Acoustic properties of dilute PdFe and PtFe spin glasses

P. Esquinazi; R. König; B. Neppert; F. Pobell

doi:10.1016/0921-4526(95)00721-0

Acoustic properties of dilute PdFe and PtFe spin glasses

P. Esquinazi^*, R. König, B. Neppert, F. Pobell

^*Corresponding author for this work

Clinic of Ophtalmology

Abstract

We have measured the sound velocity and sound attenuation of the dilute spin glasses Pd + 15 ppm Fe, Pd + 150 ppm Fe, and Pt + 55 ppm Fe at ̃ 1 kHz and temperatures from 0.2 mK to 200 mK, 6 mK to 100 mK, and 50 mK to 200 mK, respectively. Both acoustic properties show anomalies near their spin glass freezing temperatures. For the most dilute sample Pd + 15 ppm Fe, we measured an attenuation peak at 1 mK accompanied by a maximum in the sound velocity. Both anomalies are suppressed by a magnetic field of only 0.1 mT.

Original language	English
Journal	Physica B: Condensed Matter
Volume	219-220
Issue number	1-4
Pages (from-to)	284-286
Number of pages	3
ISSN	0921-4526
DOIs	https://doi.org/10.1016/0921-4526(95)00721-0
Publication status	Published - 01.04.1996

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10.1016/0921-4526(95)00721-0

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title = "Acoustic properties of dilute PdFe and PtFe spin glasses",

abstract = "We have measured the sound velocity and sound attenuation of the dilute spin glasses Pd + 15 ppm Fe, Pd + 150 ppm Fe, and Pt + 55 ppm Fe at{\~ } 1 kHz and temperatures from 0.2 mK to 200 mK, 6 mK to 100 mK, and 50 mK to 200 mK, respectively. Both acoustic properties show anomalies near their spin glass freezing temperatures. For the most dilute sample Pd + 15 ppm Fe, we measured an attenuation peak at 1 mK accompanied by a maximum in the sound velocity. Both anomalies are suppressed by a magnetic field of only 0.1 mT.",

author = "P. Esquinazi and R. K{\"o}nig and B. Neppert and F. Pobell",

year = "1996",

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doi = "10.1016/0921-4526(95)00721-0",

language = "English",

volume = "219-220",

pages = "284--286",

journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Acoustic properties of dilute PdFe and PtFe spin glasses

AU - Esquinazi, P.

AU - König, R.

AU - Neppert, B.

AU - Pobell, F.

PY - 1996/4/1

Y1 - 1996/4/1

N2 - We have measured the sound velocity and sound attenuation of the dilute spin glasses Pd + 15 ppm Fe, Pd + 150 ppm Fe, and Pt + 55 ppm Fe at ̃ 1 kHz and temperatures from 0.2 mK to 200 mK, 6 mK to 100 mK, and 50 mK to 200 mK, respectively. Both acoustic properties show anomalies near their spin glass freezing temperatures. For the most dilute sample Pd + 15 ppm Fe, we measured an attenuation peak at 1 mK accompanied by a maximum in the sound velocity. Both anomalies are suppressed by a magnetic field of only 0.1 mT.

AB - We have measured the sound velocity and sound attenuation of the dilute spin glasses Pd + 15 ppm Fe, Pd + 150 ppm Fe, and Pt + 55 ppm Fe at ̃ 1 kHz and temperatures from 0.2 mK to 200 mK, 6 mK to 100 mK, and 50 mK to 200 mK, respectively. Both acoustic properties show anomalies near their spin glass freezing temperatures. For the most dilute sample Pd + 15 ppm Fe, we measured an attenuation peak at 1 mK accompanied by a maximum in the sound velocity. Both anomalies are suppressed by a magnetic field of only 0.1 mT.

UR - https://www.scopus.com/pages/publications/0030123105

U2 - 10.1016/0921-4526(95)00721-0

DO - 10.1016/0921-4526(95)00721-0

M3 - Journal articles

AN - SCOPUS:0030123105

SN - 0921-4526

VL - 219-220

SP - 284

EP - 286

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-4

ER -

Acoustic properties of dilute PdFe and PtFe spin glasses

Abstract

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