Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 1098118

Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order


Chogondahalli Muniraju, Naveen Kumar; Baral, Raju; Tian, Yefan; Li, Rui; Poudel, Narayan; Gofryk, Krzysztof; Barišić, Neven; Kiefer, Boris; Ross, Joseph H.; Nair, Harikrishnan S.
Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order // Inorganic chemistry, 59 (2020), 20; 15144-15153 doi:10.1021/acs.inorgchem.0c02074 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1098118 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order

Autori
Chogondahalli Muniraju, Naveen Kumar ; Baral, Raju ; Tian, Yefan ; Li, Rui ; Poudel, Narayan ; Gofryk, Krzysztof ; Barišić, Neven ; Kiefer, Boris ; Ross, Joseph H. ; Nair, Harikrishnan S.

Izvornik
Inorganic chemistry (0020-1669) 59 (2020), 20; 15144-15153

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
garnet compound, Frustration

Sažetak
In this paper, the hyperkagome lattice of Gd spins in agarnet compound, Gd3CrGa4O12, is studied using bulk measurementsand density functional computations, and the observation of largemagnetocaloric effect corresponding to an entropy change, ΔSm=45Jkg−1K−1(≈45 J mol−1K−1) at 2 K, 8 T is reported. Though thecompound defies long-range magnetic order down to 0.4 K, a broadfeature below 10 K is observed in the specific heat with two lowtemperature anomalies atT*≈0.7 K andTS≈2.45 K. The anomaly atT*is reminiscent of one in Gd3Ga5O12, where it is related to thedevelopment of a complex magnetic phase, whereas theTS-peak isaccounted for by a multilevel Schottky-like model. The spin−latticerelaxation times studied by nuclear magnetic resonance experimentsshow that the relaxation is dominated by the magneticfluctuations in Crwhich has a longer relaxation time compared to that of the garnet, Lu3CrGa4O12containing a nonmagnetic rare earth. Ourfirst-principles density functional theory calculations agree well with the experimental results and support short-range magnetic order inthe Gd-sublattice and antiferromagnetism in the Cr-sublattice. The importance of spinfluctuations and short-range order in the rareearth and transition metal lattices in garnets resulting in large magnetocaloric effect is brought out through this work.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
HRZZ-IZHRZO 180590i1 - ACT - Zajednički istraživački projekt ''Hrvatsko - švicarski istraživački program CSRP 2017-2023'' (ACT) (Serdar, Marijana, HRZZ - CSRP 2017 – 2023) ( POIROT)
EK-EFRR-KK.01.1.1.02.0013 - Centar za Napredna Istraživanja Kompleksnih Sustava (CeNIKS) (Grbić, Mihael Srđan; Tafra, Emil, EK - KK.01.1.1.02) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Neven Barišić (autor)

doi

Citiraj ovu publikaciju

Chogondahalli Muniraju, Naveen Kumar; Baral, Raju; Tian, Yefan; Li, Rui; Poudel, Narayan; Gofryk, Krzysztof; Barišić, Neven; Kiefer, Boris; Ross, Joseph H.; Nair, Harikrishnan S.
Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order // Inorganic chemistry, 59 (2020), 20; 15144-15153 doi:10.1021/acs.inorgchem.0c02074 (međunarodna recenzija, članak, znanstveni)
Chogondahalli Muniraju, N., Baral, R., Tian, Y., Li, R., Poudel, N., Gofryk, K., Barišić, N., Kiefer, B., Ross, J. & Nair, H. (2020) Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order. Inorganic chemistry, 59 (20), 15144-15153 doi:10.1021/acs.inorgchem.0c02074.
@article{article, year = {2020}, pages = {15144-15153}, DOI = {10.1021/acs.inorgchem.0c02074}, keywords = {garnet compound, Frustration}, journal = {Inorganic chemistry}, doi = {10.1021/acs.inorgchem.0c02074}, volume = {59}, number = {20}, issn = {0020-1669}, title = {Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order}, keyword = {garnet compound, Frustration} }
@article{article, year = {2020}, pages = {15144-15153}, DOI = {10.1021/acs.inorgchem.0c02074}, keywords = {garnet compound, Frustration}, journal = {Inorganic chemistry}, doi = {10.1021/acs.inorgchem.0c02074}, volume = {59}, number = {20}, issn = {0020-1669}, title = {Magnetocaloric Effect in a Frustrated Gd-Garnet with No Long-Range Magnetic Order}, keyword = {garnet compound, Frustration} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Citati





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font