NO PHASE-TRANSITION IN A MAGNETIC-FIELD IN THE ISING SPIN-GLASS FE0.5MN0.5TIO3

被引：132

作者：

MATTSSON, J

JONSSON, T

NORDBLAD, P

KATORI, HA

ITO, A

机构：

[1] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN

[2] OCHANOMIZU UNIV, FAC SCI, DEPT PHYS, BUNKYO KU, TOKYO 112, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.74.4305

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamic scaling behavior of the Ising spin glass Fe0.5Mn0.5TiO3 in superimposed dc magnetic fields has been studied. The dynamic freezing temperatures Tf,H were determined as a function of field 0H3.1 T and frequency 0.017/25100 Hz. The in-field scaling behavior is strikingly different from the zero-field behavior and is well described by activated dynamics and a correlation length that depends on field as H-H. The results are in agreement with the droplet model predictions and strongly suggest that there is no phase transition in a magnetic field in 3D Ising spin glasses. © 1995 The American Physical Society.

引用

页码：4305 / 4308

页数：4

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