ITINERANT ANTIFERROMAGNETIC AND FERROMAGNETIC INSTABILITY IN RE-DOPED URU2SI2 - OPTICAL AND POINT-CONTACT SPECTROSCOPY RESULTS

被引：18

作者：

THIEME, S ^{[1
]}

STEINER, P ^{[1
]}

DEGIORGI, L ^{[1
]}

WACHTER, P ^{[1
]}

DALICHAOUCH, Y ^{[1
]}

MAPLE, MB ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,DEPT PHYS,SAN DIEGO,CA 92093

来源：

EUROPHYSICS LETTERS | 1995年 / 32卷 / 04期

关键词：

D O I：

10.1209/0295-5075/32/4/014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have conducted optical and point-contact spectroscopy (PCS) investigations on the URu2-xRexSi2(0 < x < 0.8) system, in order to determine the absorption spectrum and to obtain a fingerprint of the density of states with respect to the magnetic ground state as x is : varied. In the antiferromagnetic phase (a < 0.1), we clearly have evidence for a gap-like feature in both the absorption and PCS spectra. On the other hand, these features disappear for the ferromagnetic ground state (x > 0.4). We discuss our experimental findings in relation to the itinerant nature of the magnetic phase transitions.

引用

页码：367 / 372

页数：6

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