropy in the applied field direction with the critical field $H_c$ ranging from $\sim 5.1$T for $H\perp c$…

Strongly Correlated Electrons · Physics 2010-02-26 Mark H. Fischer , Manfred Sigrist

Anisotropic superconducting properties including the upper critical field Hc2, thermal activation energy U0, and critical current density Jc are systematically studied in a large Ca1-xLaxFeAs2 single crystal (x ~ 0.18). The obtained Hc2…

Superconductivity · Physics 2014-06-06 Wei Zhou , Jincheng Zhuang , Feifei Yuan , Xiong Li , Xiangzhuo Xing , Yue Sun , Zhixiang Shi

A thermodynamic and transport study of Sr4Ru3O10 as a function of temperature and magnetic field is presented. The central results include a growing specific heat C with increasing field B, a magnetic contribution to C/T at low temperatures…

Strongly Correlated Electrons · Physics 2009-11-13 G. Cao , S. Chikara , J. W. Brill , Schlottmann

The temperature dependent resistivity of Ba$_{1-x}$K$_x$Fe$_2$As$_2$ (x = 0.23, 0.25, 0.28 and 0.4) single crystals and the angle dependent resistivity of superconducting Ba$_{0.6}$K$_{0.4}$Fe$_2$As$_2$ single crystals were measured in…

Superconductivity · Physics 2009-11-13 Zhao-Sheng Wang , Hui-Qian Luo , Cong Ren , Hai-Hu Wen

(Mn,Fe)2(P,Si) single crystals have been successfully grown by flux method. Single crystal diffraction demonstrates that Mn0.83Fe1.17P0.72Si0.28 crystallizes in a hexagonal crystal structure (space group P-62m) at both 100 and 280 K, in the…

Materials Science · Physics 2015-08-03 H. Yibole , F. Guillou , Y. K. Huang , G. R. Blake , A. J. E. Lefering , N. H. van Dijk , E. Brück

We report the field-orientation dependent specific heat of the spin-triplet superconductor Sr2RuO4 under the magnetic field aligned parallel to the RuO2 planes with high accuracy. Below about 0.3 K, striking 4-fold oscillations of the…

Superconductivity · Physics 2009-11-10 Kazuhiko Deguchi , Zhiqiang Mao , Hiroshi Yaguchi , Yoshiteru Maeno

Magnetic moments intercalated into layered transition metal dichalcogenides are an excellent system for investigating the rich physics associated with magnetic ordering in a strongly anisotropic, strong spin-orbit coupling environment. We…

Strongly Correlated Electrons · Physics 2015-04-08 Will J. Hardy , Chih-Wei Chen , A. Marcinkova , Heng Ji , Jairo Sinova , D. Natelson , E. Morosan

The magnetization in a lightly doped La$_{2-x}$Sr$_x$CuO$_4$ ($x=0.018$) single crystal was measured. Spin-flop transition was clearly observed in the hole doped antiferromagnetically ordered state under increasing magnetic fields…

Strongly Correlated Electrons · Physics 2009-11-07 T. Suzuki , T. Goto , K. Chiba , T. Fukase , M. Fujita , K. Yamada

We have investigated uniaxial pressure effect on superconductivity of pure Sr2RuO4, whose intrinsic superconducting transition temperature Tc is 1.5 K. It was revealed that a very low uniaxial pressure along the c axis, only 0.2 GPa,…

Superconductivity · Physics 2010-05-28 Shunichiro Kittaka , Haruka Taniguchi , Shingo Yonezawa , Hiroshi Yaguchi , Yoshiteru Maeno

Magnetic anisotropy is a crucial characteristic for enhancing spintronic device performance. The synthesis of SmCrGe$_3$ single crystals through a high-temperature solution method has led to the determination of uniaxial magnetocrystalline…

Highly anisotropic properties of CeIr$_3$Si$_2$ have been observed by the magnetization $M$($B$), electrical resistivity $\rho$, and specific heat measurements on a single-crystalline sample. This compound with an orthorhombic structure…

