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The magnetic ground state is crucial for the applications of the two-dimension magnets as it decides fundamental magnetic properties of the material, such as magnetic order, magnetic transition temperature, and low-energy excitation of the…

Materials Science · Physics 2024-12-06 Yue-Fei Hou , Shujing Li , Xinlong Yang , Wei Jiang , Qiuhao Wang , Fawei Zheng , Zhen-Guo Fu , Ping Zhang

SrEr$_2$O$_4$ has been characterised by low-temperature powder neutron diffraction, as well as single crystal specific heat and magnetisation measurements. Magnetisation measurements show that the magnetic system is highly anisotropic at…

Strongly Correlated Electrons · Physics 2008-11-18 O. A. Petrenko , G. Balakrishnan , N. R. Wilson , S. de Brion , E. Suard , L. C. Chapon

A detailed study of the electronic transport and magnetic properties of Fe$_{1-x}$Cu$_x$Cr$_2$S$_4$ ($x \leq 0.5$) on single crystals is presented. The resistivity is investigated for $2 \leq T \leq 300$ K in magnetic fields up to 14 Tesla…

Magnetoresistivity $\rho _{xx}$ and $\rho _{xy}$ and the acoustoelectronic effects are measured in $p$-Si/SiGe/Si with an impurity concentration $p$ = 2 $\times $ 10$^{11}$ cm$^{-2}$ in the temperature range 0.3-2.0 K and an tilted magnetic…

Mesoscale and Nanoscale Physics · Physics 2010-11-25 I. L. Drichko , I. Yu. Smirnov , A. V. Suslov , O. A. Mironov , D. R. Leadley

The dependence of in-plane and interplane thermal conductivities of Sr2RuO4 on temperature, as well as magnetic field strength and orientation, is reported. We found no notable anisotropy in the thermal conductivity for the magnetic field…

Superconductivity · Physics 2009-11-07 M. A. Tanatar , M. Suzuki , S. Nagai , Z. Q. Mao , Y. Maeno , T. Ishiguro

One of the remaining issues concerning the spin-triplet superconductivity of Sr2RuO4 is the strong limit of the in-plane upper critical field Hc2 at low temperatures. In this study, we clarified the dependence of Hc2 on the angle theta…

Superconductivity · Physics 2009-11-16 S. Kittaka , T. Nakamura , Y. Aono , S. Yonezawa , K. Ishida , Y. Maeno

Temperature (4.2-260 K) and magnetic field (0-50 kOe) dependencies of the dc electrical resistance, dc magnetization, and ac magnetic susceptibility of (Sm0.65Sr0.35)MnO3 prepared from high purity components have been studied.

Materials Science · Physics 2007-05-23 E. M. Levin , P. M. Shand

A detailed zero and transverse field (ZF&TF) muon spin rotation (muSR) investigation of magnetism and the magneto-electric coupling in Cu2OSeO3 is reported. An internal magnetic field B_int(T=0) = 85.37(25) mT was found, in agreement with a…

Strongly Correlated Electrons · Physics 2015-05-28 A. Maisuradze , Z. Guguchia , B. Graneli , H. M. Ronnow , H. Berger , H. Keller

Resistivity, thermoelectric power, heat capacity and magnetization for samples of RuSr_2(Gd_{1.5}Ce_{0.5})Cu_{2}O_{10-\delta} were investigated in the temperature range 1.8-300 K with a magnetic field up to 8 T. The resistive transitions to…

Magnetic nanoparticles of gamma-Fe2O3 coated by organic molecules and suspended in liquid and solid matrices, as well as a non-diluted magnetic fluid have been studied by electron magnetic resonance (EMR) at 77-380 K. Slightly asymmetric…

Materials Science · Physics 2009-11-11 N. Noginova , F. Chen , T. Weaver , E. P. Giannelis , A. B. Bourlinos , V. A. Atsarkin

We have measured the magnetization and specific heat of multiferroic CoCr2O4 in magnetic fields up to 14 T. The high-field magnetization measurements indicate a new phase transition at T* = 5 - 6 K. The phase between T* and the lock-in…

The anisotropic magnetic properties of Sr$_2$IrO$_4$ are investigated, using longitudinal and torque magnetometry. The critical scaling across $T_c$ of the longitudinal magnetization is the one expected for the 2D XY universality class.…

Strongly Correlated Electrons · Physics 2016-04-20 L. Fruchter , D. Colson , V. Brouet

The temperature $T$ and magnetic field $H$ dependencies of the electrical resistivity $\rho$ of the recently discovered heavy fermion superconductor \PrOsSb{} have features that are associated with the splitting of the Pr$^{3+}$ Hund's rule…

Strongly Correlated Electrons · Physics 2009-11-10 N. A. Frederick , M. B. Maple

The magnetic susceptibility of underdoped yttrium and lanthanum cuprates is interpreted based on the self-consistent solution of the t-J model of a Cu-O plane. The calculations reproduce correctly the frequency dependencies of the…

Strongly Correlated Electrons · Physics 2007-05-23 A. Sherman

Effects of orbital degeneracy on magnetic susceptibility in paramagnetic phases are investigated within a mean-field theory. Under certain crystalline electric fields, the magnetic moment consists of two independent moments, e.g., spin and…

Strongly Correlated Electrons · Physics 2009-08-11 Katsunori Kubo , Takashi Hotta

The switching of the magnetization configurations of giant magnetoresistance multilayer stacks not only changes the electric and thermal conductivities, but also the thermopower. We study the magnetotransport and the magneto-thermoelectric…

We report a highly unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and when the current is perpendicular to the field. While the linear…

Mesoscale and Nanoscale Physics · Physics 2012-02-06 Xiaoqing Zhou , B. Schmidt , L. W. Engel , G. Gervais , L. N. Pfeiffer , K. W. West , S. Das Sarma

PrCo$_2$Ga$_8$ is an orthorhombic quasi-skutterudite type compound which crystallizes in the CaCo$_2$Al$_8$ structure type, with space group $Pbam$ (No. 55). The Pr$^{3+}$ ion has a site symmetry of $C_s$ which predicts a crystal electric…

Strongly Correlated Electrons · Physics 2019-04-02 Michael O. Ogunbunmi , Buyisiwe M. Sondezi , Harikrishnan S. Nair , André M. Strydom

The magnetic properties of Ce in the $\alpha$ and $\gamma$ phase are calculated within the LDA+DMFT approach. The magnetic susceptibility in these two phases shows a similar behavior over a wide temperature range: a Curie-Weiss law at high…

Strongly Correlated Electrons · Physics 2012-06-26 S. V. Streltsov , E. Gull , A. O. Shorikov , M. Troyer , V. I. Anisimov , P. Werner

CePtSi2 was reported to exhibit an antiferromagnetic order below T*=1.8 K at ambient pressure, a valence state change at ~1.2 GPa, and superconductivity in the range between 1.4 and 2.1 GPa with the maximum transition temperature of 0.14 K…

Strongly Correlated Electrons · Physics 2022-06-17 S. E. Dissanayake , F. Ye , W. Tian , M. Matsuda , H. Muto , S. Suzuki , T. Nakano , S. Watanabe , J. Gouchi , Y. Uwatoko