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Related papers: Magnetization and Hall effect studies on the pyroc…

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Muon spin relaxation measurements on some quantum spin ice candidate materials, the insulating pyrochlores Pr2B2O7 (B = Sn, Zr, Hf), have been performed for temperatures in the range 0.05-280 K. The results are indicative of a static…

Strongly Correlated Electrons · Physics 2015-06-22 F. R. Foronda , F. Lang , J. S. Möller , T. Lancaster , A. T. Boothroyd , F. L. Pratt , S. R. Giblin , D. Prabhakaran , S. J. Blundell

We report experimental signatures of topological transitions among the Weyl semimetal states of pyrochlore Pr2Ir2O7, where the Kondo coupling between the Ir topological electrons and the spin-ice like orders of Pr moments plays a decisive…

The recently discovered spin Hall magnetoresistance effect electrically probes pure spin current flow across a ferrimagnetic insulator/normal metal bilayer interface. While usually the DC electrical resistance of the bilayer is measured as…

Mesoscale and Nanoscale Physics · Physics 2015-09-10 Johannes Lotze , Hans Huebl , Rudolf Gross , Sebastian T. B. Goennenwein

High-field magnetization, M($H$), on Ni$_{5}$(TeO$_{3}$)$_{4}$X$_{2}$ (X = Br and Cl) were measured by using a pulse magnet. These compounds have a two dimensional crystal structure and a distorted kagome spin frustrated system which is…

Strongly Correlated Electrons · Physics 2015-05-13 J. L. Her , Y. H. Matsuda , K. Suga , K. Kindo , S. Takeyama , H. Berger , H. D. Yang

We measure the ordinary and the anomalous Hall effect in a set of yttrium iron garnet$|$platinum (YIG$|$Pt) bilayers via magnetization orientation dependent magnetoresistance experiments. Our data show that the presence of the ferrimagnetic…

Neutron scattering measurements on the spin-ice candidate material Ho$_2$Ru$_2$O$_7$ have revealed two magnetic transitions at T $\sim$ 95 K and T $\sim$ 1.4 K to long-range ordered states involving the Ru and Ho sublattices, respectively.…

Statistical Mechanics · Physics 2009-11-10 C. R. Wiebe , J. S. Gardner , S. -J. Kim , G. M. Luke , A. S. Wills , B. D. Gaulin , J. E. Greedan , I. Swainson , Y. Qiu , C. Jones

Ising-like spin-1/2 magnetic materials are of interest for their ready connection to theory, particularly in the context of quantum critical behavior. In this work we report detailed studies of the magnetic properties of a member of the…

Strongly Correlated Electrons · Physics 2021-09-01 Gavin Hester , T. N. DeLazzer , D. R. Yahne , C. L. Sarkis , H. D. Zhao , J. A. Rodriguez Rivera , S. Calder , K. A. Ross

We studied in detail the low temperature/high magnetic field phases of URu$_{2}$Si$_{2}$ single crystals with specific heat, magnetocaloric effect, and magnetoresistance in magnetic fields up to 45 T. Data obtained down to 0.5 K, and…

Strongly Correlated Electrons · Physics 2009-11-07 M. Jaime , K. H. Kim , G. Jorge , S. McCall , J. A Mydosh

Colossal negative magnetoresistance and the associated field-induced insulator-to-metal transition, the most characteristic features of magnetic semiconductors, are observed in n-type rare earth oxides and chalcogenides, p-type manganites,…

Materials Science · Physics 2011-07-19 Ursula Wurstbauer , Cezary Śliwa , Dieter Weiss , Tomasz Dietl , Werner Wegscheider

In this letter, we report the gigantic thermal Hall effect $\kappa_{xy}$ in the low-field correlated-paramagnetic state of the frustrated pyrochlore Yb$_2$Ti$_2$O$_7$. We observed a record magnitude for the thermal Hall angle in an…

Strongly Correlated Electrons · Physics 2019-07-30 Max Hirschberger , Peter Czajka , S. M. Koohpayeh , Wudi Wang , N. Phuan Ong

The purpose of this study was to investigate the magnetotransport properties of the Ge(0.743)Pb(0.183)Mn(0.074)Te mixed crystal. The results of magnetization measurements indicated that the compound is a spin-glass-like diluted magnetic…

We report a rare realization of unconventional anomalous Hall effect (UAHE) both below and above the magnetic transition temperature (T_C) in a hexagonal noncentrosymmetric magnet Y_3Co_8Sn_4, using a combined experimental and ab-initio…

Magnetic topological insulators, possessing both magnetic order and topological electronic structure, provides an excellent platform to research unusual physical properties. Here, we report a high-pressure study on the anomalous Hall effect…

Comprehensive muon spin rotation/relaxation (muSR) and neutron powder diffraction (NPD) studies supported via bulk measurements have been performed on the ordered double perovskite Sr2YbRuO6 to investigate the nature of the magnetic ground…

We systematically measured the Hall effect in the extremely large magnetoresistance semimetal WTe$_2$. By carefully fitting the Hall resistivity to a two-band model, the temperature dependencies of the carrier density and mobility for both…

Strongly Correlated Electrons · Physics 2015-11-09 Yongkang Luo , H. Li , Y. M. Dai , H. Miao , Y. G. Shi , H. Ding , A. J. Taylor , D. A. Yarotski , R. P. Prasankumar , J. D. Thompson

The electronic and magnetic properties of spin-1/2 pyrochlores R2V2O7 were investigated on the basis of density-functional calculations. Contrary to the common belief, the spin-1/2 V4+ ions are found to have a substantial easy-axis…

Strongly Correlated Electrons · Physics 2015-05-20 H. J. Xiang , E. J. Kan , M. -H. Whangbo , C. Lee , Su-Huai Wei , X. G. Gong

Rare-earth pyrochlore iridates host two interlocking magnetic sublattices of corner-sharing tetrahedra and can harbour a unique combination of frustrated moments, exotic excitations and highly correlated electrons. They are also the first…

We present a comprehensive study of the magnetoelastic properties of the Ising pyrochlore oxide Ho$_{2}$Ti$_{2}$O$_{7}$, known as spin ice, by means of high-field magnetostriction measurements and numerical calculations. When a magnetic…

The Hall effect is one of the most fundamental but elusive phenomena in condensed matter physics due to the rich variety of underlying mechanisms. Here we report an exceptionally large Hall effect in a frustrated magnet GdCu$_2$ with high…

The Hall resistivity, magnetoresistance, and magnetization of La_{1-x}Ca_{x}CoO_{3} epitaxial films with x between 0.25 and 0.4 grown on lanthanum aluminate were measured in fields up to 7 T. The x=1/3 film, shows a reentrant metal…

Strongly Correlated Electrons · Physics 2009-11-07 S. A. Baily , M. B. Salamon