Epitaxial YBa2Cu3O7−δ—Ag thin films (Jc = 6 × 106 A/cm2) on epitaxial films of Ba2LaNbO6, a new perovskite substrate, by pulsed laser ablation

Pai, S. P.; Jasudasan, J.; Apte, P. R.; Pinto, R.; Kurian, J.; Sajith, P. K.; James, J.; Koshy, J.

doi:10.1016/s0921-4534(97)01601-8

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…The trilayer La 0.67 Sr 0.33 MnO 3 (LSMO)/Ba 2 LaNbO 6 (BLNO)/LSMO was deposited on single crystalline SrT iO 3 (100) substrate held at a temperature 800 0 C and the oxygen pressure was 400 mTorr. BLNO has a complex cubic perovskites structure and can be grown epitaxially on single crystal perovskite substrates [10,11]. The thickness of the bottom LSMO layer is 1000 Å and that of the top layer 500 Å while the estimated thickness of the insulating spacer from the deposition rate calibration of BLNO is 50 Å.…”

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confidence: 99%

Anomalous bias dependence of tunnel magnetoresistance in a magnetic tunnel junction

Mukhopadhyay

Das

Pai

et al. 2005

Applied Physics Letters

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We have fabricated a spin-polarized tunneling device based on half metallic manganites incorporating Ba 2 LaN bO 6 as insulating barrier. An anomalous bias dependence of tunnel magnetoresistance (TMR) has been observed, the first of its kind in a symmetric electrode tunnel junction with single insulating barrier. The bias dependence of TMR shows an extremely sharp zero bias anomaly, which can be considered as a demonstration of the drastic density of states variation around the Fermi level of the half metal. This serves as a strong evidence for the existence of minority spin tunneling states at the half-metal insulator interface.

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confidence: 99%

Anomalous bias dependence of tunnel magnetoresistance in a magnetic tunnel junction

Mukhopadhyay

Das

Pai

et al. 2005

Applied Physics Letters

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“…Due to the structural flexibility and proper dielectric properties, Ba 2 LaNbO 6 has also been found to be a chemically suitable substrate material for superconductor YBa 2 Cu 3 O 7‐δ. 22 Moreover, the experimental results reveal that Ba 2 LaNbO 6 when doped with Mn +4 and Yb +3 has the potential to be used for plant‐cultivation LEDs 20 . Howsoever, the cubic phase physical properties of double perovskite are still unfamiliar.…”

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confidence: 99%

Structural and mechanical stabilities, electronic, magnetic and thermophysical properties of double perovskite Ba ₂ LaNbO ₆ : Probed by DFT computation

Mir

Gupta

2021

Intl J of Energy Research

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The potential of a material to switch the squander heat into electricity depends on the magnitude of conductivities and the Seebeck coefficient. In this comprehensive report, we have made an effort to simulate the properties of Ba 2 LaNbO 6 within the instructions of density functional theory. The exchange-correlation potential is probed through local density approximation and generalized gradient approximation. The modified Becke-Johnson potential was also incorporated. The mechanical and structural stabilities are defined through the computation of elastic constants and optimization of total energy, respectively. The computed lattice parameters are consistent with the experimentally reported results. Band structure and energy state distribution plots portray the semiconducting behavior for Ba 2 LaNbO 6 . The thermoelectric effectiveness of Ba 2 LaNbO 6 is predicted by computing parameters like the Seebeck coefficient, the figure of merit. The Seebeck coefficient exhibits pronounced peaks on either side of the Fermi level while ZT peaks have a value close to unity.

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“…The critical current with spin-polarized current (I c(pol) ) was measured by injecting the current through 5 and 4 and measuring the voltage between 2 and 3. The insulating LBNO layer [10] ensured that the spin-polarized quasi-particles were injected into the superconductor in the vicinity of the micro-bridge.…”

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confidence: 99%

Critical current of a superconductor measured via injection of spin-polarized carriers

Raychaudhuri

Sarkar²,

Mal³

et al. 2000

J. Phys.: Condens. Matter

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In this paper we report a direct evidence of the suppression of critical current due to pair-breaking in a superconducting micro-bridge when the measurement is carried out by injecting spin polarised carriers instead of normal electrons. A thin layer of La 0.7 Ca 0.3 MnO 3 was used as the source of spin polarised carriers. The micro-bridge was formed on the DyBa 2 Cu 3 O 7-δ thin film by photo-lithographic techniques. The design of our spin-injection device allowed us to inject spin-polarised carriers from the La 0.7 Ca 0.3 MnO 3 layer directly to the DyBa 2 Cu 3 O 7-δ micro-bridge (without any insulating buffer layer) making it possible to measure the critical current when polarised electrons alone are injected into the superconductor. Our results confirm the role of polarised carriers in breaking the Cooper pairs in the superconductor.

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Epitaxial YBa2Cu3O7−δ—Ag thin films (Jc = 6 × 106 A/cm2) on epitaxial films of Ba2LaNbO6, a new perovskite substrate, by pulsed laser ablation

Cited by 7 publications

References 9 publications

Anomalous bias dependence of tunnel magnetoresistance in a magnetic tunnel junction

Anomalous bias dependence of tunnel magnetoresistance in a magnetic tunnel junction

Structural and mechanical stabilities, electronic, magnetic and thermophysical properties of double perovskite Ba ₂ LaNbO ₆ : Probed by DFT computation

Critical current of a superconductor measured via injection of spin-polarized carriers

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Epitaxial YBa2Cu3O7−δ—Ag thin films (Jc = 6 × 106 A/cm2) on epitaxial films of Ba2LaNbO6, a new perovskite substrate, by pulsed laser ablation

Cited by 7 publications

References 9 publications

Anomalous bias dependence of tunnel magnetoresistance in a magnetic tunnel junction

Anomalous bias dependence of tunnel magnetoresistance in a magnetic tunnel junction

Structural and mechanical stabilities, electronic, magnetic and thermophysical properties of double perovskite Ba 2 LaNbO 6 : Probed by DFT computation

Critical current of a superconductor measured via injection of spin-polarized carriers

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Product

Resources

About

Structural and mechanical stabilities, electronic, magnetic and thermophysical properties of double perovskite Ba ₂ LaNbO ₆ : Probed by DFT computation