Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy

T. Sato, Y. Naitoh, T. Kamiyama, T. Takahashi, Takayoshi Yokoya, K. Yamada, Y. Endoh, K. Kadowaki

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Two different (small and large) pseudogaps have been observed by ultrahigh-resolution photoeraission spectroscopy in optimally doped Bi2Sr2CaCu2O8 and La1.85Sr0.15GuO4. The small pseudogap is smoothly connected from the superconducting gap and closes slightly above Tc, while the large one appears as a remarkable depletion of the density of states in a wider energy range near EF and persists far above Tc. The small pseudogap is likely associated with pairing and the large one is ascribed to the development of antiferromagnetic correlation.

Original languageEnglish
Pages (from-to)815-818
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume341-348
Issue numberPART 3
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

Photoelectron spectroscopy
Superconducting materials
depletion
photoelectric emission
Spectroscopy
spectroscopy
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Sato, T., Naitoh, Y., Kamiyama, T., Takahashi, T., Yokoya, T., Yamada, K., ... Kadowaki, K. (2000). Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy. Physica C: Superconductivity and its Applications, 341-348(PART 3), 815-818.

Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy. / Sato, T.; Naitoh, Y.; Kamiyama, T.; Takahashi, T.; Yokoya, Takayoshi; Yamada, K.; Endoh, Y.; Kadowaki, K.

In: Physica C: Superconductivity and its Applications, Vol. 341-348, No. PART 3, 2000, p. 815-818.

Research output: Contribution to journalArticle

Sato, T, Naitoh, Y, Kamiyama, T, Takahashi, T, Yokoya, T, Yamada, K, Endoh, Y & Kadowaki, K 2000, 'Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy', Physica C: Superconductivity and its Applications, vol. 341-348, no. PART 3, pp. 815-818.
Sato, T. ; Naitoh, Y. ; Kamiyama, T. ; Takahashi, T. ; Yokoya, Takayoshi ; Yamada, K. ; Endoh, Y. ; Kadowaki, K. / Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy. In: Physica C: Superconductivity and its Applications. 2000 ; Vol. 341-348, No. PART 3. pp. 815-818.
@article{54c7cf0bb95648249bf93b061a4170ec,
title = "Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy",
abstract = "Two different (small and large) pseudogaps have been observed by ultrahigh-resolution photoeraission spectroscopy in optimally doped Bi2Sr2CaCu2O8 and La1.85Sr0.15GuO4. The small pseudogap is smoothly connected from the superconducting gap and closes slightly above Tc, while the large one appears as a remarkable depletion of the density of states in a wider energy range near EF and persists far above Tc. The small pseudogap is likely associated with pairing and the large one is ascribed to the development of antiferromagnetic correlation.",
author = "T. Sato and Y. Naitoh and T. Kamiyama and T. Takahashi and Takayoshi Yokoya and K. Yamada and Y. Endoh and K. Kadowaki",
year = "2000",
language = "English",
volume = "341-348",
pages = "815--818",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 3",

}

TY - JOUR

T1 - Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy

AU - Sato, T.

AU - Naitoh, Y.

AU - Kamiyama, T.

AU - Takahashi, T.

AU - Yokoya, Takayoshi

AU - Yamada, K.

AU - Endoh, Y.

AU - Kadowaki, K.

PY - 2000

Y1 - 2000

N2 - Two different (small and large) pseudogaps have been observed by ultrahigh-resolution photoeraission spectroscopy in optimally doped Bi2Sr2CaCu2O8 and La1.85Sr0.15GuO4. The small pseudogap is smoothly connected from the superconducting gap and closes slightly above Tc, while the large one appears as a remarkable depletion of the density of states in a wider energy range near EF and persists far above Tc. The small pseudogap is likely associated with pairing and the large one is ascribed to the development of antiferromagnetic correlation.

AB - Two different (small and large) pseudogaps have been observed by ultrahigh-resolution photoeraission spectroscopy in optimally doped Bi2Sr2CaCu2O8 and La1.85Sr0.15GuO4. The small pseudogap is smoothly connected from the superconducting gap and closes slightly above Tc, while the large one appears as a remarkable depletion of the density of states in a wider energy range near EF and persists far above Tc. The small pseudogap is likely associated with pairing and the large one is ascribed to the development of antiferromagnetic correlation.

UR - http://www.scopus.com/inward/record.url?scp=0343832822&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0343832822&partnerID=8YFLogxK

M3 - Article

VL - 341-348

SP - 815

EP - 818

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 3

ER -