Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors

R. B. Laughlin; C. B. Hanna

doi:10.1007/978-1-4613-1937-5_65

Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this paper we point out that a large body of data on the newly discovered copper oxide superconductors points to the existence in these materials of a new type of dilute fermi liquid composed of heavy polarons, which we believe acquire their mass magnetically. Each polaron is a hole doped into the host material, a Mott insulator, self-trapped in a well, much the way a hole added to an alkali halide is trapped. The polaron is mobile, has a mass m* of approximately 6 electron masses, and has ail ionization energy, an upper limit on its binding energy, of approximately 0.15 eV. The fermi energy of the polaron liquid in La2-xSrxCuO4 with x = 0.15 is roughly 80 meV. The smallness of this energy is unprecedented in the phenomenology of superconductivity and is probably the key to understanding these materials.

Original language	American English
Title of host publication	Novel Superconductivity
Subtitle of host publication	Proceedings of the International Workshop on Novel Mechanisms of Superconductivity
Editors	Stuart A. Wolf, Vladimir Z. Kresin
Place of Publication	Boston, MA
Pages	553-562
Number of pages	10
Edition	1st
ISBN (Electronic)	9781461319375
DOIs	https://doi.org/10.1007/978-1-4613-1937-5_65
State	Published - 1987
Externally published	Yes
Event	International Workshop on Novel Mechanisms of Superconductivity - Berkeley, United States Duration: 22 Jun 1987 → 26 Jun 1987

Conference

Conference	International Workshop on Novel Mechanisms of Superconductivity
Country/Territory	United States
City	Berkeley
Period	22/06/87 → 26/06/87

EGS Disciplines

Physics

Access to Document

10.1007/978-1-4613-1937-5_65

Cite this

@inproceedings{25386bd52ead4637b485dd81aa987c8e,

title = "Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors",

abstract = "In this paper we point out that a large body of data on the newly discovered copper oxide superconductors points to the existence in these materials of a new type of dilute fermi liquid composed of heavy polarons, which we believe acquire their mass magnetically. Each polaron is a hole doped into the host material, a Mott insulator, self-trapped in a well, much the way a hole added to an alkali halide is trapped. The polaron is mobile, has a mass m* of approximately 6 electron masses, and has ail ionization energy, an upper limit on its binding energy, of approximately 0.15 eV. The fermi energy of the polaron liquid in La2-xSrxCuO4 with x = 0.15 is roughly 80 meV. The smallness of this energy is unprecedented in the phenomenology of superconductivity and is probably the key to understanding these materials.",

author = "Laughlin, \{R. B.\} and Hanna, \{C. B.\}",

note = "{\textcopyright} 1987 Plenum Press, New York; International Workshop on Novel Mechanisms of Superconductivity ; Conference date: 22-06-1987 Through 26-06-1987",

year = "1987",

doi = "10.1007/978-1-4613-1937-5\_65",

language = "American English",

isbn = "9781461290766",

pages = "553--562",

editor = "Wolf, \{Stuart A.\} and Kresin, \{Vladimir Z.\}",

booktitle = "Novel Superconductivity",

edition = "1st",

}

Laughlin, RB & Hanna, CB 1987, Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors. in SA Wolf & VZ Kresin (eds), Novel Superconductivity: Proceedings of the International Workshop on Novel Mechanisms of Superconductivity. 1st edn, Boston, MA, pp. 553-562, International Workshop on Novel Mechanisms of Superconductivity, Berkeley, California, United States, 22/06/87. https://doi.org/10.1007/978-1-4613-1937-5_65

Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors. / Laughlin, R. B.; Hanna, C. B.
Novel Superconductivity: Proceedings of the International Workshop on Novel Mechanisms of Superconductivity. ed. / Stuart A. Wolf; Vladimir Z. Kresin. 1st. ed. Boston, MA, 1987. p. 553-562.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors

AU - Laughlin, R. B.

AU - Hanna, C. B.

PY - 1987

Y1 - 1987

N2 - In this paper we point out that a large body of data on the newly discovered copper oxide superconductors points to the existence in these materials of a new type of dilute fermi liquid composed of heavy polarons, which we believe acquire their mass magnetically. Each polaron is a hole doped into the host material, a Mott insulator, self-trapped in a well, much the way a hole added to an alkali halide is trapped. The polaron is mobile, has a mass m* of approximately 6 electron masses, and has ail ionization energy, an upper limit on its binding energy, of approximately 0.15 eV. The fermi energy of the polaron liquid in La2-xSrxCuO4 with x = 0.15 is roughly 80 meV. The smallness of this energy is unprecedented in the phenomenology of superconductivity and is probably the key to understanding these materials.

AB - In this paper we point out that a large body of data on the newly discovered copper oxide superconductors points to the existence in these materials of a new type of dilute fermi liquid composed of heavy polarons, which we believe acquire their mass magnetically. Each polaron is a hole doped into the host material, a Mott insulator, self-trapped in a well, much the way a hole added to an alkali halide is trapped. The polaron is mobile, has a mass m* of approximately 6 electron masses, and has ail ionization energy, an upper limit on its binding energy, of approximately 0.15 eV. The fermi energy of the polaron liquid in La2-xSrxCuO4 with x = 0.15 is roughly 80 meV. The smallness of this energy is unprecedented in the phenomenology of superconductivity and is probably the key to understanding these materials.

U2 - 10.1007/978-1-4613-1937-5_65

DO - 10.1007/978-1-4613-1937-5_65

M3 - Conference contribution

SN - 9781461290766

SP - 553

EP - 562

BT - Novel Superconductivity

A2 - Wolf, Stuart A.

A2 - Kresin, Vladimir Z.

CY - Boston, MA

T2 - International Workshop on Novel Mechanisms of Superconductivity

Y2 - 22 June 1987 through 26 June 1987

ER -

Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors

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