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We show that antiferromagnetic susceptibility in ferritin increases with temperature between 4.2 K and 180 K (i. e. below the N\'{e}el temperature) when taken as the derivative of the magnetization at high fields ($30\times10^4$ Oe). This…

Strongly Correlated Electrons · Physics 2009-11-13 N. J. O. Silva , A. Millan , F. Palacio , E. Kampert , U. Zeitler , H. Rakoto , V. S. Amaral

The magnetic behaviour of SmN has been investigated in stoichiometric polycrystalline films. All samples show ferromagnetic order with Curie temperature (T_c) of 27 +/- 3 K, evidenced by the occurrence of hysteresis below T_c. The…

Strongly Correlated Electrons · Physics 2009-11-13 C. Meyer , B. J. Ruck , J. Zhong , S. Granville , A. R. H. Preston , G. V. M. Williams , H. J. Trodahl

In this study, I have investigated the magnetic and critical properties of manganese pyrochlore fluoride NaSrMn$_{2}$F$_{7}$, which exhibits a glass transition at T$_\text{f}$$=$2.5 (K) due to charge disorder. A DFT+$U$+SOC framework is…

Strongly Correlated Electrons · Physics 2023-05-09 Mohammad Amirabbasi

We measure the transport properties of mechanically strained single crystals of BaFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$ over a wide range of $x$. The N\'eel transition is extremely sensitive to stress and this sensitivity increases as optimal…

Superconductivity · Physics 2015-06-05 H-. H. Kuo , James G. Analytis , J. -H. Chu , R. M. Fernandes , J. Schmalian , I. R. Fisher

The magnetic response of CaK(Fe$_{0.949}$Ni$_{0.051}$)$_4$As$_4$ was investigated by means of the muon-spin rotation/relaxation. The long-range commensurate magnetic order sets in below the N\'{e}el temperature $T_{\rm N}= 50.0(5)$~K. The…

The chiral helimagnet Cr1/3NbS2 has been investigated by magnetic, transport and thermal properties measurements on single crystals and by first principles electronic structure calculations. From the measured field and temperature…

Strongly Correlated Electrons · Physics 2015-03-25 N. J. Ghimire , M. A. McGuire , D. S. Parker , B. Sipos , S. Tang , J. -Q. Yan , B. C. Sales , D. Mandrus

We have measured near normal incidence far infrared (FIR) reflectivity spectra of a single crystal of TbMnO3 from 10K to 300K in the spectral range of 50 cm$^{-1}$ to 700 cm$^{-1}$. Fifteen transverse optic (TO) and longitudinal optic (LO)…

Materials Science · Physics 2015-05-13 Pradeep Kumar , Surajit Saha , C. R. Serrao , A. K. Sood , C. N. R. Rao

In this work we report results of ferromagnetic resonance studies of a 6% 15 nm (Ga,Mn)As layer, deposited on (001)-oriented GaAs. The measurements were performed with in-plane oriented magnetic field, in the temperature range between 5K…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 M. W. Gutowski , W. Stefanowicz , O. Proselkov , J. Sadowski , M. Sawicki , R. Zuberek

Using ferromagnetic-resonance spectroscopy (FMR), we investigate the anisotropic properties of epitaxial 3 nmPt/2 nmAg/10 nmFe/10 nmAg/GaAs(001) films in fully saturated meta-stable states at temperatures ranging from 70 K to 280 K. By…

A single-phase polycrystalline La0.5Ba0.5CoO3-d sample was synthesized by microwave irradiation within 20 minutes of processing time and its structural, magnetic, electrical, and magnetostrictive properties were investigated. While the…

Materials Science · Physics 2024-06-12 M. Manikandan , A. Ghosh , R. Mahendiran

Polycrystalline ceramic samples and a single crystal of EuTiO3 have been investigated by Raman spectroscopy in the temperature range 80-300 K. Although synchrotron XRD data clearly indicated the cubic to tetragonal phase transition around…

Materials Science · Physics 2021-04-21 P. Pappas , E. Liarokapis , M. Calamiotou , A. Bussmann-Holder

We employ polarization-resolved Raman spectroscopy and first-principles phonon calculations to study the lattice dynamics and spin-phonon coupling in the kagome spin ice compound HoAgGe. Upon cooling, HoAgGe shows transitions from a…

Strongly Correlated Electrons · Physics 2025-03-11 Shangfei Wu , Lingxiao Zhao , Wei Song , Mingshu Tan , Feng Jin , Tianping Ying , Jia-Xin Yin , Qingming Zhang

We have carried out a detailed experimental investigation on CuO using dielectric constant, ac resistance, Raman spectroscopy and X-ray diffraction measurements at high pressures and room temperature. Both dielectric constant and dielectric…

Ruthenium-based perovskite systems are attractive because their Structural, electronic and magnetic properties can be systematically engineered. SrRuO$_3$/SrTiO$_3$ superlattice, with its period consisting of one unit cell each, is very…

Strongly Correlated Electrons · Physics 2012-10-15 Mingqiang Gu , Qiyun Xie , Xuan Shen , Rubin Xie , Jianli Wang , Gang Tang , Di Wu , G. P. Zhang , X. S. Wu

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.…

Materials Science · Physics 2015-06-04 S. M. Dubiel , J. Cieslak , M. Reissner

We have investigated the temperature evolution of magnetism and its interrelation with structural parameters in perovskite-based layered compound Sr$_2$IrO$_4$, which is believed to be a $J_{eff}$ = 1/2 Mott insulator. The structural…

Strongly Correlated Electrons · Physics 2014-12-15 Imtiaz Noor Bhatti , R. Rawat , A. Banerjee , A. K. Pramanik

Structural, magnetic, electrical transport, and heat capacity data are reported for single crystals of TlFe1.6Se2. This compound crystallizes in a tetragonal structure similar to the ThCr2Si2 structure, but with vacancies in the Fe layer.…

Magnetic resonance spectra of EuTiO3 in both bulk and thin film form were taken at temperatures from 3-350 K and microwave frequencies from 9.2-9.8 and 34 GHz. In the paramagnetic phase, magnetic resonance spectra are determined by magnetic…

Materials Science · Physics 2017-03-08 V. V. Laguta , S. Kamba , M. Maryško , B. Andrzejewski , M. Kachlík , K. Maca , J. H. Lee , D. G. Schlom

In this paper, we present the spin-phonon coupling and dielectric response of nano-crystalline Pr$_2$CoMnO$_6$ employing Raman and dielectric spectroscopic study. Pr$_2$CoMnO$_6$ is a manganite compound , it undergoes a paramagnetic to…

Strongly Correlated Electrons · Physics 2021-04-13 Ilyas Noor Bhatti , Imtiaz Noor Bhatti

This paper presents structural, detailed magnetic, and exchange bias studies in polycrystalline Ba$_{2}$ScRuO$_{6}$ synthesized at ambient pressure. In contrast to its strontium analogue, this material crystallizes in a 6L hexagonal…

Materials Science · Physics 2023-04-28 Prachi Mohanty , Sourav Marik , R. P. Singh