Fese crystal field
WebApr 30, 2024 · Iron-based anode materials, such as Fe2O3 and FeSe2 have attracted widespread attention for lithium-ion batteries due to their high capacities. However, the capacity decays seriously because of poor conductivity and severe volume expansion. Designing nanostructures combined with carbon are effective means to improve cycling … WebApr 28, 2024 · The field-dependent Hall resistivity for four typical selected samples FeS, FeS 0.98 Te 0.02, FeS 0.95 Te 0.05, and FeS 0.89 Te 0.11 single crystals are shown in Fig. 4 a–d, respectively. ... This result is quite similar to that in S -oped FeSe single crystal , where the value of MR for FeSe is obviously larger than that of FeSe 0.86 S 0.14.
Fese crystal field
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WebDec 2, 2014 · Here, thin FeSe x Te 1-x films with the Se content covering the full range (0 ≤ x ≤ 1) were fabricated by using pulsed laser deposition method. Crystal structure analysis shows that all films ... WebNov 25, 2024 · A single orthorhombic FeSe 2 phase was successfully synthesized for x = 0, 0.2, and 0.4; however, a secondary phase (Fe 7 S 8 or FeS 2) was identified for x = 0.6 and 0.8. The lattice parameters decreased gradually with an increase in S content for x < 0.8, suggesting that S atoms were substituted at the Se sites in the FeSe 2 crystal
WebJul 10, 2015 · There are several common features in FeSe and the FeAs-family if we carefully examine their physical properties. Figure 1(a) displays the temperature dependence of electrical resistivity and Seebeck coefficient (thermopower) of FeSe superconductor, and figure 1(b) is the resistivity curve for an electron-doped (CaPr)Fe 2 … WebApr 1, 2010 · Section snippets Experimental description. Polycrystalline FeSe 1−x samples were synthesized using the solid-state reaction method similar to that used in Ref. [2]. High purity powder of desired selenium and iron compositions (FeSe 1−x with x ∼ 0.03) were mixed and grounded.The grounded powder was cold-pressed into discs, and the discs …
WebFeb 19, 2015 · The electric resistivity of single crystalline Fe-based superconductors FeSe and FeSe Te was measured in pulsed magnetic fields up to 55 T. Te-doped iron … WebSep 4, 2015 · We report successful growth of flux free large single crystals of superconducting FeSe 1/2 Te 1/2 with typical dimensions of up to few cm. The AC and …
WebDec 2, 2014 · Here, thin FeSe x Te 1-x films with the Se content covering the full range (0 ≤ x ≤ 1) were fabricated by using pulsed laser deposition method. Crystal structure …
WebOct 31, 2024 · Moreover, it is apparent that the enhancement of J c in FeSe-11111 films is by Mn doping under both out-of-plane and in-plane magnetic fields. For instance, the resultant value of J c increases from 0.9 to 5.1 × 10 5 A cm −2 under 9 T (H//c) at 10 K. Even for the self- field J c, the performance of Mn-doped films is superior to Mn-free films ... shoe carnival west melbourne flWebAug 1, 2024 · Here we report the magnetotransport properties of the high-quality FeSe crystal measured in a wide temperature range and magnetic fields up to 50 T. The … race of faithWebAug 15, 2014 · In a recent work, Abdel-Hafiez et al. [1] we have determined the temperature dependence of the lower critical field H c 1 (T) of a FeSe single crystal under static magnetic fields H parallel to the crystallographic c axis. The temperature dependence of the first vortex penetration field has been experimentally obtained by two independent … race off crosswordWebOct 1, 2024 · There is a dramatic decrease of resistivity at 44.4 K, which is roughly consistent with the Tc obtained from the χ – T curve. The resistivity reaches zero at 38.5 K. Fig. 2. (a) Temperature dependent magnetic susceptibility of intercalated FeSe single crystal measured in ZFC and FC modes under a magnetic field of 3 mT. shoe carnival white heelsWebFeb 2, 2024 · Another FeSe sample from the same batch (figure 2(a)), probed down to 2 K does not reveal same feature. The SMP in FeSe single crystal at low temperatures and … shoe carnival women\u0027s pumpsWebSep 4, 2015 · We report successful growth of flux free large single crystals of superconducting FeSe 1/2 Te 1/2 with typical dimensions of up to few cm. The AC and DC magnetic measurements revealed the superconducting transition temperature (T c) value of around 11.5K and the isothermal MH showed typical type-II superconducting behavior. … race of faith pretoriaWebOct 18, 2024 · Figure 3 (a)–(c) Temperature dependences of the upper critical field B c 2 (T) for the three selected FeSe single crystals.Diamonds and circles represent the cases … shoe carnival women\u0027s loafers