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Related papers: Weak magnetic transitions in pyrochlore Bi2Ir2O7

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The quasiparticle excitations in the mixed state of Cd2Re2O7 have been studied by means of muon spin rotation/relaxation. The temperature dependence of the magnetic penetration depth (lambda) is consistent with a nearly isotropic…

Superconductivity · Physics 2009-11-07 R. Kadono , W. Higemoto , A. Koda , Y. Kawasaki , M. Hanawa , Z. Hiroi

Collective behaviour of electrons, frustration induced quantum fluctuations and entanglement in quantum materials underlie some of the emergent quantum phenomena with exotic quasi-particle excitations that are highly relevant for…

Muon spin relaxation ($\mu$SR) and magnetic susceptibility measurements have been performed on the pure and diluted spin 1/2 kagom\'{e} system (Cu$_x$Zn$_{1-x}$)$_{3}$V$_{2}$O$_7$(OH)$_{2}$ 2H$_2$O. In the pure $x=1$ system we found a…

The magnetic ground state of double perovskite Sr2DyRuO6 has been investigated using muon spin rotation and relaxation (muSR), neutron powder diffraction (NPD) and inelastic neutron scattering (INS), in addition to heat capacity and…

Strongly Correlated Electrons · Physics 2020-03-19 D. T. Adroja , Shivani Sharma , C. Ritter , A. D. Hillier , C. V. Tomy , R. Singh , R. I. Smith , M. Koza , A. Sundaresan , S. Langridge

We report the low temperature magnetic properties of Nd$^{3+}$ pyrochlore $\rm Nd_2ScNbO_7$. Susceptibility and magnetization show an easy-axis moment, and heat capacity reveals a phase transition to long range order at $T_N=371(2)$ mK with…

Strongly Correlated Electrons · Physics 2022-08-11 A. Scheie , M. Sanders , Yiming Qiu , T. R. Prisk , R. J. Cava , C. Broholm

We present the results of muon-spin relaxation (muSR) measurements on the hexagonal manganite HoMnO3. Features in the temperature-dependent relaxation rate, lambda, correlate with the magnetic transitions at 76 K, 38 K and 34 K. The highest…

Strongly Correlated Electrons · Physics 2015-05-14 H. J. Lewtas , T. Lancaster , P. J. Baker , S. J. Blundell , D. Prabhakaran , F. L. Pratt

We report Resonant Inelastic X-ray Scattering (RIXS) study of the magnetic excitation spectrum in a highly insulating Eu$_{2}$Ir$_{2}$O$_{7}$ single crystal that exhibits a metal-insulator transition at $T_{MI}$ = 111(7) K. A propagating…

Strongly Correlated Electrons · Physics 2018-06-13 Sae Hwan Chun , Bo Yuan , Diego Casa , Jungho Kim , Chang-Yong Kim , Zhaoming Tian , Yang Qiu , Satoru Nakatsuji , Young-June Kim

The magnetic vortex lattice (VL) of polycrystalline MgB2 has been investigated by transverse-field muon-spin-relaxation (TF-MuSR). The evolution of TF-MuSR depolarization rate, sigma, that is proportional to the second moment of the field…

Superconductivity · Physics 2009-11-07 Ch. Niedermayer , C. Bernhard , T. Holden , R. K. Kremer , K. Ahn

Combined resistance noise and muon-spin relaxation ($\mu$SR) measurements of the ferromagnetic semiconductor HgCr$_2$Se$_4$ suggest a degree of magnetoelectric coupling and provide evidence for the existence of isolated magnetic polarons.…

The magnetic insulator Gd2Sn2O7 is one of many geometrically frustrated magnetic materials known to exhibit a nonzero muon spin polarization relaxation rate, $\lambda(T)$, down to the lowest temperature (T) studied. Such behaviour is…

Disordered Systems and Neural Networks · Physics 2011-04-11 P. A. McClarty , J. N. Cosman , A. G. Del Maestro , M. J. P. Gingras

Zero-field muon-spin relaxation measurements of the frustrated triangular quantum magnet AgNiO2 are consistent with a model of charge disproportionation that has been advanced to explain the structural and magnetic properties of this…

