Elliott W. Rosenberg

Stanford University

*This is an algorithmically generated author record based on publicly available information.

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Stanford University

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University of Washington

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Elliott W. Rosenberg has a total of 20 co-authors. Here are the top co-authors by number of shared publications:

Ian Randal Fisher
Stanford University
2 shared publications
B. J. Ramshaw
Department of Physics, and Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853
1 shared publication
Donghui Lu
Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
1 shared publication
Ji Seop Oh
Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
1 shared publication
Jiun-Haw Chu
Department of Physics, University of Washington, Seattle, Washington 98195, USA
1 shared publication
Jonathan M. DeStefano
University of Washington
1 shared publication

Latest Publications

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Cited by 9
- 13 June 2024
- Published by National Academy of Sciences in Proceedings of the National Academy of Sciences
Giant elastocaloric effect at low temperatures in TmVO ₄ and implications for cryogenic cooling
by Mark P. Zic, Matthias S. Ikeda, Pierre Massat, Patrick M. Hollister, Linda Ye, Elliott W. Rosenberg, Joshua A. W. Straquadine, Yuntian Li, B. J. Ramshaw, Ian R. Fisher
Adiabatic decompression of paraquadrupolar materials has significant potential as a cryogenic cooling technology. We focus on TmVO 4 , an archetypal material that undergoes a continuous phase transition to a ferroquadrupole-ordered state at 2.15 K. Above the phase transition, each Tm ion contributes an entropy of k B ln 2 due to the degeneracy of the crystal electric field groundstate. Owing to the large magnetoelastic coupling, which is a prerequisite for a material to undergo a phase transition via the cooperative Jahn–Teller effect, this level splitting, and hence the entropy, can be readily tuned by externally induced strain. Using a dynamic technique in which the strain is rapidly oscillated, we measure the adiabatic elastocaloric response of single-crystal TmVO 4 , and thus experimentally obtain the entropy landscape as a function of strain and temperature. The measurement confirms the suitability of this class of materials for cryogenic cooling applications and provides insight into the dynamic quadrupole strain susceptibility.
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- 13 June 2024
- Published by National Academy of Sciences in Proceedings of the National Academy of Sciences
Open Access
Giant elastocaloric effect at low temperatures in TmVO ₄ and implications for cryogenic cooling
by Mark P. Zic, Matthias S. Ikeda, Pierre Massat, Patrick M. Hollister, Linda Ye, Elliott W. Rosenberg, Joshua A. W. Straquadine, Yuntian Li, B. J. Ramshaw, Ian R. Fisher
Adiabatic decompression of paraquadrupolar materials has significant potential as a cryogenic cooling technology. We focus on TmVO 4 , an archetypal material that undergoes a continuous phase transition to a ferroquadrupole-ordered state at 2.15 K. Above the phase transition, each Tm ion contributes an entropy of k B ln 2 due to the degeneracy of the crystal electric field groundstate. Owing to the large magnetoelastic coupling, which is a prerequisite for a material to undergo a phase transition via the cooperative Jahn–Teller effect, this level splitting, and hence the entropy, can be readily tuned by externally induced strain. Using a dynamic technique in which the strain is rapidly oscillated, we measure the adiabatic elastocaloric response of single-crystal TmVO 4 , and thus experimentally obtain the entropy landscape as a function of strain and temperature. The measurement confirms the suitability of this class of materials for cryogenic cooling applications and provides insight into the dynamic quadrupole strain susceptibility.
Cited by 9
Open Access
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Cited by 11
- 29 May 2024
- Published by Springer Nature in npj Quantum Materials
The nematic susceptibility of the ferroquadrupolar metal TmAg2 measured via the elastocaloric effect
by Elliott W. Rosenberg, Matthias Ikeda, Ian R. Fisher
Elastocaloric measurements of the ferroquadrupolar/nematic rare-earth intermetallic TmAg₂ are presented. TmAg₂ undergoes a cooperative Jahn-Teller-like ferroquadrupolar phase transition at 5K, in which the Tm³⁺ ion’s local 4f electronic ground state doublet spontaneously splits and develops an electric quadrupole moment which breaks the rotational symmetry of the tetragonal lattice. The elastocaloric effect, which is the temperature change in the sample induced by adiabatic strains the sample experiences, is sensitive to quadrupolar fluctuations in the paranematic phase which couple to the induced strain. We show that elastocaloric measurements of this material reveal a Curie-Weiss like nematic susceptibility with a Weiss temperature of T* ≈ 2.7K, in agreement with previous elastic constant measurements. Furthermore, we establish that a magnetic field along the c-axis acts as an effective transverse field for the quadrupole moments.
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- 29 May 2024
- Published by Springer Nature in npj Quantum Materials
Open Access
The nematic susceptibility of the ferroquadrupolar metal TmAg2 measured via the elastocaloric effect
