Disturbing the spin liquid state in Tb2Ti2O 7: Heat capacity measurements on rare earth titanates

A. L. Cornelius; B. E. Light; Ravhi S. Kumar; M. Eichenfield; T. Dutton; R. Pepin; J. S. Gardner

doi:10.1016/j.physb.2005.01.372

Disturbing the spin liquid state in Tb₂Ti₂O ₇: Heat capacity measurements on rare earth titanates

A. L. Cornelius, B. E. Light, Ravhi S. Kumar, M. Eichenfield, T. Dutton, R. Pepin, J. S. Gardner

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

5 Scopus citations

Abstract

One of the best-known spin liquids is the geometrically frustrated pyrochlore Tb₂Ti₂O₇. In a spin liquid, there are short-range dynamic magnetic correlations and an absence of static long-range magnetic order down to 0 K. We have measured heat capacity at low temperatures in magnetic field to 80 kOe on Nd₂Ti₂O ₇, Tb₂Ti₂O₇, and Tb ₂TiO₅ to better understand the spin liquid state. Nd ₂Ti₂O₇ displays antiferromagnetic order at T=0.6K much lower than the paramagnetic Curie temperature. Application of magnetic field or distortion of the Tb sublattice destroys the spin liquid as evidenced by static spins.

Original language	English
Pages (from-to)	1243-1245
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.372
State	Published - Apr 30 2005
Externally published	Yes

Funding

The work at UNLV was supported by DOE, National Nuclear Security Administration, under Cooperative Agreement DE-FC08-1NV14049 and the NSF REU program under Contract No. PHY-0139584.

Funders	Funder number
National Science Foundation	PHY-0139584
U.S. Department of Energy
National Nuclear Security Administration	DE-FC08-1NV14049

Keywords

Antiferromagnetism
Geometrical frustration
Heat capacity

Access to Document

10.1016/j.physb.2005.01.372

Cite this

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title = "Disturbing the spin liquid state in Tb2Ti2O 7: Heat capacity measurements on rare earth titanates",

abstract = "One of the best-known spin liquids is the geometrically frustrated pyrochlore Tb2Ti2O7. In a spin liquid, there are short-range dynamic magnetic correlations and an absence of static long-range magnetic order down to 0 K. We have measured heat capacity at low temperatures in magnetic field to 80 kOe on Nd2Ti2O 7, Tb2Ti2O7, and Tb 2TiO5 to better understand the spin liquid state. Nd 2Ti2O7 displays antiferromagnetic order at T=0.6K much lower than the paramagnetic Curie temperature. Application of magnetic field or distortion of the Tb sublattice destroys the spin liquid as evidenced by static spins.",

keywords = "Antiferromagnetism, Geometrical frustration, Heat capacity",

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T2 - Heat capacity measurements on rare earth titanates

AU - Cornelius, A. L.

AU - Light, B. E.

AU - Kumar, Ravhi S.

AU - Eichenfield, M.

AU - Dutton, T.

AU - Pepin, R.

AU - Gardner, J. S.

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AB - One of the best-known spin liquids is the geometrically frustrated pyrochlore Tb2Ti2O7. In a spin liquid, there are short-range dynamic magnetic correlations and an absence of static long-range magnetic order down to 0 K. We have measured heat capacity at low temperatures in magnetic field to 80 kOe on Nd2Ti2O 7, Tb2Ti2O7, and Tb 2TiO5 to better understand the spin liquid state. Nd 2Ti2O7 displays antiferromagnetic order at T=0.6K much lower than the paramagnetic Curie temperature. Application of magnetic field or distortion of the Tb sublattice destroys the spin liquid as evidenced by static spins.

KW - Antiferromagnetism

KW - Geometrical frustration

KW - Heat capacity

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