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Muon spin rotation and relaxation experiments in the pyrochlore iridate Eu2Ir2O7 yield a well-defined muon spin precession frequency below the metal-insulator/antiferromagnetic transition temperature TM = 120 K, indicative of long-range…

Strongly Correlated Electrons · Physics 2015-03-19 Songrui Zhao. J. M. Mackie , D. E. MacLaughlin , O. O. Bernal , J. J. Ishikawa , Y. Ohta , S. Nakatsuji

Thermometry based on magnetic resonance has been extensively studied due to its important application in biomedical imaging. In our previous work, we showed that the spin-spin relaxation time (T2) of nuclear magnetic resonance (NMR) in…

Applied Physics · Physics 2024-11-05 Pei-Yun Lin , Darshan Chalise , David G. Cahill

The $T$-dependence (2- 400 K) of the electron paramagnetic resonance (EPR), magnetic susceptibility, $\chi (T)$, and specific heat, $C_{v}(T)$, of the $normal$ antiferromagnetic (AFM) spinel ZnCr$_{2}$O$_{4}$ and the spin-glass (SG)…

Magnetic excitations and magnetic structure of EuRbFe$_4$As$_4$ were investigated by inelastic neutron scattering (INS), neutron diffraction, and random phase approximation (RPA) calculations. Below the superconducting transition…

We report here a comprehensive study of the AFM structures of the Eu and Mn magnetic sublattices as well as the interplay between Eu and Mn magnetism in this compound by using both polarized and non-polarized single-crystal neutron…

We investigated the metal-ordered manganite system YBaMn2O6 using electron spin resonance (ESR) in the paramagnetic regime across the charge-ordering and structural phase transition at T_CO = 480 K and T_t = 520 K, respectively. All ESR…

Strongly Correlated Electrons · Physics 2009-11-13 D. Zakharov , J. Deisenhofer , H. -A. Krug von Nidda , T. Nakajima , Y. Ueda , A. Loidl

The magnetic spin dynamics and optical properties of EuZn$_2$P$_2$ are studied. Single crystals grown by the Sn-flux method crystallize in the $P\overline{3}m1$ (No.~164) space group and order antiferromagnetically at $T_N=23.5$~K.…

The crystal growth and the structural, transport and magnetic properties of the magnetically frustrated YbMn$_2$Sb$_2$ single crystals are reported. The crystals show a trigonal symmetry (space group $P\bar{3}m1$), where corrugated…

Atomic Physics · Physics 2020-04-27 J. Munevar , F. R. Arantes , L. Mendonça-Ferreira , M. A. Avila , R. A. Ribeiro

Measurements of proton Nuclear Magnetic Resonance (1H NMR) spectra and relaxation and of Muon Spin Relaxation ($\mu^{+}$SR) have been performed as a function of temperature and external magnetic field on two isostructural lanthanide…

Materials Science · Physics 2019-11-20 E. Lucaccini , L. Sorace , F. Adelnia , S. Sanna , P. Arosio , M. Mariani , S. Carretta , Z. Salman , F. Borsa , A. Lascialfari

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 observation of a frequency shift and splitting of the electron spin resonance (ESR) mode of the low-dimensional S=1/2 frustrated antiferromagnet Cs2CuCl4 in the spin-correlated state below the Curie-Weiss temperature 4 K but…

Strongly Correlated Electrons · Physics 2015-03-18 K. Yu. Povarov , A. I. Smirnov , O. A. Starykh , S. V. Petrov , A. Ya. Shapiro

We report the results of ac and dc magnetization (M) and heat-capacity (C) measurements on the solid solution, Sr$_3$Cu$_{1-x}$Zn$_x$IrO$_6$. While the Zn end member is known to form in a rhombohedral pseudo one-dimensional K$_4$CdCl$_6$…

Strongly Correlated Electrons · Physics 2009-11-07 Asad Niazi , E. V. Sampathkumaran , P. L. Paulose , D. Eckert , A. Handstein , K. -H. Müller

Among iron 122 pnictide superconductors, the EuFe$_2$As$_2$ series draws particular interest because, in addition to superconductivity or the long-range spin-density-wave order in the Fe subsystem, the localized Eu$^{2+}$ magnetic moments…

Superconductivity · Physics 2011-03-15 Sina Zapf , Dan Wu , Lapo Bogani , Hirale S. Jeevan , Philipp Gegenwart , Martin Dressel

Ternary iron phosphide EuFe$_2$P$_2$ with ThCr$_2$Si$_2$-type structure has been systematically studied by the measurements of crystal structure, magnetization, M\"{o}ssbauer effect, transport properties and specific heat. The structural…

Strongly Correlated Electrons · Physics 2010-09-28 Chunmu Feng , Zhi Ren , Shenggao Xu , Zhu'an Xu , Guanghan Cao , I. Nowik , I. Felner , Kazuyuki Matsubayashi , Yoshiya Uwatoko

We discuss universal features on the electron spin resonance (ESR) of a temperature-induced Tomonaga-Luttinger liquid phase in a wide class of weakly coupled $S=1/2$ antiferromagnetic spin chains such as spin ladders, spin tubes and…

Strongly Correlated Electrons · Physics 2015-02-12 Shunsuke C. Furuya , Masahiro Sato

In this work, we report the broad-band ferromagnetic resonance spectroscopy of EuSn$_2$As$_2$ single crystals at different temperatures in combination with magnetization measurements and structural characterization. We observe conventional…

We have studied NpPdSn by means of the heat capacity, electrical resistivity, Seebeck and Hall effect, $^{237}$Np M\"{o}ssbauer spectroscopy, and neutron diffraction measurements in the temperature range 2-300 K and under magnetic fields up…

Strongly Correlated Electrons · Physics 2018-07-11 K. Shrestha , D. Antonio , J-C. Griveau , K. Prokeš , P. Gaczyński , E. Colineau , R. Caciuffo , K. Gofryk

We investigate the magnetic order in single crystalline EuCd$_2$Sb$_2$ thin films using a combined theoretical and experimental approach. Resonant elastic x-ray scattering experiments reveal a sharp magnetic peak at $q = (0, 0,…

The EuFe(2-x)Ni(x)As2 compounds exhibiting 3d and/or 4f magnetic order were investigated by means of 57Fe and 151Eu M\"ossbauer spectroscopy. Additionally, results for the end members of this system, i.e. EuFe2As2 and EuNi2As2, are reported…

Superconductivity · Physics 2021-06-07 K. Komedera , J. Gatlik , A. Blachowski , J. Zukrowski , D. Rybicki , A. Delekta , M. Babij , Z. Bukowski

The competing magnetic ground states of the itinerant magnet EuCuSb, which has a hexagonal layered structure, were studied via magnetization, resistivity, and neutron diffraction measurements on single-crystal samples. EuCuSb has a…