Strongly Correlated Electrons · Physics 2009-11-13 T. Lancaster , S. J. Blundell , P. J. Baker , M. L. Brooks , W. Hayes , F. L. Pratt , R. Coldea , T. Soergel , M. Jansen

We present resistivity, magnetization, and zero field muon spin relaxation ($\mu$SR) data for the pyrochlore iridate materials Nd$_{2-x}$Ca$_{x}$Ir$_{2}$O$_{7}$ ($x = 0, 0.06$, and $0.10$) and Sm$_2$Ir$_2$O$_7$. While…

Strongly Correlated Electrons · Physics 2014-06-03 M. J. Graf , S. M. Disseler , Chetan Dhital , T. Hogan , M. Bojko , A. Amato , H. Luetkens , C. Baines , D. Margineda , S. R. Giblin , M. Jura , Stephen D. Wilson

We report low-temperature muon spin relaxation/rotation (muSR) measurements on single crystals of the actinide superconductor UTe2. Below 5 K we observe a continuous slowing down of magnetic fluctuations that persists through the…

We report on systematic muon-spin rotation and relaxation ($\mu$SR) studies of the magnetic properties of EuAl$_4$ and EuGa$_4$ single crystals at a microscopic level. Transverse-field $\mu$SR measurements, spanning a wide temperature range…

Strongly Correlated Electrons · Physics 2022-01-21 X. Y. Zhu , H. Zhang , D. J. Gawryluk , Z. X. Zhen , B. C. Yu , S. L. Ju , W. Xie , D. M. Jiang , W. J. Cheng , Y. Xu , M. Shi , E. Pomjakushina , Q. F. Zhan , T. Shiroka , T. Shang

We report a detailed study of structural and magnetic properties of the pyrochlore-type (Bi2-xPrx)Ru2O7 series. Eleven compositions with 0 <= x <= 2 were prepared by solid state reaction at 1050 degrees C and found to form a solid solution…

Materials Science · Physics 2008-12-16 Siwar Zouari , Rafik Ballou , Abdelwaheb Cheikh-Rouhou , Pierre Strobel

The results of muon-spin relaxation and heat capacity measurements on two pyroxene compounds LiFeSi2O6 and NaFeSi2O6 demonstrate that despite their underlying structural similarity the magnetic ordering is considerably different. In…

Strongly Correlated Electrons · Physics 2010-07-08 P. J. Baker , H. J. Lewtas , S. J. Blundell , T. Lancaster , I. Franke , W. Hayes , F. L. Pratt , L. Bohaty , P. Becker

The magnetocaloric effect of polycrystalline samples of pure and Y-doped dipolar spin ice Dy2Ti2O7 was investigated at temperatures from nominally 0.3 K to 6 K and in magnetic fields of up to 2 T. As well as being of intrinsic interest, it…

Soft Condensed Matter · Physics 2015-06-25 M. Orendac , J. Hanko , E. Cizmar , A. Orendacova , M. Shirai , S. T. Bramwell

Muon spin rotation and relaxation measurements have been carried out on the unconventional antiferromagnet Yb_3Pt_4. Oscillations are observed below T_N = 2.22(1) K, consistent with the antiferromagnetic (AFM) Neel temperature observed in…

Strongly Correlated Electrons · Physics 2015-05-19 S. Zhao , D. E. MacLaughlin , O. O. Bernal , J. M. Mackie , C. Marques , Y. Janssen , M. C. Aronson

We present the results of a muon-spin relaxation ($\mu^{+}$SR) investigation of the crystalline organic radical compound 4-(2-benzimidazolyl)-1,2,3,5-dithiadiazolyl (HbimDTDA), in which we demonstrate the hysteretic magnetic switching of…

Magnetic excitations in cycloidal magnet LiCu$_2$O$_2$ are explored using THz absorption spectroscopy in magnetic fields up to 12 T. Below the spin ordering temperature we observe eight optically active transitions in the spin system of…

Strongly Correlated Electrons · Physics 2015-05-13 D. Hüvonen , U. Nagel , T. Rõõm , Y. J. Choi , C. L. Zhang , S. Park , S. -W. Cheong