Strongly Correlated Electrons · Physics 2009-11-13 K. Shigetoh , A. Ishida , Y. Ayabe , T. Onimaru , K. Umeo , Y. Muro , K. Motoya , M. Sera , T. Takabatake

We have investigated the ac susceptibility of the spin triplet superconductor Sr$_2$RuO$_4$ as a function of magnetic field in various directions at temperatures down to 60 mK. We have focused on the in-plane field configuration (polar…

Superconductivity · Physics 2009-11-07 Hiroshi Yaguchi , Takashi Akima , Zhiqiang Mao , Yoshiteru Maeno , Takehiko Ishiguro

We report that the local Ising anisotropy in pyrochlore oxides - the crucial requirement for realizing the spin-ice state - can be broken by means of high magnetic fields. For the case of the well-established classical spin-ice compound…

Strongly Correlated Electrons · Physics 2019-03-27 L. Opherden , T. Herrmannsdörfer , M. Uhlarz , D. I. Gorbunov , A. Miyata , O. Portugall , I. Ishii , T. Suzuki , H. Kaneko , H. Suzuki , J. Wosnitza

We report the magnetization ($M$) and magnetoresistance (MR) results of HoAl$_2$ single crystals oriented along $<100>$ and $<110>$ directions. Although HoAl$_2$ has cubic Laves phase structure, a large anisotropy is observed in $M$ and MR…

Materials Science · Physics 2011-07-12 M. Patra , S. Majumdar , S. Giri , Y. Xiao , T. Chatterji

Using muon-spin rotation, we studied the in-plane (\lambda_ab) and the out of plane (\lambda_c) magnetic field penetration depth in SrFe_1.75Co_0.25As_2 (T_c=13.3 K). Both \lambda_ab(T) and \lambda_c(T) are consistent with the presence of…

Superconductivity of Ca1-xLaxFe2As2 single crystals with various doping level were investigated via electromagnetic measurements for out-plane (H//c) and in-plane (H//ab) directions. Obvious double superconducting transitions, which can…

Superconductivity · Physics 2013-08-28 W. Zhou , F. F. Yuan , J. C. Zhuang , Y. Sun , Y. Ding , L. J. Cui , J. Bai , Z. X. Shi

Anisotropic properties of single crystals of SrPt$_{3}$P were studied using London penetration depth and electrical resistivity measurements. The upper critical field, $H_{c2}(T)$, was determined from four-probe electrical resistivity…

Superconductivity · Physics 2022-09-14 Kyuil Cho , S. Teknowijoyo , S. Ghimire , E. H. Krenkel , M. A. Tanatar , N. D. Zhigadlo , R. Prozorov

The temperature dependence of the upper critical magnetic field (Hc2) in a BaFe1.84Co0.16As2 single crystal was determined via resistivity, for the inter-plane (H^ab) and in-plane (H//ab) directions in pulsed and static magnetic fields of…

Superconductivity · Physics 2015-05-13 M. Kano , Y. Kohama , D. Graf , F. F. Balakirev , A. S. Sefat , M. A. McGuire , B. C. Sales , D. Mandrus , S. W. Tozer

The complex magnetic transitions and superconductivity of HoNi2B2C were studied via the dependence of the heat capacity on temperature and in-plane field angle. We provide an extended, comprehensive magnetic phase diagram for B // [100] and…

Superconductivity · Physics 2009-11-10 Tuson Park , M. B. Salamon , Eun Mi Choi , Heon Jung Kim , Sung-Ik Lee

Spin-triplet superfluids can support exotic objects, such as half-quantum vortices characterized by the nontrivial winding of the spin structure. We present cantilever magnetometry measurements performed on mesoscopic samples of Sr2RuO4, a…

Superconductivity · Physics 2011-01-20 J. Jang , D. G. Ferguson , V. Vakaryuk , R. Budakian , S. B. Chung , P. M. Goldbart , Y. Maeno
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