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We report the NQR study on the pressure-induced paramagnetic state in the antiferromagnetic (AF) intermetallic compound YMn$_2$ with the N\'eel temperature T_N=100 K at ambient pressure. From the $T$ variation of the nuclear spin-lattice…

Strongly Correlated Electrons · Physics 2007-05-23 K. Nishikido , C. Thessieu , G-q. Zheng , Y. Kitaoka , K. Asayama , R. Hauser

We have performed depth dependent muon spin rotation/relaxation studies of the dynamics of single layer films of {\it Au}Fe and {\it Cu}Mn spin glasses as a function of thickness and of its behavior as a function of distance from the vacuum…

Disordered Systems and Neural Networks · Physics 2009-11-13 E. Morenzoni , H. Luetkens , T. Prokscha , A. Suter , S. Vongtragool , F. Galli , M. B. S. Hesselberth , N. Garifianov , R. Khasanov

Spin fluctuations were studied over a wide momentum ($\hbar Q$) and energy ($E$) space in the frustrated $d$-electron heavy-fermion metal LiV$_2$O$_4$ by time-of-flight inelastic neutron scattering. We observed the overall $Q$$-$$E$…

Strongly Correlated Electrons · Physics 2015-03-10 K. Tomiyasu , K. Iwasa , H. Ueda , S. Niitaka , H. Takagi , S. Ohira-Kawamura , T. Kikuchi , K. Nakajima , K. Yamada

The 3d electron spinel compound LiV2O4 exhibits heavy fermion behaviour below 30K which is related to antiferromagnetic spin fluctuations strongly enhanced in an extended region of momentum space. This mechanism explains enhanced…

Strongly Correlated Electrons · Physics 2015-05-19 Victor Yushankhai , Tetsuya Takimoto , Peter Thalmeier

The disordered pyrochlore oxide Dy$_{2}$Zr$_{2}$O$_{7}$ shows the signatures of field-induced spin freezing with remnant zero-point spin-ice entropy at 5 kOe magnetic field. We have performed zero-field and longitudinal field Muon spin…

Strongly Correlated Electrons · Physics 2023-03-28 Sheetal , Pabitra K. Biswas , K. Yokoyama , D. T. Adroja , C. S. Yadav

We present the full analysis of the normal state of the spin-fermion model near the antiferromagnetic instability in two dimensions. This model describes low-energy fermions interacting with their own collective spin fluctuations, which…

Superconductivity · Physics 2007-05-23 Ar. Abanov , Andrey V. Chubukov , J. Schmalian

We present measurements of magnetic field and frequency dependences of the low temperature (T = 1.8 K) AC-susceptibility, and temperature and field dependences of the longitudinal field positive muon spin relaxation ({\mu}SR) for…

Strongly Correlated Electrons · Physics 2015-06-05 R. C. Johnson , B. Z. Malkin , J. S. Lord , S. R. Giblin , A. Amato , C. Baines , A. Lascialfari , B. Barbara , M. J. Graf

We compute the electron spin susceptibility in the pseudogap regime of the two-dimensional Hubbard model in the framework of a SU(2) gauge theory of fluctuating magnetic order. The electrons are fractionalized in fermionic chargons with a…

Strongly Correlated Electrons · Physics 2026-01-29 Paulo Forni , Pietro M. Bonetti , Henrik Müller-Groeling , Demetrio Vilardi , Walter Metzner

Spin correlations in the pyrochlore antiferromagnet Y_2Ru_2O_7 with Curie-Weiss temperature $\Theta_{CW}=-1100$ K and critical temperature T_N=77 K were examined through neutron scattering. For $T_N<T<\Theta_{CW}/3$ the data show spin…

Strongly Correlated Electrons · Physics 2014-07-03 J. van Duijn , N. Hur , J. W. Taylor , Y. Qiu , Q. Z. Huang , S. -W. Cheong , C. Broholm , T. G. Perring

