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Recently, coexistence of ferromagnetism (T_Curie = 2.8K) and superconductivity (T_sc = 0.8K) has been reported in UCoGe, a compound close to a ferromagnetic instability at ambient pressure P. Here we present resistivity measurements under…

强关联电子 · 物理学 2011-08-26 Elena Hassinger , Dai Aoki , Georg Knebel , Jacques Flouquet

Structural and magnetic properties of the CoMn$_{0.88}$Cu$_{0.12}$Ge compound have been investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC) accompanied with investigation of magnetic properties under…

We report the magnetization, specific heat and transport measurements of high quality Na$_{0.85}$CoO$_2$ single crystals in applied magnetic fields up to 14T. In high temperatures, the system is in a paramagnetic phase. It undergoes a…

超导电性 · 物理学 2009-11-10 J. L. Luo , N. L. Wang , G. T. Liu , D. Wu , X. N. Jing , F. Hu , T. Xiang

We report on the magnetic and structural properties of La2Ni(Ni1/3Sb2/3)O6 in polycrystal, single crystal and thin film samples. We found that this material is a ferrimagnet (Tc ~ 100 K) which possesses a very distinctive and uncommon…

材料科学 · 物理学 2015-06-16 D. G. Franco , R. E. Carbonio , E. E. Kaul , G. Nieva

We report on the combined results of structural, magnetic, transport and calorimetric properties of Mn$_5$Si$_3$-type hexagonal Gd$_5$Sb$_3$. With decreasing temperature, it exhibits a ferromagnetic-like transition at 265 K, N\'{e}el…

材料科学 · 物理学 2023-06-27 S. Shanmukharao Samatham , Akhilesh Kumar Patel , K. G. Suresh

We investigate the magnetic response of thin NiI$_2$ flakes for temperatures above 80~K. Since no magnetic ordering is expected for bulk NiI$_2$, we observe clear paramagnetic response for massive NiI$_2$ single crystals. In contrast, thin…

介观与纳米尺度物理 · 物理学 2024-10-17 N. N. Orlova , A. A. Avakyants , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

We have demonstrated the effect of pressure on the steplike metamagnetic transition and its associated magnetostriction in (Eu$_{1-x}$Gd$_{x}$)$_{0.6}$Sr$_{0.4}$MnO$_{3}$ ($x=0$ and 0.1). The critical field initiating the field induced…

We present electrical-resistivity measurements on the prototypical heavy-fermion ferromagnet UGe$_2$ under pulsed magnetic field up to 60~T. An anisotropic field-induced suppression of the electronic correlations is revealed. The electrical…

强关联电子 · 物理学 2026-03-11 K. Somesh , T. Thebault , V. Taufour , D. Aoki , F. Duc , G. Knebel , D. Braithwaite , W. Knafo

Temperature evolution of the ferromagnetic resonance (FMR) and its interference with other microwave (MW) magnons near the collinear to conical ferrimagnetic phase transition at Tc2 = 305 K is found to correlate with the evolution of the…

材料科学 · 物理学 2025-04-09 Martin Kempa , Viktor Bovtun , Dalibor Repček , Josef Buršík , Stanislav Kamba

We investigated the magnetic phase diagram of the first Pr-based heavy fermion superconductor PrOs4Sb12 by means of high-resolution dc magnetization measurements in low temperatures down to 0.06K. The temperature dependence of the…

超导电性 · 物理学 2009-11-10 T. Tayama , T. Sakakibara , H. Sugawara , Y. Aoki , H. Sato

A systematic study of thermomagnetic irreversibility CoS$_{1.76}$Se$_{0.24}$ has been carried out. Our study shows that the resistivity at low temperature can be tuned by cooling in different magnetic fields and the critical field required…

强关联电子 · 物理学 2016-07-22 Saroj Kumar Mishra , R Rawat

Microcrystals of diaquocobalt(II) oxalate have been synthesized by the coprecipitation reaction of aqueous solutions of Cobalt (II) bromide and oxalic acid. Chemical analysis and thermal experiments revealed that there is only one phase…

材料科学 · 物理学 2016-10-26 E. Romero , M. E. Mendoza , R. Escudero

The transition metal dichalcogenide TiSe$_2$ has received significant research attention over the past four decades. Different studies have presented ways to suppress the 200~K charge density wave transition, vary low temperature…

We have investigated the magnetic properties of highly anisotropic layered ferromagnetic semiconductor CrI$_3$ in presence of hydrostatic pressure ($P$). At ambient pressure, magnetization exhibits a clear anomaly below 212 K along with a…

The influence of YBa2Cu3O4 (YBCO) superconductor layer (S-layer) with varying thickness d-YBCO = 20 to 50 nm on the magnetic coupling between two La0.67Ca0.33MnO3 (LCMO) ferromagnet layers (F-layer, thickness d-LCMO = 50 nm) in F/S/F…

超导电性 · 物理学 2016-11-23 Rajni Porwal , Anurag Gupta , R. C. Budhani

We investigated transport and magnetic properties of NdFeAsO$_{0.9}$F$_{0.1}$ single crystal under hydrostatic pressures up to 50\,GPa. The ambient pressure superconductivity at $T_{c} \sim$ 45.4\,K is fully suppressed at $P_{c} \sim$ 21…

The ferromagnetic quantum phase transition in the perovskite ruthenate Sr$_{1-x}$Ca$_x$RuO$_3$ is studied by low-temperature magnetization and electrical resistivity measurements on thin films. The films were grown epitaxially on SrTiO$_3$…

强关联电子 · 物理学 2010-03-03 M. Schneider , V. Moshnyaga , P. Gegenwart

Temperature dependent electrical resistivity, crystal structure and heat capacity measurements reveal a resistivity drop and metal to semiconductor transition corresponding to first order structural phase transition near 400 K in Ca3Co4O9.…

材料科学 · 物理学 2012-04-17 Tao Wu , Trevor A. Tyson , Haiyan Chen , Jianming Bai , Hsin Wang , Cherno Jaye

The hydrostatic pressure is expected to be an effective knob to tune the magnetostructural phase transitions of hexagonal MMX alloy. In this study, magnetization measurements under hydrostatic pressure were performed on a MMX martensitic…

材料科学 · 物理学 2021-06-08 Qingqi Zeng , Jianlei Shen , Enke Liu , Xuekui Xi , Wenhong Wang , Guangheng Wu , Xixiang Zhang

Orthorhombic single crystals of TbMn0.5Fe0.5O3 are found to exhibit spin-reorientation, magnetization reversal and weak ferromagnetism. Strong anisotropy effects are evident in the temperature dependent magnetization measurements along the…