Scaling of the magnetic entropy and magnetization in YbRh2(Si0.95Ge0.05)2

Gegenwart, P.; Tokiwa, Y.; Neumaier, K.; Geibel, C.; Steglich, F.

doi:10.1016/j.physb.2004.12.044

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Scaling of the magnetic entropy and magnetization in YbRh₂(Si_0.95Ge_0.05)₂

Gegenwart, P., Tokiwa, Y., Neumaier, K., Geibel, C., & Steglich, F. (2005). Scaling of the magnetic entropy and magnetization in YbRh₂(Si_0.95Ge_0.05)₂. Physica B-Condensed Matter, 359-361, 23-25. doi:10.1016/j.physb.2004.12.044.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0015-2CF5-9 Version Permalink: https://hdl.handle.net/21.11116/0000-0000-2CCC-A

Genre: Journal Article

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Creators:
Gegenwart, P.¹, Author
Tokiwa, Y.², Author
Neumaier, K., Author
Geibel, C.³, Author
Steglich, F.⁴, Author

Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404
3Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465
4Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863467

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Abstract: The magnetic entropy of YbRh2(Si0.95Ge0.05)2YbRh2(Si0.95Ge0.05)2 is derived from low-temperature View the MathML source(T⩾18mK) specific heat measurements. Upon field tuning the system to its antiferromagnetic quantum critical point unique temperature over magnetic field scaling is observed indicating the disintegration of heavy quasiparticles. The field dependence of the entropy equals the temperature dependence of the DC-magnetization as expected from the Maxwell relation. This proves that the quantum-critical fluctuations affect the thermal and magnetic properties in a consistent way.

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Language(s): eng - English

Dates: Date issued: 2005-04-30

Publication Status: Issued

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Identifiers: eDoc: 242011
DOI: 10.1016/j.physb.2004.12.044

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Title: Physica B-Condensed Matter

Other : Physica B

Source Genre: Journal

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Publ. Info: Amsterdam : North-Holland

Pages: - Volume / Issue: 359-361 Sequence Number: - Start / End Page: 23 - 25 Identifier: ISSN: 0921-4526
CoNE: https://pure.mpg.de/cone/journals/resource/954928575733