Using muon-spin-relaxation measurements we show that the pyrochlore compound Gd2Ti2O7, in its magnetically orderered phase below ~ 1 K, displays persistent spin dynamics down to temperatures as low as 20 mK. The characteristics of the…

Strongly Correlated Electrons · Physics 2007-05-23 A. Yaouanc , P. Dalmas de Reotier , V. Glazkov , C. Marin , P. Bonville , J. A. Hodges , P. C. M. Gubbens , S. Sakarya , C. Baines

We report results of a muon spin relaxation study of slow magnetic fluctuations in the pseudogap phase of underdoped single-crystalline YBa$_{2}$Cu$_{3}$O$_{y}$, $y = 6.77$ and 6.83. The dependence of the dynamic muon spin relaxation rate…

Lattice and spin excitations have been studied by Raman scattering in hexagonal YbMnO3 single crystals. The temperature dependences of the phonon modes show that the E2 mode at 256 cm-1 related to the displacement of Mn and O ions in a-b…

Strongly Correlated Electrons · Physics 2012-11-12 J. Liu , C. Toulouse , P. Rovillain , M. Cazayous , Y. Gallais , M. -A. Measson , S. W. Cheong , N. Lee , A. Sacuto

We carried out AC magnetic susceptibility measurements and muon spin relaxation spectroscopy on the cubic double perovskite Ba2YMoO6, down to 50 mK. Below ~1 K the muon relaxation is typical of a magnetic insulator with a spin-liquid type…

Strongly Correlated Electrons · Physics 2013-06-03 M. A. de Vries , J. O. Piatek , M. Misek , J. S. Lord , H. M. Ronnow , J. -W. G. Bos

Zero-field muon-spin-relaxation (ZF-{\boldmath $\mu$}SR) measurements were carried out down to 80 mK on the randomness bond system Tl$_{1-x}$K$_x$CuCl$_3$ with $x$ = 0.44. Time spectra are well fitted by the stretched exponential function…

Strongly Correlated Electrons · Physics 2009-11-13 Takao Suzuki , Fumiko Yamada , Isao Watanabe , Takayuki Goto , Akira Oosawa , Hidekazu Tanaka

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

Site-dependent local spin susceptibility is investigated with $^{125}$Te nuclear magnetic resonance in a Weyl semimetal WTe$_2$. The nuclear spin-lattice relaxation rate $1/T_1T$ shows a dependence of the square of temperature $T$ at high…

Materials Science · Physics 2022-04-05 Toshiki Yokoo , Yukihiro Watanabe , Masashi Kumazaki , Masayuki Itoh , Yasuhiro Shimizu

We present the results of muon-spin relaxation measurements on the triangular lattice Heisenberg antiferromagnet $\alpha$-KCrO$_{2}$. We observe sharp changes in behaviour at an ordering temperature of $T_{\mathrm{c}}=23$ K, with an…

Strongly Correlated Electrons · Physics 2014-06-12 F. Xiao , T. Lancaster , P. J. Baker , F. L. Pratt , S. J. Blundell , J. S. Möller , N. Z. Ali , M. Jansen

The spin dynamics in [TbPc$_{2}$]$^{0}$ and [DyPc$_{2}$]$^{0}$ single molecule magnets have been investigated by means of muon and nuclear spin-lattice relaxation rate measurements. The correlation time for the spin fluctuations was found…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 F. Branzoli , M. Filibian , P. Carretta , S. Klytaskaya , M. Ruben

MuSR experiments have been performed on powder sample of the "ordered spin ice" Tb$_2$Sn$_2$O$_7$ pyrochlore compound. At base temperature (T=35mK) the muon relaxation is found to be of dynamical nature which demonstrates that strong…

Strongly Correlated Electrons · Physics 2009-11-11 F. Bert , P. Mendels , A. Olariu , N. Blanchard , G. Collin , A. Amato , C. Baines , A. D. Hillier

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