Spontaneous spin polarisation in one dimension under finite DC-bias

T. M. Chen; A. C. Graham; M. Pepper; I. Farrer; D. A. Ritchie

doi:10.1016/j.physe.2007.08.146

Spontaneous spin polarisation in one dimension under finite DC-bias

T. M. Chen
, A. C. Graham
, M. Pepper
, I. Farrer
, D. A. Ritchie

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We use the DC conductance of quantum wires to directly measure the energies of 1D states after they have populated; our results indicate that the 0.7 structure relates to the pinning in energy of the spin-up (higher energy) state. We also find evidence that the 0.85 (2 e² / h) feature is partially spin-polarised even in zero magnetic field, and its differential conductance value is enhanced from 0.75 (2 e² / h) by a subband dropping in energy with increasing V_sd.

Original language	English
Pages (from-to)	1295-1297
Number of pages	3
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	40
Issue number	5
DOIs	https://doi.org/10.1016/j.physe.2007.08.146
Publication status	Published - 2008 Mar

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/j.physe.2007.08.146

Cite this

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title = "Spontaneous spin polarisation in one dimension under finite DC-bias",

abstract = "We use the DC conductance of quantum wires to directly measure the energies of 1D states after they have populated; our results indicate that the 0.7 structure relates to the pinning in energy of the spin-up (higher energy) state. We also find evidence that the 0.85 (2 e2 / h) feature is partially spin-polarised even in zero magnetic field, and its differential conductance value is enhanced from 0.75 (2 e2 / h) by a subband dropping in energy with increasing Vsd.",

author = "Chen, \{T. M.\} and Graham, \{A. C.\} and M. Pepper and I. Farrer and Ritchie, \{D. A.\}",

note = "Funding Information: We acknowledge useful discussions with K. Kishen, F. Sfigakis, J.P. Griffiths, F. Hohls, K.J. Thomas, A. Lassl, K.-F. Berggren, and R. J. Needs. This work was supported by EPSRC, UK. TMC acknowledges support from ORS and COT. ACG acknowledges support from Emmanuel College, Cambridge.",

year = "2008",

month = mar,

doi = "10.1016/j.physe.2007.08.146",

language = "English",

volume = "40",

pages = "1295--1297",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier BV",

number = "5",

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TY - JOUR

T1 - Spontaneous spin polarisation in one dimension under finite DC-bias

AU - Chen, T. M.

AU - Graham, A. C.

AU - Pepper, M.

AU - Farrer, I.

AU - Ritchie, D. A.

N1 - Funding Information: We acknowledge useful discussions with K. Kishen, F. Sfigakis, J.P. Griffiths, F. Hohls, K.J. Thomas, A. Lassl, K.-F. Berggren, and R. J. Needs. This work was supported by EPSRC, UK. TMC acknowledges support from ORS and COT. ACG acknowledges support from Emmanuel College, Cambridge.

PY - 2008/3

Y1 - 2008/3

N2 - We use the DC conductance of quantum wires to directly measure the energies of 1D states after they have populated; our results indicate that the 0.7 structure relates to the pinning in energy of the spin-up (higher energy) state. We also find evidence that the 0.85 (2 e2 / h) feature is partially spin-polarised even in zero magnetic field, and its differential conductance value is enhanced from 0.75 (2 e2 / h) by a subband dropping in energy with increasing Vsd.

AB - We use the DC conductance of quantum wires to directly measure the energies of 1D states after they have populated; our results indicate that the 0.7 structure relates to the pinning in energy of the spin-up (higher energy) state. We also find evidence that the 0.85 (2 e2 / h) feature is partially spin-polarised even in zero magnetic field, and its differential conductance value is enhanced from 0.75 (2 e2 / h) by a subband dropping in energy with increasing Vsd.

UR - https://www.scopus.com/pages/publications/39649086898

UR - https://www.scopus.com/pages/publications/39649086898#tab=citedBy

U2 - 10.1016/j.physe.2007.08.146

DO - 10.1016/j.physe.2007.08.146

M3 - Article

AN - SCOPUS:39649086898

SN - 1386-9477

VL - 40

SP - 1295

EP - 1297

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 5

ER -

Spontaneous spin polarisation in one dimension under finite DC-bias

Abstract

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