Thermal Quenches in Spin Ice

被引：70

作者：

Castelnovo, C. ^{[1
,2
]}

Moessner, R. ^{[3
]}

Sondhi, S. L. ^{[4
]}

机构：

[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

[2] Univ Oxford, Worcester Coll, Oxford OX1 3NP, England

[3] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[4] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

MAGNETIC MONOPOLES; ANNIHILATION;

D O I：

10.1103/PhysRevLett.104.107201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the diffusion-annihilation process which occurs when spin ice is quenched from a high temperature paramagnetic phase deep into the spin-ice regime, where the excitations-magnetic monopoles-are sparse. We find that due to the Coulomb interaction between the monopoles, a dynamical arrest occurs, in which nonuniversal lattice-scale constraints impede the complete decay of charge fluctuations. This phenomenon is outside the reach of conventional mean-field theory for a two-component Coulomb liquid. We identify the relevant time scales for the dynamical arrest and propose an experiment for detecting monopoles and their dynamics in spin ice based on this nonequilibrium phenomenon.

引用

页数：4

共 17 条

[1] Measurement of the charge and current of magnetic monopoles in spin ice [J].

Bramwell, S. T. ;

Giblin, S. R. ;

Calder, S. ;

Aldus, R. ;

Prabhakaran, D. ;

Fennell, T. .

NATURE, 2009, 461 (7266) :956-U211

[2] Magnetic monopoles in spin ice [J].

Castelnovo, C. ;

Moessner, R. ;

Sondhi, S. L. .

NATURE, 2008, 451 (7174) :42-45

[3]

CASTELNOVO C, IN PRESS

[4] Faster Monte Carlo simulations at low temperatures. The waiting time method [J].

Dall, J ;

Sibani, P .

COMPUTER PHYSICS COMMUNICATIONS, 2001, 141 (02) :260-267

[5] SIMULATION OF ELECTROSTATIC SYSTEMS IN PERIODIC BOUNDARY-CONDITIONS .1. LATTICE SUMS AND DIELECTRIC-CONSTANTS [J].

DELEEUW, SW ;

PERRAM, JW ;

SMITH, ER .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1980, 373 (1752) :27-56

[6] Dipolar interactions and origin of spin ice in Ising pyrochlore magnets [J].

den Hertog, BC ;

Gingras, MJP .

PHYSICAL REVIEW LETTERS, 2000, 84 (15) :3430-3433

[7] Magnetic Coulomb Phase in the Spin Ice Ho2Ti2O7 [J].

Fennell, T. ;

Deen, P. P. ;

Wildes, A. R. ;

Schmalzl, K. ;

Prabhakaran, D. ;

Boothroyd, A. T. ;

Aldus, R. J. ;

McMorrow, D. F. ;

Bramwell, S. T. .

SCIENCE, 2009, 326 (5951) :415-417

[8] Self-consistent model of an annihilation-diffusion reaction with long-range interactions [J].

Ginzburg, VV ;

Radzihovsky, L ;

Clark, NA .

PHYSICAL REVIEW E, 1997, 55 (01) :395-402

[9] Signature of magnetic monopole and Dirac string dynamics in spin ice [J].

Jaubert, L. D. C. ;

Holdsworth, P. C. W. .

NATURE PHYSICS, 2009, 5 (04) :258-261

[10] Observation of Magnetic Monopoles in Spin Ice [J].

Kadowaki, Hiroaki ;

Doi, Naohiro ;

Aoki, Yuji ;

Tabata, Yoshikazu ;

Sato, Taku J. ;

Lynn, Jeffrey W. ;

Matsuhira, Kazuyuki ;

Hiroi, Zenji .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 (10)

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