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相关论文: Local electromagnetic properties of magnetic pnict…

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139La NMR study was performed in grain aligned (c|| H0) sample of LaCoPO and polycrystalline LaFePO. Knight shift is isotropic and temperature independent in LaFePO. It is strongly temperature dependent and anisotropic in LaCoPO. The…

强关联电子 · 物理学 2015-05-19 M. Majumder , K. Ghoshray , A. Ghoshray , B. Bandyopadhyay , M. Ghosh

We present nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements performed on single crystalline \ccag{}, a member of a recently discovered family of heavy fermion materials Ce$_2M$Al$_7$Ge$_4$ ($M$ = Co, Ir,…

$^{59}$Co and $^{31}$P nuclear magnetic resonance (NMR) measurements in external magnetic and zero magnetic fields have been performed to investigate the magnetic properties of the A-type antiferromagnetic (AFM) CaCo$_2$P$_2$. NMR data,…

强关联电子 · 物理学 2018-12-26 N. Higa , Q. -P. Ding , A. Teruya , M. Yogi , M. Hedo , T. Nakama , Y. Ōnuki , Y. Furukawa

We use NMR techniques to investigate the magnetic properties of BaCo2As2 single crystals, the non-superconducting end member of the Co-substituted iron-pnictide high Tc superconductor Ba(Fe1-xCox)2As2 with x = 1. We present 75As NMR…

超导电性 · 物理学 2015-06-22 K. Ahilan , T. Imai , A. S. Sefat , F. L. Ning

We revisit the magnetic properties of the antiferromagnetic Kondo lattice CeNiAsO by $^{75}$As nuclear magnetic resonance measurements. Our results confirm two successive antiferromagnetic transitions of Ce moments at $T_{N1}=9.0(3)$ K and…

强关联电子 · 物理学 2023-01-06 Fangjun Lu , Xiaobo He , Kangqiao Cheng , Zhuo Wang , Jian Zhang , Yongkang Luo

We report 139La, 57Fe and 75As nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements on powders of the new LaO1-xFxFeAs superconductor for x = 0 and x = 0.1 at temperatures up to 480 K, and compare our…

31^P NMR spectral features in polycrystalline SmCoPO reveal an axially symmetric local magnetic field. At low temperature, the anisotropy of the internal magnetic field increases rapidly, with K_ab increasing faster than that of K_c. The…

强关联电子 · 物理学 2015-05-30 Mayukh Majumder , K. Ghoshray , A. Ghoshray , Anand Pal , V. P. S. Awana

We report on our 51V-NMR study of static and dynamical magnetic properties in the quasi-one-dimensional antiferromagnet BaCo2V2O8. Although the NMR spectrum shows well-defined antiferromagnetic (AF) order in the N\'eel ground state, the AF…

We have performed magnetization and $^{31}$P-NMR measurements on the itinerant ferromagnet LaCoPO (Curie temperature $T_{\rm Curie}\sim 44$ K) with a layered structure in order to investigate spin dynamics in the paramagnetic state. The…

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

A site-selective $^{27}$Al nuclear magnetic resonance (NMR) study is carried out on the Kondo lattice compound CePtAl$_4$Ge$_2$, which crystallizes in a rhombohedral lattice with quasi-two-dimensional Ce layers forming a triangular lattice…

强关联电子 · 物理学 2025-12-11 H. Sakai , S. Shin , S. Kambe , Y. Tokunaga , H. Harima , E. Pomjakushina , T. Park

$^{73}$Ge and $^{59}$Co nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements have been performed on a $^{73}$Ge-enriched single-crystalline sample of the ferromagnetic superconductor UCoGe in the paramagnetic…

强关联电子 · 物理学 2018-03-01 Masahiro Manago , Kenji Ishida , Dai Aoki

We report $^{75}$As nuclear magnetic resonance (NMR) studies on a new iron-based superconductor CaKFe$_4$As$_4$ with $T_{\rm c}$ = 35 K. $^{75}$As NMR spectra show two distinct lines corresponding to the As(1) and As(2) sites close to the K…

The NMR results in iron pnictides BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 are analyzed based on the self-consistent renormalization (SCR) spin fluctuation theory. The temperature dependence of the NMR relaxation rate (T_1)^{-1} as well as the…

超导电性 · 物理学 2013-05-14 Y. Nakai , T. Iye , S. Kitagawa , K. Ishida , S. Kasahara , T. Shibauchi , Y. Matsuda , H. Ikeda , T. Terashima

We report $^{51}$V nuclear magnetic resonance (NMR) studies on single crystals of the multiferroic material FeVO$_4$. The high-temperature Knight shift shows Curie-Weiss behavior, $^{51}K = a/(T + \theta)$, with a large Weiss constant…

强关联电子 · 物理学 2014-05-16 J. Zhang , L. Ma , J. Dai , Y. P. Zhang , Z. Z. He , B. Normand , Weiqiang Yu

Static and dynamical magnetic and electronic properties of the kagome metal Sc$_3$Mn$_3$Al$_7$Si$_5$ have been investigated by $^{27}$Al nuclear magnetic resonance (NMR) measurements. The temperature dependence of Knight shift ($K$) shows a…

SrCo$_2$P$_2$ with a tetragonal structure is known to be a Stoner-enhanced Pauli paramagnetic metal being nearly ferromagnetic. Recently Schmidt et al. [Phys. Rev. B 108, 174415 (2023)] reported that a ferromagnetic ordered state is…

强关联电子 · 物理学 2024-07-30 Nao Furukawa , Qing-Ping Ding , Juan Schmidt , Sergey L. Bud'ko , Paul C. Canfield , Yuji Furukawa

$^{51}$V nuclear magnetic resonance (NMR) and magnetization studies on CeTi$_{1-x}$V$_x$Ge$_3$ have been performed to explore the evolution from the ferromagnetic ($x = 0.113$) to the antiferromagnetic Kondo lattice state ($x = 1$), with…

强关联电子 · 物理学 2019-10-30 M. Majumder , W. Kittler , V. Fritsch , H. v. Löhneysen , H. Yasuoka , M. Baenitz

Local-susceptibility measurements via the NMR shifts of $^{31}$P and $^{51}$V nuclei in the high-pressure phase of (VO)$_{2}$P$_{2}$O$_{7}$ confirmed the existence of a unique alternating antiferromagnetic chain with a zero-field spin gap…

强关联电子 · 物理学 2007-05-23 J. Kikuchi , K. Motoya , T. Saito , M. Azuma , M. Takano

We report a $^{75}$As nuclear magnetic resonance study in LaFeAsO single crystals, which undergoes nematic and antiferromagnetic transitions at $T_\text{nem}\sim 156$ K and $T_N \sim 138$ K, respectively. Below $T_\text{nem}$, the $^{75}$As…

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