Extended Magnetic Dome Induced by Low Pressures in Superconducting 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>FeSe</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">S</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>

Holenstein, Stefan; Stahl, Juliane; Shermadini, Z.; Simutis, Gediminas; Grinenko, V.; Чареев, Д. А.; Khasanov, R.; Orain, J.-C.; Amato, A.; Klauß, H.‐H.; Morenzoni, E.; Johrendt, Dirk; Luetkens, H.

doi:10.1103/physrevlett.123.147001

Cited by 21 publications

(20 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…under pressure. It is also worth mentioning that no signatures of an AFM order were observed in 1/T 1 T as well as the NMR spectra, in contrast to the recent muon spin rotation (μSR) report on FeSe 0.89 S 0.11 under pressure [21]. It is not clear, at present, the reason why the AFM state reported by the μSR measurements is not detected by our NMR and resistivity measurements.…”

contrasting

confidence: 97%

“…With the application of pressure on FeSe 1−x S x , the nematic state can also be suppressed, and an AFM state is induced [19,20]. The three-dimensional T -p-x phase diagram up to p = 8 GPa has been reported by Matsuura et al [19] in which the AFM ordered phase shifts to higher p with increasing x, although a different phase diagram of FeSe 0.89 S 0.11 having a wide AFM region was recently reported [21]. Recent resistivity measurements under high magnetic fields on FeSe 0.89 S 0.11 under pressure reported a lack of nematic quantum criticality and the presence of Fermi-liquid behavior [22].…”

mentioning

confidence: 88%

See 1 more Smart Citation

Impact of nematicity on the relationship between antiferromagnetic fluctuations and superconductivity in FeSe0.91S0.09 under pressure

Rana

Wiecki

et al. 2020

Phys. Rev. B

View full text Add to dashboard Cite

The sulfur-substituted FeSe system, FeSe1−xSx, provides a versatile platform for studying the relationship among nematicity, antiferromagnetism, and superconductivity. Here, by nuclear magnetic resonance (NMR) and resistivity measurements up to 4.73 GPa on FeSe0.91S0.09, we established the pressure-(p-) temperature (T) phase diagram in which the nematic state is suppressed with pressure showing a nematic quantum phase transition (QPT) around p=0.5GPa, two superconductivity (SC) regions separated by the QPT appear, and antiferromagnetic (AFM) phase emerges above ∼3.3GPa. From the NMR results up to 2.1 GPa, AFM fluctuations are revealed to be characterized by the stripe-type wave vector which remains the same for the two SC regions. Furthermore, the electronic state is found to change in character from non-Fermi liquid to Fermi liquid around the nematic QPT and persists up to ∼2.1GPa. In addition, although the AFM fluctuations correlate with Tc in both SC states, demonstrating the importance of the AFM fluctuations for the appearance of SC in the system, we found that, when nematic order is absent, Tc is strongly correlated with the AFM fluctuations whereas Tc weakly depends on the AFM fluctuations when nematic order is present. Our findings on FeSe0.91S0.09 were shown to be applied to the whole FeSe1−xSx system and provide an insight into the relationship between AFM fluctuations and SC in Fe-based superconductors.

show abstract

contrasting

confidence: 97%

mentioning

confidence: 88%

Impact of nematicity on the relationship between antiferromagnetic fluctuations and superconductivity in FeSe0.91S0.09 under pressure

Rana

Wiecki

et al. 2020

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…Given that in KFe 2 As 2 bulk superconductivity is observed up to at least P 6 GPa [10], we conclude that for P > 1.8 GPa bulk magnetism and bulk superconductivity coexist within the whole sample volume. Note that a similar type of bulk coexistence between the antiferromagnetic order and superconductivity was previously reported for various compounds belonging to the so-called 11 [29][30][31][32][33][34][35], 122 [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51], 1144 [52][53][54][55], and 21311 [56] families of Fe-SCs.…”

supporting

confidence: 79%

Pressure-induced magnetism in the iron-based superconductors AFe2As2 ( A=K , Cs, Rb)

et al. 2020

View full text Add to dashboard Cite

The magnetic properties of iron-based superconductors AFe 2 As 2 (A = K, Cs, and Rb), which are characterized by the V-shaped dependence of the critical temperature (T c) on pressure (P), were studied by means of the muon spin rotation/relaxation technique. In all three systems studied the magnetism was found to appear for pressures slightly below the critical one (P c), i.e., at pressure where T c (P) changes the slope. Rather than competing, magnetism and superconductivity in AFe 2 As 2 are coexisting at the P P c pressure region. Our results support the scenario of a transition from one pairing state to another, with different symmetries on either side of P c .

show abstract

“…Similar ideas were recently also brought forward by theoretical considerations. [ 175 ] However, the notion of a nematic quantum‐critical point in the absence of magnetism was recently questioned by μSR measurements under pressure [ 176 ] on samples with the same S concentration, that is, FeSe 0.89 S 0.11 . Their main finding was that the magnetic dome spans to pressures as low as 0.6 GPa, which is much lower than previously reported and right in the same pressure range of the previously proposed

p_{c}

for a purely nematic quantum‐critical point.…”

Section: Effect Of Hydrostatic Pressure On Superconductivity Magnetimentioning

confidence: 99%

Hydrostatic and Uniaxial Pressure Tuning of Iron‐Based Superconductors: Insights into Superconductivity, Magnetism, Nematicity, and Collapsed Tetragonal Transitions

Gati

Bud’ko

et al. 2020

Annalen der Physik

View full text Add to dashboard Cite

Iron-based superconductors are well-known for their intriguing phase diagrams, which manifest a complex interplay of electronic, magnetic, and structural degrees of freedom. Among the phase transitions observed are superconducting, magnetic, and several types of structural transitions, including a tetragonal-to-orthorhombic and a collapsed-tetragonal transition. In particular, the widely observed tetragonal-to-orthorhombic transition is believed to be a result of an electronic order that is coupled to the crystalline lattice and is, thus, referred to as nematic transition. Nematicity is therefore a prominent feature of these materials, which signals the importance of the coupling of electronic and lattice properties. Correspondingly, these systems are particularly susceptible to tuning via pressure (hydrostatic, uniaxial, or some combination). Efforts to probe the phase diagrams of pressure-tuned iron-based superconductors are reviewed with a strong focus on recent insights into the phase diagrams of several members of this material class under hydrostatic pressure. These studies on FeSe, Ba(Fe 1−x Co x) 2 As 2 , Ca(Fe 1−x Co x) 2 As 2 , and CaK(Fe 1−x Ni x) 4 As 4 are, to a significant extent, made possible by advances of what measurements can be adapted to their use under differing pressure environments. The potential impact of these tools for the study of the wider class of strongly correlated electron systems is pointed out.

show abstract

Extended Magnetic Dome Induced by Low Pressures in Superconducting FeSe1−xSx

Cited by 21 publications

References 73 publications

Impact of nematicity on the relationship between antiferromagnetic fluctuations and superconductivity in FeSe0.91S0.09 under pressure

Impact of nematicity on the relationship between antiferromagnetic fluctuations and superconductivity in FeSe0.91S0.09 under pressure

Pressure-induced magnetism in the iron-based superconductors AFe2As2 ( A=K , Cs, Rb)

Hydrostatic and Uniaxial Pressure Tuning of Iron‐Based Superconductors: Insights into Superconductivity, Magnetism, Nematicity, and Collapsed Tetragonal Transitions

Contact Info

Product

Resources

About