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Sigma-phase Fe0.525Cr0.455Ni0.020 alloy was studied by means of M\"ossbauer spectrometry in the temperature range of 5-293 K. The average center shift, <CS>, determined from the recorded M\"ossbauer spectra was shown to significantly…

强关联电子 · 物理学 2022-03-04 Stanisław M. Dubiel , Jan Żukrowski

A C14 Nb0.975Fe2.025 Laves phase compound was investigated aimed at determining the H-T magnetic phase diagram. Magnetization, M, and AC magnetic susceptibility measurements were performed. Concerning the former field-cooled and…

强关联电子 · 物理学 2018-02-23 M. Balanda , S. M. Dubiel

C14 Nb(Fe89.4Al10.6)2 Laves phase intermetallic compound was investigated by DC magnetization (M) measurements performed in the temperature (T) interval of 20 to 175 K,under an applied magnetic field (H) ranging between 50 and 1250 Oe.…

材料科学 · 物理学 2019-12-25 Stanisław M. Dubiel , Israel Felner

Lattice dynamics in a sigma-Fe60V40 compound, which shows a re-entrant magnetism and orders ferromagnetic ally at ca. 170K, was investigated with the Mossbauer spectroscopy in the temperature interval of 5-300 K. Two relevant spectral…

强关联电子 · 物理学 2017-06-20 Stanislaw M. Dubiel , Jan Zukrowski

Sigma-phase Fe65.9V34.1 alloy was investigated with the M\"ossbauer spectroscopy. M\"ossbauer spectra were recorded in the temperature interval of 80-300 K. Their analysis in terms of the hyperfine distribution protocol yielded the average…

强关联电子 · 物理学 2016-01-05 J. Żukrowski , S. M. Dubiel

Based on the available literature reviewed are results pertinent to the effect of magnetism on lattice dynamics obtained by M\"ossbauer spectroscopy at 57Fe and 119Sn probe atoms. Presented and discussed are sigma-phase Fe-Cr, Fe-V,…

强关联电子 · 物理学 2022-07-13 Stanisław M. Dubiel

A series of sigma-phase Fe_{100-x}V_x samples with 34.4 < x < 59.0 were investigated by neutron and X-ray diffraction and Mossbauer spectroscopy (MS) techniques. The first two methods were used for verification of the transformation from…

Anomalies in the temperature dependences of the recoil-free factor, f, and the average center shift, <CS>, measured by 57-Fe Mossbauer Spectroscopy, were observed for the first time in the archetype of the \sigma-phase alloys system, Fe-Cr.…

材料科学 · 物理学 2015-06-04 S. M. Dubiel , J. Cieslak , M. Reissner

57Fe M\"{o}ssbauer spectroscopy was applied to an iron-based layered compound CeFePO. At temperatures from 9.4 to 293 K, no magnetic splitting was observed in the M\"ossbauer spectra of CeFePO indicating a paramagnetic phase of the Fe…

强关联电子 · 物理学 2012-05-25 Tetsuro Nakamura , Takashi Yamamoto , Masanori Matoba , Yasuaki Einaga , Yoichi Kamihara

Low temperature M\"ossbauer spectroscopic and magnetization measurements were performed on a crystalline sample of Fe-gluconate. Fe atoms were revealed to exist in two phases i.e. a major (90-94 pct.) and a minor (6-10 pct.). Based on…

化学物理 · 物理学 2020-04-06 Stanisław M. Dubiel , Jan Żukrowski , Maria Bałanda

A single-crystal sample of a DO3-ordered Fe3Si compound was studied by means of the 57Fe M\"ossbauer spectroscopy. Spectra have been recorded in a transmission geometry in the temperature range between 5 and 850 K. They have been analyzed…

强关联电子 · 物理学 2020-01-09 S. M. Dubiel , J. Żukrowski

57Fe site Mossbauer Spectroscopy (MS) was used to investigate a dynamics of 57Fe atoms embedded into chromium lattice as impurities. From the Mossbauer spectra recorded in the temperature range of 80 to 350 K, a temperature dependence of…

材料科学 · 物理学 2015-05-13 S. M. Dubiel , J. Zukrowski , J. Cieslak

We present a systematic study of transport and thermodynamic properties of the Laves phase system Nb$_{1-y}$Fe$_{2+y}$. Our measurements confirm that Fe-rich samples, as well as those rich in Nb (for $\mid y\mid\geq 0.02$), show bulk…

强关联电子 · 物理学 2012-02-08 D. Moroni-Klementowicz , M. Brando , C. Albrecht , W. J. Duncan , F. M. Grosche , D. Gruener , G. Kreiner

Amorphous Fe-gluconate was studied by means of the X-ray diffraction and M\"ossbauer spectroscopy. Spectra measured in the temperature range between 78 and 295 K were analysed in terms of three doublets using a thin absorber approximation…

材料科学 · 物理学 2020-06-02 Stanisław M. Dubiel , Łukasz Gondek , Jan Żukrowski

In this paper we present detailed M\"ossbauer spectroscopy study of structural and magnetic properties of the undoped parent compound CaFe$_2$As$_2$ single crystal. By fitting the temperature dependence of the hyperfine magnetic field we…

超导电性 · 物理学 2011-06-10 Zhiwei Li , Xiaoming Ma , Hua Pang , Fashen Li

Polycrystalline samples of FeSe$_{0.5}$Te$_{0.5}$ were synthesized using a conventional solid-state reaction method. The onset of bulk superconductivity transition was confirmed by SQUID magnetometry at 12.5~K. $^{57}$Fe M\"ossbauer spectra…

超导电性 · 物理学 2015-05-19 J. Lindén , J. -P. Libäck , M. Karppinen , E. -L. Rautama , H. Yamauchi

We report on the magnetic behavior of oxygen deficient LaFeAsO1-x (x-0.10) compound, prepared by one-step synthesis, which crystallizes in the tetragonal (S.G. P4/nmm) structure at room temperature. Resistivity measurements show a strong…

超导电性 · 物理学 2015-05-13 Israel Nowik , Israel Felner , V. P. S. Awana , Arpita Vajpayee , H. Kishan

We report measurements of 57Fe Mossbauer spectra for RFe2Zn20 ( R = Lu, Yb, Gd) from ~ 4.5 K to room temperature. The obtained isomer shift values are very similar for all three compounds, their temperature dependence was analyzed within…

材料科学 · 物理学 2015-09-02 Sergey L. Bud'ko , Tai Kong , Xiaoming Ma , Paul C Canfield

Optical and magneto-optical properties of magnetic materials have been widely exploited to characterize magnetic structures and phenomena, however, their temperature dependence is not well understood. This study implements the supercell…

材料科学 · 物理学 2024-04-05 Kisung Kang , David G. Cahill , André Schleife

The low temperature lattice structure and magnetic properties of Co$_{2.75}$Fe$_{0.25}$O$_4$ ferrite have been investigated using experimental results from synchrotron x-ray diffraction (SXRD), dc magnetization, ac susceptibility, neutron…

强关联电子 · 物理学 2020-07-09 R. N. Bhowmik , Amit Kumar , A. K. Sinha , S. M. Yusuf
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