Ultrasonic studies on UPt3 in high magnetic fields

S. W. Lin; I. Kouroudis; A. G.M. Jansen; P. Wyder; B. Lüthi; D. G. Hinks; J. B. Ketterson; M. Levy; Bimal K. Sarma

doi:10.1016/0921-4526(96)00072-5

Ultrasonic studies on UPt₃ in high magnetic fields

S. W. Lin, I. Kouroudis, A. G.M. Jansen, P. Wyder, B. Lüthi, D. G. Hinks, J. B. Ketterson, M. Levy, Bimal K. Sarma^*

^*Corresponding author for this work

MRC - Materials Research Center

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

9 Scopus citations

Abstract

The longitudinal ultrasonic attenuation and velocity on UPt₃ have been measured in high magnetic fields up to 23 T and temperatures down to 2 K to study the heavy-fermion state. Earlier measurements had reported an attenuation peak at 12 K in temperature sweeps that was interpreted as a resonance with a narrow density of states at the Fermi surface, and a large dip in the velocity around 20 T (a softening due to a metamagnetic transition). The field dependence of the attenuation peak, its shift to lower temperatures and eventual merging with the peak in attenuation at the metamagnetic transition are discussed. The velocity was also measured and complementary features observed.

Original language	English (US)
Pages (from-to)	185-188
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	223-224
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(96)00072-5
State	Published - Jun 2 1996

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0921-4526(96)00072-5

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@article{a40bab44fb2e40bf9c5cf73ea9d197e5,

title = "Ultrasonic studies on UPt3 in high magnetic fields",

abstract = "The longitudinal ultrasonic attenuation and velocity on UPt3 have been measured in high magnetic fields up to 23 T and temperatures down to 2 K to study the heavy-fermion state. Earlier measurements had reported an attenuation peak at 12 K in temperature sweeps that was interpreted as a resonance with a narrow density of states at the Fermi surface, and a large dip in the velocity around 20 T (a softening due to a metamagnetic transition). The field dependence of the attenuation peak, its shift to lower temperatures and eventual merging with the peak in attenuation at the metamagnetic transition are discussed. The velocity was also measured and complementary features observed.",

author = "Lin, {S. W.} and I. Kouroudis and Jansen, {A. G.M.} and P. Wyder and B. L{\"u}thi and Hinks, {D. G.} and Ketterson, {J. B.} and M. Levy and Sarma, {Bimal K.}",

note = "Funding Information: We thank Dr. M.J. McKenna for the help with the electronics and Hong Zhang for the help in preparing the manuscript. Technical help from M. Mitchell and Peter van der Linden is greatly appreciated. The work at UWM was supported by the Office of Naval Research, and at Northwestern by the National Science Foundation (# DMR-89-07396). SWL and BKS thank the financial support from the Max-Planck Institute, Stuttgart.",

year = "1996",

month = jun,

day = "2",

doi = "10.1016/0921-4526(96)00072-5",

language = "English (US)",

volume = "223-224",

pages = "185--188",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - Ultrasonic studies on UPt3 in high magnetic fields

AU - Lin, S. W.

AU - Kouroudis, I.

AU - Jansen, A. G.M.

AU - Wyder, P.

AU - Lüthi, B.

AU - Hinks, D. G.

AU - Ketterson, J. B.

AU - Levy, M.

AU - Sarma, Bimal K.

N1 - Funding Information: We thank Dr. M.J. McKenna for the help with the electronics and Hong Zhang for the help in preparing the manuscript. Technical help from M. Mitchell and Peter van der Linden is greatly appreciated. The work at UWM was supported by the Office of Naval Research, and at Northwestern by the National Science Foundation (# DMR-89-07396). SWL and BKS thank the financial support from the Max-Planck Institute, Stuttgart.

PY - 1996/6/2

Y1 - 1996/6/2

N2 - The longitudinal ultrasonic attenuation and velocity on UPt3 have been measured in high magnetic fields up to 23 T and temperatures down to 2 K to study the heavy-fermion state. Earlier measurements had reported an attenuation peak at 12 K in temperature sweeps that was interpreted as a resonance with a narrow density of states at the Fermi surface, and a large dip in the velocity around 20 T (a softening due to a metamagnetic transition). The field dependence of the attenuation peak, its shift to lower temperatures and eventual merging with the peak in attenuation at the metamagnetic transition are discussed. The velocity was also measured and complementary features observed.

AB - The longitudinal ultrasonic attenuation and velocity on UPt3 have been measured in high magnetic fields up to 23 T and temperatures down to 2 K to study the heavy-fermion state. Earlier measurements had reported an attenuation peak at 12 K in temperature sweeps that was interpreted as a resonance with a narrow density of states at the Fermi surface, and a large dip in the velocity around 20 T (a softening due to a metamagnetic transition). The field dependence of the attenuation peak, its shift to lower temperatures and eventual merging with the peak in attenuation at the metamagnetic transition are discussed. The velocity was also measured and complementary features observed.

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U2 - 10.1016/0921-4526(96)00072-5

DO - 10.1016/0921-4526(96)00072-5

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SN - 0921-4526

VL - 223-224

SP - 185

EP - 188

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-4

ER -

Ultrasonic studies on UPt₃ in high magnetic fields

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