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Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves
Physical Review B, 94 (2016), 7; 75155-11. https://doi.org/10.1103/PhysRevB.94.075155
Kokanović, Ivan; Cooper, J. R.

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

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Kokanović, I. i Cooper, J. R. (2016). Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves. Physical Review B, 94. (7), 75155-11. doi: 10.1103/PhysRevB.94.075155

Kokanović, Ivan i J. R. Cooper. "Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves." Physical Review B, vol. 94, br. 7, 2016, str. 75155-11. https://doi.org/10.1103/PhysRevB.94.075155

Kokanović, Ivan i J. R. Cooper. "Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves." Physical Review B 94, br. 7 (2016): 75155-11. https://doi.org/10.1103/PhysRevB.94.075155

Kokanović, I. i Cooper, J. R. (2016) 'Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves', Physical Review B, 94(7), str. 75155-11. doi: 10.1103/PhysRevB.94.075155

Kokanović I, Cooper JR. Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves. Physical Review B [Internet]. 29.08.2016. [pristupljeno 26.11.2024.];94(7):75155-11. doi: 10.1103/PhysRevB.94.075155

I. Kokanović i J. R. Cooper, "Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves", Physical Review B, vol. 94, br. 7, str. 75155-11, Kolovoz 2016. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:884069. [Citirano: 26.11.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:884069
Podaci o radu
Naslov (engleski)Magnetic susceptibility of crystals: Unusual Curie behavior and small contributions from charge density waves
AutorIvan Kokanović
AutorJ. R. Cooper
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
We report measurements of the magnetic susceptibility of twinned single crystals of YBa2Cu3O6+x from just above their superconducting transition temperatures to 300 K with magnetic fields of up to 5 T applied parallel and perpendicular to the CuO2 planes at seven values of x. Appropriate analysis allows the relatively small, but still important, Curie terms to be separated from other contributions to the susceptibility. Our data support a picture in which the Curie terms arise from oxygen disorder in the Cu-O chains. This agrees with published work on polycrystalline samples where the sample cooling rate was varied, but here we show that the Curie plots flatten out above 200 K. We identify small effects of charge density wave (CDW) instabilities in the temperature (T ) derivative of the in-plane susceptibility dab(T)/dT and discuss their x dependence. For x = 0.67 we make a detailed comparison with published high energy x-ray diffraction data using a minimal model involving Fermi arcs, thereby obtaining values for the CDW energy gap and the Helmholtz free energy in a coherence volume. At 80 and 100 K the latter is comparable with, or smaller than, kBT , respectively, highlighting the probable importance of thermal fluctuations. We note that the effect of the Lorentz force on charge carriers in the Fermi arcs could provide a simple mechanism for enhancing the CDWs in high magnetic fields, as suggested by recent experiments.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review B
Brojčani podacivol. 94, br. 7, str. 75155-11
p-ISSN2469-9950
e-ISSN2469-9969
DOIhttps://doi.org/10.1103/PhysRevB.94.075155
URN:NBNurn:nbn:hr:217:884069
Datum objave publikacije2016-08-29
URL dokumentahttp://link.aps.org/doi/10.1103/PhysRevB.94.075155
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Datum i vrijeme pohrane2017-02-20 15:49:55