Competition of Static Stripe and Superconducting Phases in La1.48Nd0.4Sr0.12CuO4 Controlled by Pressure
S. Arumugam, N. Môri, N. Takeshita, H. Takashima, T. Noda, H. Eisaki, S. Uchida
DOI 10.1103/PhysRevLett.88.247001 · Physical Review Letters
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Abstract
We have investigated the pressure effect on Tc and the Hall coefficient in the static stripe-ordered phase of La1.48Nd0.4Sr0.12CuO4 crystal under hydrostatic pressure. We found a dramatic change of the Hall coefficient and an abrupt increase of Tc at low pressure of about 0.1 GPa. The results are indicative of a transition from one- to two-dimensional charge transport, associated with the suppression of low-temperature-tetragonal (LTT) phase. From the uniaxial pressure measurements it turns out that the observed critical change is induced primarily due to the in-plane compression of the CuO2 planes which would make the pinning potential of the LTT lattice distortions weaker.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.48Nd0.4Sr0.12CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure unresolved | onset |
| La1.48Nd0.4Sr0.12CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | 0.13 GPa | onset |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 27 | Pressure unresolved | unknown |
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