Magnetic properties of single crystalline itinerant ferromagnet 
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Lamichhane, Tej N.; Li, Xiang; Lin, Qisheng; Pandey, Tribhuwan; Parker, David; Kim, Tae Hoon; Zhou, Lin; Kramer, M. J.; Bud’ko, Sergey L.; Canfield, Paul C.

doi:10.1103/physrevmaterials.2.084408

Cited by 36 publications

(36 citation statements)

References 45 publications

(60 reference statements)

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“…4(b), one can see that all the curves are not straight or parallel even in the high-field region, which suggests that the ideal mean-field theory cannot describe the critical behavior perfectly in FTS. This is not surprising because Coulomb correlation and spin fluctuations are neglected in the mean-field theory, while they can be significant in an itinerant ferromagnet [35]. Moreover, these curves measured around the phase transition temperature provide other information.…”

Section: Critical Behaviormentioning

confidence: 93%

Critical behavior of intercalated quasi-van der Waals ferromagnet Fe0.26TaS2

Zhang

Yuan

Wang

et al. 2019

Phys. Rev. Materials

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In the present work, single-crystalline quasi-van der Waals ferromagnet Fe 0.26 TaS 2 was successfully synthesized with Fe atoms intercalated at ordered positions between TaS 2 layers. Its critical behavior was systematically studied by measuring the magnetization around ferromagnetic to paramagnetic phase transition temperature, T C ∼ 100.7 K, under different magnetic fields. The critical exponent β for the spontaneous magnetization below T C , γ for the inverse initial susceptibility above T C , and δ for the magnetic isotherm at T C were determined with modified Arrott plots, the Kouvel-Fisher method, the Widom scaling law, and critical isotherm analysis, and found to be the following values: β = 0.459(6), γ = 1.205(11), and δ = 3.69(1). The obtained critical exponents are self-consistent and follow the scaling equation, indicating the reliability and intrinsicality of these parameters. A close analysis within the framework of renormalization group theory reveals that the spin coupling inside Fe 0.26 TaS 2 crystal is of the three-dimensional Heisenberg ({d : n} = {3 : 3}) type with long-range magnetic interaction and that the exchange interaction decays with distance as J (r) ∼ r −4.71 .

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Section: Critical Behaviormentioning

confidence: 93%

Critical behavior of intercalated quasi-van der Waals ferromagnet Fe0.26TaS2

Zhang

Yuan

Wang

et al. 2019

Phys. Rev. Materials

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“…To identify the crystallographic orientation of the AlMn 2 B 2 single crystals, we employed the monochromatic X-ray diffraction from the crystallographic surfaces in the Bragg-Brentano geometry [3,16]. The direction perpendicular to the plate was identified to be [010] since a family of {020} lines were observed in the diffraction pattern as shown in blue curve in Fig.…”

Section: Crystal Structure and Stoichiometrymentioning

confidence: 99%

“…AlT 2 B 2 compounds are interesting, specially for potential rare earth free magnetocaloric materials and soft magnetic materials. AlFe 2 B 2 is ferromagnetic and studied for its magneto-caloric and anisotropic magnetic properties [2][3][4]. Understanding the magnetic properties of the neighbouring, isostructural compounds can provide further insight in to the series as well as how to tune the magnetocaloric property of the AlFe 2 B 2 via substitution.…”

Section: Introductionmentioning

confidence: 99%

“…We find that AlMn 2 B 2 is a metallic antiferromagnet with a transition temperature of T N = 313 ± 2 K. In addition we find that AlMn 2 B 2 has features associated with pseudotwo-dimensional magnets. Solution growth is a powerful tool even for compounds with high melting elements like B [3,9,10]. The major difficulty associated with solution growth is finding an initial composition that allows for growth of the single phase, desired compound.…”

Section: Introductionmentioning

confidence: 99%

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Near room temperature antiferromagnetic ordering with a potential low-dimensional magnetism in AlMn2B2

Lamichhane

Rana

Lin

et al. 2019

Phys. Rev. Materials

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We present self flux growth and characterization of single crystalline AlMn2B2. It is an orthorhombic (space group Cmmm), layered material with a plate like morphology. The anisotropic bulk magnetization data, electrical transport and 11 B nuclear magnetic resonance(NMR) data revealed an antiferromagnetic (AFM) transition at 313 ± 2 K. In the magnetization data, there is also a broad local maximum significantly above the AFM transition that could be a signature of low dimensional magnetic interactions in AlMn2B2. Magnetic frustration and magnetocaloric effect in AlFe2−xMnxB2(x= 0-0.5) ribbons," Journal of Physics D: Applied Physics 48, 335001 (2015).

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“…Pressure values at low temperature were inferred from the T c (p) of lead 29 . Pressure values at higher temperature were estimated by linear interpolation between the room-temperature pressure p 300K and low-temperature pressure p T ≤90K values [30][31][32] . p 300K values were inferred from the 300 K resistivity ratio ρ(p)/ρ(0 GPa) of lead 33 and p T ≤90K values were inferred from the T c (p) of lead 29 .…”

Section: A Experimental Detailsmentioning

confidence: 99%

Pressure-induced multiple phase transformations of the BaBi3 superconductor

Ribeiro

Kaluarachchi

et al. 2018

Phys. Rev. B

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Measurements of temperature-dependent resistance and magnetization under hydrostatic pressures up to 2.13 GPa are reported for single-crystalline, superconducting BaBi3. A temperaturepressure phase diagram is determined and the results suggest three different superconducting phases α, β, and γ in the studied pressure range. We further show that occurrence of the three superconducting phases is intuitively linked to phase transitions at higher temperature which are likely first order in nature. Tp, which separates phase α from β and γ, is associated with an abrupt resistance change as pressure is increased from 0.27 GPa to 0.33 GPa. Above 0.33 GPa, an "S-shape" anomaly in the temperature-dependent resistance curve, TS, is observed and associated with the transition between the β and γ phases. Further increasing of pressure above 1.05 GPa suppresses this transition and BaBi3 stays in γ phase over the whole investigated temperature range. These high-temperature anomalies are likely related to structural degrees of freedom. With the α phase being the ambient-pressure tetragonal structure (P 4/mmm), our first-principle calculations suggest the β phase to be cubic structure (P m − 3m) and the γ phase to be a distorted tetragonal structure where the Bi atoms are moved out of the face-centered position. Finally, an analysis of the evolution of the superconducting upper critical field with pressure further confirms these transitions in the superconducting state and suggests a possible change of band structure or a Lifshitz transition near 1.54 GPa in γ phase. Given the large atomic numbers of both Ba and Bi, our results establish BaBi3 as a good candidate for the study of the interplay of structure with superconductivity in the presence of strong spin-orbit coupling.

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Magnetic properties of single crystalline itinerant ferromagnet AlFe2B2

Cited by 36 publications

References 45 publications

Critical behavior of intercalated quasi-van der Waals ferromagnet Fe0.26TaS2

Critical behavior of intercalated quasi-van der Waals ferromagnet Fe0.26TaS2

Near room temperature antiferromagnetic ordering with a potential low-dimensional magnetism in AlMn2B2

Pressure-induced multiple phase transformations of the BaBi3 superconductor

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