by Elliott W. Rosenberg, Matthias Ikeda, Ian R. Fisher
Elastocaloric measurements of the ferroquadrupolar/nematic rare-earth intermetallic TmAg₂ are presented. TmAg₂ undergoes a cooperative Jahn-Teller-like ferroquadrupolar phase transition at 5K, in which the Tm³⁺ ion’s local 4f electronic ground state doublet spontaneously splits and develops an electric quadrupole moment which breaks the rotational symmetry of the tetragonal lattice. The elastocaloric effect, which is the temperature change in the sample induced by adiabatic strains the sample experiences, is sensitive to quadrupolar fluctuations in the paranematic phase which couple to the induced strain. We show that elastocaloric measurements of this material reveal a Curie-Weiss like nematic susceptibility with a Weiss temperature of T* ≈ 2.7K, in agreement with previous elastic constant measurements. Furthermore, we establish that a magnetic field along the c-axis acts as an effective transverse field for the quadrupole moments.
Cited by 11
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Cited by 113
- 22 September 2022
- Published by American Physical Society (APS) in Physical Review B
Uniaxial ferromagnetism in the kagome metal ${TbV}_{6} {Sn}_{6}$
by Elliott Rosenberg, Jonathan M. DeStefano, Yucheng Guo, Ji Seop Oh, Makoto Hashimoto, Donghui Lu, Robert J. Birgeneau, Yongbin Lee, Liqin Ke, Ming Yi, et al.
The synthesis and characterization of the vanadium-based kagome metal $Tb V_{6} Sn_{6}$ is presented. X-ray measurements confirm that this material forms with the same crystal structure type as the recently investigated kagome metals $Gd V_{6} {Sn}_{6}$ and $Y V_{6} {Sn}_{6}$ , with space group symmetry $P 6 / m m m$ . A signature of a phase transition at 4.1 K is observed in heat capacity, resistivity, and magnetic susceptibility measurements, and both resistivity and magnetization measurements exhibit hysteresis in magnetic field. Furthermore, a strikingly large anisotropy in the magnetic susceptibility was observed, with the $c$ -axis susceptibility roughly 75 times the $a b$ plane susceptibility at 5 K. This is highly suggestive of uniaxial ferromagnetism, and the large size of $9.4 μ_{b} / f . u .$ indicates the ${Tb}^{3 +} 4 f$ electronic moments cooperatively align perpendicular to the V kagome lattice plane. The entropy at the phase transition is nearly $R$ ln(2), indicating that the crystalline electric field ground state of the ${Tb}^{3 +}$ ion is a doublet, and therefore the sublattice of $4 f$ electrons in this material can be shown to map at low temperatures to the Ising model in a $D_{6 h}$ symmetry environment. Hall measurements at temperatures from 300 to 1.7 K can be described by two-band carrier transport at temperatures below around 150 K, with a large increase in both hole and electron mobilities, similar to $Y V_{6} {Sn}_{6}$ , and an anomalous Hall effect is seen below the ordering temperature. Angle-resolved photoemission measurements above the magnetic ordering temperature reveal typical kagome dispersions. Our study presents $Tb V_{6} Sn_{6}$ as an interesting system where Ising ferromagnetism coexists with nontrivial electronic states emerging from a kagome lattice.
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- 22 September 2022
- Published by American Physical Society (APS) in Physical Review B
Uniaxial ferromagnetism in the kagome metal ${TbV}_{6} {Sn}_{6}$
by Elliott Rosenberg, Jonathan M. DeStefano, Yucheng Guo, Ji Seop Oh, Makoto Hashimoto, Donghui Lu, Robert J. Birgeneau, Yongbin Lee, Liqin Ke, Ming Yi, et al.
The synthesis and characterization of the vanadium-based kagome metal $Tb V_{6} Sn_{6}$ is presented. X-ray measurements confirm that this material forms with the same crystal structure type as the recently investigated kagome metals $Gd V_{6} {Sn}_{6}$ and $Y V_{6} {Sn}_{6}$ , with space group symmetry $P 6 / m m m$ . A signature of a phase transition at 4.1 K is observed in heat capacity, resistivity, and magnetic susceptibility measurements, and both resistivity and magnetization measurements exhibit hysteresis in magnetic field. Furthermore, a strikingly large anisotropy in the magnetic susceptibility was observed, with the $c$ -axis susceptibility roughly 75 times the $a b$ plane susceptibility at 5 K. This is highly suggestive of uniaxial ferromagnetism, and the large size of $9.4 μ_{b} / f . u .$ indicates the ${Tb}^{3 +} 4 f$ electronic moments cooperatively align perpendicular to the V kagome lattice plane. The entropy at the phase transition is nearly $R$ ln(2), indicating that the crystalline electric field ground state of the ${Tb}^{3 +}$ ion is a doublet, and therefore the sublattice of $4 f$ electrons in this material can be shown to map at low temperatures to the Ising model in a $D_{6 h}$ symmetry environment. Hall measurements at temperatures from 300 to 1.7 K can be described by two-band carrier transport at temperatures below around 150 K, with a large increase in both hole and electron mobilities, similar to $Y V_{6} {Sn}_{6}$ , and an anomalous Hall effect is seen below the ordering temperature. Angle-resolved photoemission measurements above the magnetic ordering temperature reveal typical kagome dispersions. Our study presents $Tb V_{6} Sn_{6}$ as an interesting system where Ising ferromagnetism coexists with nontrivial electronic states emerging from a kagome lattice.
Cited by 113