Low Temperature & High Pressure NMR Lab

Welcome to the Low Temperature & High Pressure NMR lab at Iowa State University/Ames Laboratory

Research interests

Superconductivity; Nuclear magnetic resonance; Strongly correlated electron systems; Low-dimensional Frustrated Spin Systems.

News

2022:

12.6-8 Yuji Furukawa gave an online invited talk entitled “High Pressure NMR Studies of Fe-based superconductor FeSe1-xSx: Interrelationships between magnetic fluctuations, nematicity, and superconductivity" at the International Forum on Applied Superconductivity and Magnetism (IFASM Oceania 2022) at Gold Coast in Australia.

11.26-27 Yuji Furukawa visited Muroarn Institute of technology to give an invited talk entitled “High-Pressure NMR Studies of Fe-based superconductor FeSe1-xSx” at Muroran-IT Rare Earth Workshop 2022 (REWS2022) in Muroran, Japan.

11.07 Congrats to Devi for her work Static and dynamic magnetic properties of the spin-5/2 triangle lattice antiferromagnet Na3Fe(PO4)2 studied by 31P NMR has been published in Journal of Physics: Condensed Matter J. Phys.: Condens. Matter 51, 015803 (2022).

09.06 Congrats to Khatua, our collaborated work Quantum spin liquid candidate in a rare-earth hyperkagome lattice has been published in Phys. Rev. B. Phys. Rev. B 106, 104404 (2022).

07.28 Congrats to Sandip, our collaborated work Deformed spin-1/2 square lattice in antiferromagnetic NaZnVOPO4(HPO4) has been published in Phys. Rev. B. Phys. Rev. B 106, 024426 (2022).

07.02-18. Yuji Furukawa visited Hokkaido University, Kobe University, Ehime University, and Muroran Institute of Technology.

06.17. Congrats to Devi and Qing-Ping for their work "Possible Coexistence of Antiferromagnetic and Ferromagnetic Spin Fluctuations in the Spin-triplet Superconductor UTe2 Revealed by 125Te NMR under Pressure" published as a Letter in Phys. Rev. B. Phys. Rev. B 105, L220403 (2022) .

06.10 Our group attended the 2022 Ames-Iowa Mini NMR Symposium held at Ames Laboratory. Khusboo (Relationship Between Superconductivity, Nematicity and Antiferromagnetism in FeSe0.91S0.09 Under Pressure), Devi (NMR Study of Spin-5/2 Triangle Lattice Antiferromagnet Na3Fe(PO4)2) and Yuji (Magnetic Properties of the Filled-Skutterudite Compounds SrFe4As12 Studied by 75As NMR/NQR) gave talks at the symposium.

05.16 Congrats to Daniel for passing the final oral exam for his Master's degree.

05.11-13. Khusboo Rana and Yuji Furukawa attended the international workshop "Experimental Advances in the Use of Pressure and Strain to Probe and Control Quantum Matter" PSQM-2022 at Ames in Iowa. Yuji gave an invited talk entitled “High Pressure NMR studies of FeSe1-xSx: Relationships between antiferromagnetic spin fluctuations, nematicity, and superconductivity", and Khusboo gave a poster presentation entitled "Microscopic characterization of quantum criticality in LaCrGe3 using 139La NMR under high pressure".

04.08 Congrats to Qing-Ping for his work "Itinerant G-type antiferromagnet SrCr2As2 studied by magnetization, heat capacity, electrical resistivity, and NMR measurements" being published in Phys. Rev. B. Phys. Rev. B 105, 134408 (2022).

03.14-18 Yuji Furukawa attended the APS March Meeting in Chicago.

03.10 Congrats to Qing-Ping for his work "Slow Spin Dynamics in the Hyper-Honeycomb Lattice [(C2H5)3NH]2Cu2(C2O4)3 Revealed by 1H NMR Studies" being published as a Letter in Phys. Rev. B. Phys. Rev. B 105, L100405 (2022).

03. 08 Congrats to Khusboo for his mini-review "Relationship between Nematicity, Antiferromagnetic Fluctuations, and Superconductivity in FeSe1-xSx revealed by NMR" being published in Frontiers in Physics. Front. Phys. 10:849284 (2022).

2021:

12.09 Congrats to Qing-Ping for his work "Incommensurate and commensurate antiferromagnetic states in CaMn2As2 and SrMn2As2 revealed by 75As NMR" being published in Phys. Rev. B. Phys. Rev. B 104, 224413 (2021).

11.01 Khusboo successfully defended his PhD thesis. Congratulations to Dr. Rana!

10.28 Congrats to Sangeetha, our collaborated work “First-order antiferromagnetic transitions of SrMn2P2 and CaMn2P2 single crystals containing corrugated-honeycomb Mn sublattices ” has been published in PNAS. PNAS 118, e2108724118 (2021).

10.26 Yuji Furukawa gave an invited talk entitled NMR studies of the filled skutterudite compounds AT4As12 (A = Eu, Sr, T = Fe, Os)” at the Rare Earth Workshop 2021 (REWS2021) in Muroran, Japan.

10.01 Our group met with Dr. Dan Shechtman, a Nobel laureate.

09.22 Congrats to Somesh, our collaborated work Universal fluctuating regime in triangular chromate antiferromagnets has been published in Phys. Rev. B. Phys. Rev. B 104, 104422 (2021).

09.13 Welcome visiting Prof. Ananda Shastri back.

06.14 Congrats to Sandip, our collaborated work Quasi-one-dimensional uniform spin-1/2 Heisenberg antiferromagnet KNaCuP2O7 probed by 31P and 23Na NMR has been published in Phys. Rev. B. Phys. Rev. B 103, 224415 (2021).

05.21 Congrats to Khusboo for his work “Magnetic properties of the itinerant ferromagnet LaCrGe3 under pressure studied by 139La NMR” being published in Phys. Rev. B. Phys. Rev. B 103, 174426 (2021), and was selected as "Editors' Suggestion", also highlighted by Ames Laboratory.

04.12 Yuji Furukawa gave an invited talk entitled “Relationships between antiferromagnetic spin fluctuations, nematicity and superconductivity in FeSe1-xSx revealed by 77Se nuclear magnetic resonance”, at the International Conference of Solid Compounds of Transition Elements (SCTE2021) in Wroclaw, Poland.

02.08 Congrats to Sebin, our collaborated work "Quasi-one-dimensional magnetism in the spin-1/2 antiferromagnet BaNa2Cu(VO4)2" has been published in Phys. Rev. B. Phys. Rev. B 103, 064413 (2021).