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相关论文: 153Eu and 69,71Ga Zero-Field NMR Study of Antiferr…

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Filled skutterudite compound EuFe$_4$As$_{12}$ shows the highest magnetic ordering temperature of $T_{\rm C}$ = 154 K among Eu-based skutterudite compounds, but its magnetic ground state has not been determined yet. Here, we performed…

强关联电子 · 物理学 2020-08-26 Q. -P. Ding , H. -C. Lee , K. Nishine , Y. Kawamura , C. Sekine , Y. Furukawa

The body-centered-tetragonal antiferromagnet EuGa$_4$ was recently identified as a Weyl nodal-line semimetal that exhibits the topological Hall effect below its reported antiferromagnetic (AFM) ordering temperature $T_{\rm N}= 15$-16.5 K…

强关联电子 · 物理学 2023-02-08 Santanu Pakhira , D. C. Johnston

We have performed $^{69,71}$Ga nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) and muon spin rotation/resonance on the quasi two-dimensional antiferromagnet (AFM) NiGa$_2$S$_4$, in order to investigate its spin…

强关联电子 · 物理学 2009-11-13 H. Takeya , K. Ishida , K. Kitagawa , Y. Ihara , K. Onuma , Y. Maeno , Y. Nambu , S. Nakatsuji , D. E. MacLaughlin , A. Koda , R. Kadono

The magnetic structure of the intermetallic compound EuGa$_4$ was investigated using single-crystal neutron diffraction with the time-of-flight (TOF) Laue technique on the new diffractometer SENJU at MLF of J-PARC. In spite of high neutron…

TmGa$_{3}$ (AuCu$_3$ structure) undergoes two phase transitions, an antiferroquadrupolar transition at $\sim$ 4.29 K and long-range antiferromagnetic ordering at $\sim$ 4.26 K. Due to the close vicinity of the two phase transitions,…

强关联电子 · 物理学 2007-09-27 M. G. Banks , R. K. Kremer , G. Lapertot , D. Mannix , A. P. Murani

Precision continuous-wave NMR measurements have been carried out over the entire magnetization curve of EuO and are presented in tabular form. Two very closely spaced resonances are observed and are attributed to domain and domain-wall…

材料科学 · 物理学 2010-05-12 N. Bykovetz , B. Birang , J. Klein , C. L. Lin

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…

The body-centered-tetragonal antiferromagnet EuGa$_4$ exhibits A-type antiferromagnetic order below its N\'eel temperature $T_{\rm N} = 16.4$ K in magnetic field $H = 0$ where the moments are ferromagnetically aligned in the $ab$-plane with…

强关联电子 · 物理学 2023-03-22 Santanu Pakhira , David C. Johnston

We report ^{17}O Nuclear Magnetic Resonance (NMR) results in the stripe ordered La_{1.8-x}Eu_{0.2}Sr_{x}CuO_4 system. Below a temperature T_q ~ 80K, the local electric field gradient (EFG) and the absolute intensity of the NMR signal of the…

强关联电子 · 物理学 2016-08-16 H. -J. Grafe , N. J. Curro , M. Hücker , B. Büchner

Magnetism of the binary intermetallic compound MnGa$_4$ is re-investigated. Band-structure calculations predict antiferromagnetic behavior in contrast to Pauli paramagnetism reported previously. Magnetic susceptibility measurements on…

Magnetic topological insulators exhibit unique electronic states due to the interplay between the electronic topology and the spin structure. The antiferromagnetic metal $\rm{EuIn_2As_2}$ is a prominent candidate material in which exotic…

强关联电子 · 物理学 2024-09-23 Hikaru Takeda , Jian Yan , Zhongzhu Jiang , Xuan Luo , Yuping Sun , Minoru Yamashita

We report $^{139}$La and $^{63}$Cu nuclear magnetic and quadrupole resonance (NMR/NQR) studies in an underdoped La$_{1.93}$Sr$_{0.07}$CuO$_4$ single crystal, focusing on the $^{139}$La NMR in the normal state. We demonstrate that the local…

超导电性 · 物理学 2012-05-08 S. -H. Baek , A. Erb , B. Büchner , H. -J. Grafe

We report $^{59}$Co nuclear quadrupole resonance (NQR) measurements on the Nd-based compound NdCo$_2$Zn$_{18}$Ga$_2$, which undergoes an antiferromagnetic transition at $T_{\rm N} = 1.5$ K. Although the NQR spectra show no detectable change…

We report $^{153}$Eu, $^{75}$As and $^{59}$Co nuclear magnetic resonance (NMR) results on EuCo$_2$As$_2$ single crystal. Observations of $^{153}$Eu and $^{75}$As NMR spectra in zero magnetic field at 4.3 K below an antiferromagnetic (AFM)…

强关联电子 · 物理学 2017-05-10 Q. -P. Ding , N. Higa , N. S. Sangeetha , D. C. Johnston , Y. Furukawa

The magnetic structure of antiferromagnetic $\alpha$-Mn has been unclarified for almost 70 years since its magnetism was discovered. We measured the zero-field nuclear magnetic resonance spectra of antiferromagnetic $\alpha$-Mn to obtain…

In the nematic state of iron-based superconductors, twin formation often obscures the intrinsic, anisotropic, in-plane physical properties.Relatively high in-plane external magnetic fields $H_{\rm ext}$ greater than the typical lab-scale…

强关联电子 · 物理学 2021-01-01 Q. -P. Ding , N. S. Sangeetha , W. R. Meier , M. Xu , S. L. Bud'ko , P. C. Canfield , D. C. Johnston , Y. Furukawa

We report a local-probe investigation of the magnetically anisotropic kagom\'e compound Nd$_3$Ga$_5$SiO$_{14}$. Our zero-field $\mu$SR results provide a direct evidence of a fluctuating collective paramagnetic state down to 60 mK, supported…

强关联电子 · 物理学 2009-11-13 A. Zorko , F. Bert , P. Mendels , P. Bordet , P. Lejay , J. Robert

Here we investigate the thermodynamic and electronic properties of Eu$_{11}$InSb$_9$ single crystals. Electrical transport data show that Eu$_{11}$InSb$_9$ has a semiconducting ground state with a relatively narrow band gap of $320$~meV.…

强关联电子 · 物理学 2021-07-29 S. S. Fender , S. M. Thomas , F. Ronning , E. D. Bauer , J. D. Thompson , P. F. S. Rosa

We report $^{75}$As nuclear magnetic resonance (NMR) measurements of single-crystalline Ca(Fe$_{1-x}$Co$_x$)$_2$As$_2$ ($x$ = 0.023, 0.028, 0.033, and 0.059) annealed at 350~$^{\circ}$C for 7 days. From the observation of a characteristic…

超导电性 · 物理学 2015-11-11 J. Cui , B. Roy , M. A. Tanatar , S. Ran , S. L. Bud'ko , R. Prozorov , P. C. Canfield , Y. Furukawa

We report nuclear magnetic resonance (NMR) studies in the antiferromagnetic state of the quasi-two-dimensional (CuBr)LaNb2O7. The NMR spectra at zero magnetic field and 4.2 K indicate a unique Cu and Br sites with an internal field of 5.7 T…

强关联电子 · 物理学 2017-12-01 M. Yoshida , N. Ogata , M. Takigawa , T. Kitano , H. Kageyama , Y. Ajiro , K. Yoshimura
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