Hysteretic behavior of Fe(phen)2(NCS)2 spin-transition microparticles vs. the environment: A huge reversible component resolved by first order reversal curves

被引：28

作者：

Tanasa, Radu ^{[1
]}

Laisney, Jerome ^{[2
]}

Stancu, Alexandru ^{[1
]}

Boillot, Marie-Laure ^{[2
]}

Enachescu, Cristian ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania

[2] Univ Paris 11, UMR CNRS 8182, ECI, ICMMO, F-91405 Orsay, France

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 03期

关键词：

THERMAL HYSTERESIS; FORC METHOD; CROSSOVER; NANOPARTICLES; PRESSURE; COOPERATIVITY; PHASES;

D O I：

10.1063/1.4862748

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We discuss the influence of the embedding matrix on the thermal hysteretic behavior of spin transition microparticles of Fe(phen)(2)(NCS)(2) by using a series of experimental first order reversal curves (FORCs). The shape of FORCs supports the hypothesis considering additional interactions between the spin-transition microparticles and the embedding matrix, which compares to a negative pressure on the particles. A mean-field approach based on negative variable external pressures, together with a cut off/switch on of particles-matrix interactions accounts for the experimental features. (C) 2014 AIP Publishing LLC.

引用

页数：5

共 10 条

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JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2023, 573

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