Phase transitions of magnetic nanoclusters in metals and semiconductors

T. C. Lee; T. T.M. Vo; B. Payandeh; M. Robert

doi:10.1016/S0378-4371(03)00568-5

Phase transitions of magnetic nanoclusters in metals and semiconductors

T. C. Lee
, T. T.M. Vo
, B. Payandeh
, M. Robert

Department of Chemical and Materials Engineering

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

1 Scopus citations

Abstract

The interactions and phase transitions of magnetic nanoclusters embedded in nonmagnetic metals and semiconductors are investigated theoretically. As a consequence of the temperature dependence of the indirect interactions, it is shown that for semiconductors several ferromagnetic phase transitions are possible depending on the size of the nanoclusters, whereas for metals a single ferromagnetic phase transition occurs independently of the size of the nanoclusters. The spontaneous magnetization is evaluated in all cases.

Original language	English
Pages (from-to)	401-410
Number of pages	10
Journal	Physica A: Statistical Mechanics and its Applications
Volume	329
Issue number	3-4
DOIs	https://doi.org/10.1016/S0378-4371(03)00568-5
State	Published - 15 Nov 2003

Keywords

Clusters
Magnetization
Phase transition

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10.1016/S0378-4371(03)00568-5

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title = "Phase transitions of magnetic nanoclusters in metals and semiconductors",

abstract = "The interactions and phase transitions of magnetic nanoclusters embedded in nonmagnetic metals and semiconductors are investigated theoretically. As a consequence of the temperature dependence of the indirect interactions, it is shown that for semiconductors several ferromagnetic phase transitions are possible depending on the size of the nanoclusters, whereas for metals a single ferromagnetic phase transition occurs independently of the size of the nanoclusters. The spontaneous magnetization is evaluated in all cases.",

keywords = "Clusters, Magnetization, Phase transition",

author = "Lee, \{T. C.\} and Vo, \{T. T.M.\} and B. Payandeh and M. Robert",

note = "Funding Information: One of us (M. R.) is most grateful to Profs. J. Fr{\"o}hlich, M. Landolt, and H.-C. Siegmann for making possible a sabbatical visit and for their warm hospitality at the Swiss Federal Institute of Technology in Zurich, where we learned of, and were stimulated by the experiments of Prof. Landolt's group. We thank Prof. P.G. de Gennes for a stimulating discussion and Profs. J.-Ph. Ansermet, J. Fr{\"o}hlich, M. Landolt, and H.-C. Siegmann for their interest and valuable comments. We also thank J. Greenwald, S. Light, and S. Seton-Rogers who, as undergraduate students at Rice University, took part in preliminary studies of this problem. The continuing financial support of the Welch Foundation (Houston, Texas) is gratefully acknowledged.",

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TY - JOUR

T1 - Phase transitions of magnetic nanoclusters in metals and semiconductors

AU - Lee, T. C.

AU - Vo, T. T.M.

AU - Payandeh, B.

AU - Robert, M.

N1 - Funding Information: One of us (M. R.) is most grateful to Profs. J. Fröhlich, M. Landolt, and H.-C. Siegmann for making possible a sabbatical visit and for their warm hospitality at the Swiss Federal Institute of Technology in Zurich, where we learned of, and were stimulated by the experiments of Prof. Landolt's group. We thank Prof. P.G. de Gennes for a stimulating discussion and Profs. J.-Ph. Ansermet, J. Fröhlich, M. Landolt, and H.-C. Siegmann for their interest and valuable comments. We also thank J. Greenwald, S. Light, and S. Seton-Rogers who, as undergraduate students at Rice University, took part in preliminary studies of this problem. The continuing financial support of the Welch Foundation (Houston, Texas) is gratefully acknowledged.

PY - 2003/11/15

Y1 - 2003/11/15

N2 - The interactions and phase transitions of magnetic nanoclusters embedded in nonmagnetic metals and semiconductors are investigated theoretically. As a consequence of the temperature dependence of the indirect interactions, it is shown that for semiconductors several ferromagnetic phase transitions are possible depending on the size of the nanoclusters, whereas for metals a single ferromagnetic phase transition occurs independently of the size of the nanoclusters. The spontaneous magnetization is evaluated in all cases.

AB - The interactions and phase transitions of magnetic nanoclusters embedded in nonmagnetic metals and semiconductors are investigated theoretically. As a consequence of the temperature dependence of the indirect interactions, it is shown that for semiconductors several ferromagnetic phase transitions are possible depending on the size of the nanoclusters, whereas for metals a single ferromagnetic phase transition occurs independently of the size of the nanoclusters. The spontaneous magnetization is evaluated in all cases.

KW - Clusters

KW - Magnetization

KW - Phase transition

UR - https://www.scopus.com/pages/publications/0142031154

U2 - 10.1016/S0378-4371(03)00568-5

DO - 10.1016/S0378-4371(03)00568-5

M3 - 期刊論文

AN - SCOPUS:0142031154

SN - 0378-4371

VL - 329

SP - 401

EP - 410

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 3-4

ER -

Phase transitions of magnetic nanoclusters in metals and semiconductors

Abstract

Keywords

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