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We report $^{7}$Li pulsed NMR measurements in polycrystalline and single crystal samples of the quasi one-dimensional S=1 antiferromagnet LiVGe$_2$O$_6$, whose AF transition temperature is $T_{\text{N}}\simeq 24.5$ K. The field ($B_0$) and…

We report a high frequency/high magnetic field electron spin resonance (HF-ESR) spectroscopy study in the sub-THz frequency domain of the two representatives of the family of magnetic topological insulators…

Strongly Correlated Electrons · Physics 2022-02-03 A. Alfonsov , K. Mehlawat , A. Zeugner , A. Isaeva , B. Büchner , V. Kataev

8~nm epsilon-Fe2O3 nanoparticles exhibit a spin reorientation transition that begins at 150 K which is a hallmark of this unique iron-oxide polymorph. We find that the change from the high to low temperature magnetic structures has been…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 Richard Jones , Rachel Nickel , Palash K. Manna , J. Hilman , Johan van Lierop

We conducted a systematic angular dependence study of nonlinear magnetoresistance in NiFe/Pt bilayers at variable temperature and field using the Wheatstone bridge method. We successfully disentangled magnon magnetoresistance from other…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 Yanjun Xu , Yumeng Yang , Ziyan Luo , Yihong Wu

Neutron and synchrotron resonant X-ray magnetic scattering (RXMS) complemented by heat capacity and resistivity measurements reveal the evolution of the magnetic structures of Fe and Ce sublattices in single crystal CeFeAsO. The RXMS of…

Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on…

Single crystals of EuNiGe$_3$ crystallizing in the non-centrosymmetric BaNiSn$_3$-type structure have been grown using In flux, enabling us to explore the anisotropic magnetic properties which was not possible with previously reported…

Strongly Correlated Electrons · Physics 2014-02-04 Arvind Maurya , P. Bonville , A. Thamizhavel , S. K. Dhar

Through systematics density functional calculations, the mechanism of the substrate induced spin reorientation transition in FePc/O-Cu(110) was explained in terms of charge transfer and rearrangement of Fe-d orbitals. Moreover, we found…

Materials Science · Physics 2014-01-14 Jun Hu , Ruqian Wu

Recently we have demonstrated the presence of spin-orbit toque in FeMn/Pt multilayers which, in combination with the anisotropy field, is able to rotate its magnetization consecutively from 0o to 360o without any external field. Here, we…

Materials Science · Physics 2017-06-28 Ziyan Luo , Yumeng Yang , Yanjun Xu , Mengzhen Zhang , Baoxi Xu , Jingsheng Chen , Yihong Wu

Static and dynamic properties of the quasi-two-dimensional antiferromagnet K$_2$V$_3$O$_8$ have been investigated by $^{51}$V-NMR experiments on nonmagnetic V$^{5+}$ sites. Above the structural transition temperature $T_{\rm{S}}$ = 115 K,…

Strongly Correlated Electrons · Physics 2019-10-01 H. Takeda , H. Yasuoka , M. Yoshida , M. Takigawa , N. J. Ghimire , D. Mandrus , B. C. Sales

We use above-bandgap optical excitation, via a 1047 nm laser, to hyperpolarize the $^{31}$P spins in low-doped (N$_D =6\times10^{15}$ cm$^{-3}$) natural abundance silicon at 4.2 K and 6.7 T, and inductively detect the resulting NMR signal.…

Mesoscale and Nanoscale Physics · Physics 2018-11-21 P. Gumann , H. Haas , S. Sheldon , L. Zhu , M. L. W. Thewalt , D. G. Cory , C. Ramanathan

We use a microscopic Slater-Koster tight-binding model with short-range exchange and atomic spin-orbit interactions that realistically captures generic features of ferromagnetic metal nanoparticles to address the mesoscopic physics of…

Condensed Matter · Physics 2009-11-07 A. Cehovin , C. M. Canali , A. H. MacDonald

The Fe(1+x)Sb compound has been synthesized close to stoichiometry with x = 0.023(8). The compound was investigated by 57Fe M\"ossbauer spectroscopy in the temperature range 4.2 - 300 K. The antiferromagnetic ordering temperature was found…

Strongly Correlated Electrons · Physics 2016-01-20 K. Komedera , A. K. Jasek , A. Blachowski , K. Ruebenbauer , A. Krzton-Maziopa

The occurrence of a noncollinear magnetic structure at a Mn monolayer grown epitaxially on Fe(100) is predicted theoretically, using spinor density-functional theory, and observed experimentally, using x-ray magnetic circular dichroism…

We report on the chemical structure and spin Hall magnetoresistance (SMR) in epitaxial $\alpha$-Fe$_2$O$_3$(hematite)(0001)/Pt(111) bilayers with hematite thicknesses of 6 nm and 15 nm grown by molecular beam epitaxy on a MgO(111)…

Antiferromagnetic materials promise improved performance for spintronic applications, as they are robust against external magnetic field perturbations and allow for faster magnetization dynamics compared to ferromagnets. The direct…

A comparative analysis of the properties of FeSe${}_{1-x}$Te${}_{x}$ crystals in the range of x values of about 0.4 and pure FeSe crystals is presented. We found that the anomaly in R (T) at the structural transition for the former differs…

Superconductivity · Physics 2021-12-09 Y. A. Ovchenkov , D. A. Chareev , D. E. Presnov , O. S. Volkova , A. N. Vasiliev

Spin-orbit coupling (SOC) is expected to partly determine the topologically nontrivial electronic structure of heavy half-Heusler ternary compounds. However, to date, attempts to experimentally observe either the strength of SOC or how it…

Strongly Correlated Electrons · Physics 2016-03-01 Xiaoming Zhang , Zhipeng Hou , Yue Wang , Guizhou Xu , Chenglong Shi , EnKe Liu , Xuekui Xi , Wenhong Wang , Guangheng Wu , Xi-xiang Zhang

We have investigated magnetic field dependences of a ferroelectric incommensurate-helimagnetic order in a trigonal magneto-electric (ME) multiferroic CuFe1-xAlxO2 with x=0.015, which exhibits the ferroelectric phase as a ground state, by…

Strongly Correlated Electrons · Physics 2015-05-14 T. Nakajima , S. Mitsuda , S. Kanetsuki , M. Yamano , S. Iwamoto , Y. Yoshida , H. Mitamura , Y. Sawai , M. Tokunaga , K. Kindo , K. Prokes , A. Podlesnyak

We present a detailed $^{31}$P nuclear magnetic resonance (NMR) study of the molecular rotation in the compound [Cu(pz)$_{2}$(2-HOpy)$_{2}$](PF$_{6}$)$_{2}$, where pz = C$_4$H$_4$N$_2$ and 2-HOpy = C$_5$H$_4$NHO. Here, a freezing of the…

Strongly Correlated Electrons · Physics 2021-01-26 D. Opherden , F. Bärtl , Sh. Yamamoto , Z. T. Zhang , S. Luther , S. Molatta , J. Wosnitza , M. Baenitz , I. Heinmaa , R. Stern , C. P. Landee , H. Kühne