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Title: Fermi Surface of Superconducting LaFePO Determined by Quantum Oscillations

Abstract

We report extensive measurements of quantum oscillations in the normal state of the Fe-based superconductor LaFePO, (T{sub c} {approx} 6 K) using low temperature torque magnetometry and transport in high static magnetic fields (45 T). We find that the Fermi surface is in broad agreement with the band-structure calculations with the quasiparticle mass enhanced by a factor {approx}2. The quasi-two dimensional Fermi surface consist of nearly-nested electron and hole pockets, suggesting proximity to a spin/charge density wave instability.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
970451
Report Number(s):
SLAC-PUB-13890
TRN: US201002%%1152
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Submitted to Physical Review Letters
Additional Journal Information:
Journal Name: Submitted to Physical Review Letters
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRONS; FERMI LEVEL; INSTABILITY; MAGNETIC FIELDS; OSCILLATIONS; SUPERCONDUCTORS; TORQUE; TRANSPORT; Other,MATSCI

Citation Formats

Coldea, A I, Fletcher, J D, Carrington, A, /Bristol U., Analytis, J G, /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept., Bangura, A F, /Bristol U., Chu, J -H, Erickson, A S, Fisher, I R, /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept., Hussey, N E, /Bristol U., McDonald, R D, and /Los Alamos. Fermi Surface of Superconducting LaFePO Determined by Quantum Oscillations. United States: N. p., 2010. Web.
Coldea, A I, Fletcher, J D, Carrington, A, /Bristol U., Analytis, J G, /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept., Bangura, A F, /Bristol U., Chu, J -H, Erickson, A S, Fisher, I R, /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept., Hussey, N E, /Bristol U., McDonald, R D, & /Los Alamos. Fermi Surface of Superconducting LaFePO Determined by Quantum Oscillations. United States.
Coldea, A I, Fletcher, J D, Carrington, A, /Bristol U., Analytis, J G, /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept., Bangura, A F, /Bristol U., Chu, J -H, Erickson, A S, Fisher, I R, /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept., Hussey, N E, /Bristol U., McDonald, R D, and /Los Alamos. 2010. "Fermi Surface of Superconducting LaFePO Determined by Quantum Oscillations". United States. https://www.osti.gov/servlets/purl/970451.
@article{osti_970451,
title = {Fermi Surface of Superconducting LaFePO Determined by Quantum Oscillations},
author = {Coldea, A I and Fletcher, J D and Carrington, A and /Bristol U. and Analytis, J G and /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept. and Bangura, A F and /Bristol U. and Chu, J -H and Erickson, A S and Fisher, I R and /Stanford U., Geballe Lab. /Stanford U., Appl. Phys. Dept. and Hussey, N E and /Bristol U. and McDonald, R D and /Los Alamos},
abstractNote = {We report extensive measurements of quantum oscillations in the normal state of the Fe-based superconductor LaFePO, (T{sub c} {approx} 6 K) using low temperature torque magnetometry and transport in high static magnetic fields (45 T). We find that the Fermi surface is in broad agreement with the band-structure calculations with the quasiparticle mass enhanced by a factor {approx}2. The quasi-two dimensional Fermi surface consist of nearly-nested electron and hole pockets, suggesting proximity to a spin/charge density wave instability.},
doi = {},
url = {https://www.osti.gov/biblio/970451}, journal = {Submitted to Physical Review Letters},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 11 00:00:00 EST 2010},
month = {Mon Jan 11 00:00:00 EST 2010}
}